Addon
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custom |
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Unique Feature 1
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Add-On not supported by this product
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Add-On not supported by this product
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Add-On not supported by this product
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General
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- Fully Supported
- Limitation
- Not Supported
- Information Only
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Pros
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- + mature and feature-rich offering
- + great ecosystem & support
- + skills prevelant
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- + mature and feature-rich offering
- + great ecosystem & support
- + skills prevelant
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Cons
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- - needs clear strategy for public cloud future
- - comprehensive capability but can become expensive
- - NSX leading SDN solution but skills scarce
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- - needs clear strategy for public cloud future
- - comprehensive capability but can become expensive
- - NSX leading SDN solution but skills scarce
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Content |
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THE VIRTUALIST
Content created by THE VIRTUALIST
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THE VIRTUALISTS
Content created by THE VIRTUALISTS: http://www.thevirtualist.org/
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THE VIRTUALIST
Content created by THE VIRTUALIST
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Assessment |
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vSphere 6.7 with Operations Management Enterprise Plus - Click Here For Overview
vSphere is the collective term for VMwares virtualization platform, it includes the ESX hypervisor as well as the vCenter Management suite and associate components. vSphere is considered by many the industrys most mature and feature rich virtualization platform and had its origins in the initial ESX releases around 2001/2002.
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XenServer 6.5 is available in Standard Edition and Enterprise Edition
On 13th January 2015 Citrix released XenServer 6.5, offering a 64bit Dom0 and significant networking and disk performance increase.
In May 2015, XenServer 6.5.0 Service Pack 1 came with new features, see http://support.citrix.com/article/CTX142355
-Enhanced guest support
-Intel GVT-d Pass-through support for Windows VMs
-NVIDIA GPU Pass-through support for Linux VMs
-Ability to manage and monitor Docker™ containers using XenCenter
-Improved user experience for read caching. Customers can now see the status of read caching in XenCenter
Citrix announced in April 2013 that XenServer will be made available open source, as a Linux Foundation Collaborative Project, see http://xenserver.org/.
What is the difference between XenServer and the open-source Xen Project Hypervisor?
The Xen Project hypervisor is used by XenServer. In addition to the open-source Xen Project hypervisor, Citrix XenServer includes:
Control domain (dom0)
XenCenter - A Windows client for VM management
VM Templates for installing popular operating systems as VMs
Enterprise level support
Citrix entered the Hypervisor market with the acquisition of XenSource - the main supporter of the open source Xen project - in Oct 2007. The Xen project continues to exist, see http://www.xen.org/.
Citrix created a suite of commercial products that are named after the open source project including XenApp (aka Presentation Server), XenDesktop (Citrixs hosted virtual desktop/VDI solution) and XenServer (the only product actually based on the open source Xen hypervisor code.
XenServer uses paravirtualization and hardware-assisted virtualization, requiring either a modified guest OSs or hardware assisted CPUs (more commonly seen as its less restrictive and hardware assisted CPUs like Intel VT/AMD-V have become standard). The device drivers are provided through a Linux-based guest (CentOS) running in a control virtual machine (Dom0).
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vSphere 6.7 Enterprise Plus - Click Here For Overview
vSphere is the collective term for VMwares virtualization platform, it includes the ESX hypervisor as well as the vCenter Management suite and associate components. vSphere is considered by many the industrys most mature and feature rich virtualization platform and had its origins in the initial ESX releases around 2001/2002.
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Release Dates:
vSphere 6.7 : April 17th 2018
vSphere 6.7 is VMwares 6th generation of bare-metal enterprise virtualization software, from ESX1.x (2001/2), 2.x (2003) to Virtual Infrastructure 3 (2006), in May 2009 to vSphere 4.x. The ESXi architecture (small-footprint) became available in Dec 2007. vSphere 5 was announced July 2011 with GA August 2011 and was the first vSphere release converged on ESXi only, vSphere 5.1 was released 10th Sep 2012, vSphere 5.5 on Sep 22nd 2013, vSphere 6 on Feb 2nd 2015, vSphere 6.5 on November 15th 2016, vSphere 6.7 : April 17th 2018
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6.5 Release Date January 2015 (Xen - 2003, Citrix XenServer 2007, 5.6SP2 March 2011, v6: Sep 2011, 6.1: Sep 2012, 6.2 June 2013)
Xen first public release was in 2003, became part of the Novell SUSE 10 OS in 2005 (later also Red hat). In Oct 2007 Citrix acquired XenSource (the main maintainer of the Xen code) and released XenServer under the Citrix brand. Version 5.6 was released 05/2010, 5.6 SP2 released May 2011, XenServer 6 in Sep 2011 and XenServer 6.1 in Sep 2012, XenServer 6.2 in June 2013.
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Release Dates:
vSphere 6.7 : April 17th 2018
vSphere 6.7 is VMwares 6th generation of bare-metal enterprise virtualization software, from ESX1.x (2001/2), 2.x (2003) to Virtual Infrastructure 3 (2006), in May 2009 to vSphere 4.x. The ESXi architecture (small-footprint) became available in Dec 2007. vSphere 5 was announced July 2011 with GA August 2011 and was the first vSphere release converged on ESXi only, vSphere 5.1 was released 10th Sep 2012, vSphere 5.5 on Sep 22nd 2013, vSphere 6 on Feb 2nd 2015, vSphere 6.5 on November 15th 2016, vSphere 6.7 : April 17th 2018
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Pricing |
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OM Ent+ :
$4,275/socket + S&S 1Y: $897 (B) or $1,068 (Prod)
vSphere is licensed per physical CPU (socket, not core), without restrictions on the amount of physical cores or virtual RAM configured. There are also no license restrictions on the number of virtual machines that a (licensed) host can run.
S&S basic or production (1Year example) - Production (P): 24 Hours/Day 7 Days/Week 365 Days/Year; Basic (B):12 Hours/Day Monday-Friday. Subscription and Support is mandatory. Details and other packages (Acceleration Kits Essential Kits are available). Details here: http://www.vmware.com/files/pdf/vsphere_pricing.pdf and here http://www.vmware.com/products/vsphere/pricing
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Open Source (free) or two commercial editions, pricing to be announced at GA: Annual: $500 / socket, Perpetual: $1250 / socket (incl. SA and support)
For commercial editions (Standard or Enterprise)XenServer is licensed on a per-CPU socket basis. For a pool to be considered licensed, all XenServer hosts in the pool must be licensed. XenServer only counts populated CPU sockets.
Customers who have purchased XenApp or XenDesktop continue to have an entitlement to XenServer.
In XenServer 6.5, customers should allocate product licenses using a Citrix License Server, as with other Citrix components. From version 6.2.0 onwards, XenServer (other than via the XenDesktop licenses) is licensed on a per-socket basis. Allocation of licenses is managed centrally and enforced by a standalone Citrix License Server, physical or virtual, in the environment. After applying a per-socket license, XenServer will display as Citrix XenServer Per-Socket Edition.
For more info: http://bit.ly/1MuvfLO
Pricing:
Annual - $500 per socket (License and Software Maintenance: SA and support)
Perpetual - $1250 per socket (License and Software Maintenance: SA and support)
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Ent+ :
$3,305/socket + S&S 1Y: $693 (B) or $825 (Prod)
vSphere is licensed per physical CPU (socket, not core), without restrictions on the amount of physical cores or virtual RAM configured. There are also no license restrictions on the number of virtual machines that a (licensed) host can run.
S&S basic or production (1Year example) - Production (P): 24 Hours/Day 7 Days/Week 365 Days/Year; Basic (B):12 Hours/Day Monday-Friday. Subscription and Support is mandatory. Details and other packages (Acceleration Kits Essential Kits are available). Details here: http://www.vmware.com/files/pdf/vsphere_pricing.pdf and here http://www.vmware.com/products/vsphere/pricing
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$5,835(Std) + $1,224(B) or $1,458 (P)
vCenter Server
Centralized visibility, proactive management and extensibility for VMware vSphere from a single console
VMware vCenter Server provides a centralized platform for managing your VMware vSphere environments, so you can automate and deliver a virtual infrastructure with confidence.
http://www.vmware.com/products/vcenter-server.html
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Free (XenCenter)
Citrix XenCenter is the Windows-native graphical user interface for managing Citrix XenServer. It is included for no additional cost (open source as well as commercial versions).
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$5,835(Std) + $1,224(B) or $1,458 (P)
vCenter Server
Centralized visibility, proactive management and extensibility for VMware vSphere from a single console
VMware vCenter Server provides a centralized platform for managing your VMware vSphere environments, so you can automate and deliver a virtual infrastructure with confidence.
http://www.vmware.com/products/vcenter-server.html
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Bundle/Kit Pricing
Details
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yes
Kits:
- VMware vSphere Remote Office Branch Office Editions
- VMware vSphere Essentials Kits
- VMware vSphere and vSphere with Operations Management Acceleration Kits
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No
no bundles or kits are documented
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yes
Kits:
- VMware vSphere Remote Office Branch Office Editions
- VMware vSphere Essentials Kits
- VMware vSphere and vSphere with Operations Management Acceleration Kits
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Guest OS Licensing
Details
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No
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No
A demo Linux VM is include, there are no guest OS licenses included with the XenServer license. Guest OSs need to be therefore licensed separately.
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No
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VM Mobility and HA
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VM Mobility |
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Live Migration of VMs
Details
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Yes (vMotion)
vMotion
- Cross-vCenter vMotion with mixed-version (new)
- Cross vSwitch vMotion (all versions)
- Cross vCenter vMotion (n/a for Standard)
- Long Distance vMotion (n/a for Standard)
- Cross Cloud vMotion (n/a for Standard)
- Encryption vMotion (n/a for Standard)
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Yes XenMotion (1)
XenMotion enables live migration of virtual machines across XenServer hosts without perceived downtime. XenServer supports only one migration at a time (i.e. sequential execution if multiple are started)
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Yes (vMotion)
vMotion
- Cross-vCenter vMotion with mixed-version (new)
- Cross vSwitch vMotion (all versions)
- Cross vCenter vMotion (n/a for Standard)
- Long Distance vMotion (n/a for Standard)
- Cross Cloud vMotion (n/a for Standard)
- Encryption vMotion (n/a for Standard)
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Migration Compatibility
Details
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Yes (EVC)
EVC can be enabled Per-VM (new)
Enhanced vMotion Compatibility - enabled on vCenter cluster-level, utilizes Intel FlexMigration or AMD-V Extended Migration functionality available with most newer CPUs (but cannot migrate between Intel and AMD), Details here: http://kb.vmware.com/kb/1005764
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Yes (Heterogeneous Pools)
XenServer 5.6 introduced Heterogeneous Pools which enables live migration across different CPU types of the same vendor (requires AMD Extended Migration or Intel Flex Migration), details here: http://bit.ly/1ADu7Py.
This capability is maintained in XenServer 6.x
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Yes (EVC)
EVC can be enabled Per-VM (new)
Enhanced vMotion Compatibility - enabled on vCenter cluster-level, utilizes Intel FlexMigration or AMD-V Extended Migration functionality available with most newer CPUs (but cannot migrate between Intel and AMD), Details here: http://kb.vmware.com/kb/1005764
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Yes
Maintenance mode is a core feature to prepare a host to be shut down safely.
vSphere Quick Boot is a new innovation that restarts the ESXi hypervisor without rebooting the physical host. (new)
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Yes
Enabled through XenCenter
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Yes
Maintenance mode is a core feature to prepare a host to be shut down safely.
vSphere Quick Boot is a new innovation that restarts the ESXi hypervisor without rebooting the physical host. (new)
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Automated Live Migration
Details
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Yes (DRS) - CPU, Mem
VM Distribution: Enforce an even distribution of VMs.
Memory Metric for Load Balancing: DRS uses Active memory + 25% as its primary metric.
CPU over-commitment: This is an option to enforce a maximum vCPU:pCPU ratios in the cluster.
Network Aware DRS - system look at the network bandwidth on the host when considering making migration recommendations.
Storage IO Control configuration is now performed using Storage Policies and IO limits enforced using vSphere APIs for IO Filtering (VAIO).
Storage Based Policy Management (SPBM) framework, administrators can define different policies with different IO limits, and then assign VMs to those policies.
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Yes Workload Balancing
Workload Balancing has been re-introduced within XenServer 6.5 Enterprise Edition: Workload Balancing (WLB) automates the process of moving Virtual Machines between hosts to evenly spread Network, CPU, and Disk loads to maximize throughput. WLB keeps a history of the usage of CPU, Disk, and Network for all VMs in the pool so it can predict where workloads can be best located.
XenServer v6.2.0 included additional monitoring features for customers who wish to capture performance and throughput data. Additional 3rd party products which support workload balancing functionality are available from vendors such as VMTurbo, Lanamark, CA Technologies, Goliath, and eG Innovations.
Details here: http://bit.ly/1DLF6Y9
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Yes (DRS) - CPU, Mem
VM Distribution: Enforce an even distribution of VMs.
Memory Metric for Load Balancing: DRS uses Active memory + 25% as its primary metric.
CPU over-commitment: This is an option to enforce a maximum vCPU:pCPU ratios in the cluster.
Network Aware DRS - system look at the network bandwidth on the host when considering making migration recommendations.
Storage IO Control configuration is now performed using Storage Policies and IO limits enforced using vSphere APIs for IO Filtering (VAIO).
Storage Based Policy Management (SPBM) framework, administrators can define different policies with different IO limits, and then assign VMs to those policies.
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Yes (DPM)
Distributed Power Management - enables to consolidate virtual machines onto fewer hosts and power down unused capacity - reducing power and cooling. This can be fully automated where servers are powered off when not needed and powered back on when workload increases.
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Yes Workload Balancing
Power management is part of XenServer Workload Balancing (WLB).
Background: Power Management introduced with 5.6 was able to automatically consolidate workloads on the lowest possible number of physical servers and power off unused hosts when their capacity is not needed. Hosts would be automatically powered back on when needed.
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Yes (DPM)
Distributed Power Management - enables to consolidate virtual machines onto fewer hosts and power down unused capacity - reducing power and cooling. This can be fully automated where servers are powered off when not needed and powered back on when workload increases.
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Storage Migration
Details
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Yes (Live Storage vMotion)
Storage vMotion allows to perform live migration of virtual machine disk files (e.g. across heterogeneous storage arrays) without vm downtime. Storage DRS handles initial vmdk placement and gives migration recommendations to avoid I/O and space utilization bottlenecks on the datastores in the cluster. The migration is performed using storage vMotion.
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Yes (Storage XenMotion)
Storage XenMotion in XenServer remains unchanged from v 6.1
XenServer 6.1 introduced the long awaited (live) Storage XenMotion capability
Storage XenMotion allows storage allocation changes while VMs are running or moved from one host to another including scenarios where a) VMs are NOT located on storage shared between the hosts (shared nothing live migration) and (b) hosts are not even in the same resource pool. This enables system administrators to:
- Live migration of a VM disk across shared storage targets within a resource pool (e.g. move between LUNs when one is at capacity);
- Live migration of a VM disk from one storage type to another storage type within a resource pool (e.g. perform storage array upgrades)
- Live migration of a VM disk to or from local storage on a XenServer host within a resource pool (reduce deployment costs by using local storage)
- Rebalance or move VMs between XenServer pools (for example moving a VM from a development environment to a production environment);
Starting with XenServer 6.1, administrators initiating XenMotion and Storage XenMotion operations can specify which management interface
transfers should occur over. Through the use of multiple management interfaces, the virtual disk transfer can occur with less impact on both core XenServer operations and VM network utilization.
Citrix supports up to 3 concurrent Storage XenMotion operations. The maximum number for (non-CDROM) VDIs per VM = six. Allowed Snapshots per VM undergoing Storage XenMotion = 1.
Technical details here: http://bit.ly/1xR85sG
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Yes (Live Storage vMotion)
Storage vMotion allows to perform live migration of virtual machine disk files (e.g. across heterogeneous storage arrays) without vm downtime. Storage DRS handles initial vmdk placement and gives migration recommendations to avoid I/O and space utilization bottlenecks on the datastores in the cluster. The migration is performed using storage vMotion.
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HA/DR |
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max 64 nodes / 8000 vm per cluster
Up to 64 nodes can be in a DRS/HA cluster, with a maximum of 8000 vm/cluster
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16 hosts / resource pool
16 Hosts per Resource Pool.
Please see XenServer 6.5 Configuration Limits document http://bit.ly/17eNuo7
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max 64 nodes / 8000 vm per cluster
Up to 64 nodes can be in a DRS/HA cluster, with a maximum of 8000 vm/cluster
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Integrated HA (Restart vm)
Details
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Yes (VMware HA)
vSphere 6.5 Proactive HA detect hw condition evacuate host before failure (plugin provided OEM vendors)
Quarantine mode - host is placed in quarantine mode if it is considered in degraded state
Simplified vSphere HA Admission Control - 'Percentage of Cluster Resources' admission control policy
vSphere 6.0
- Support for Virtual Volumes – With Virtual Volumes a new type of storage entity is introduced in vSphere 6.0.
- VM Component Protection – This allows HA to respond to a scenario where the connection to the virtual machine’s datastore is impacted temporarily or permanently.
“Response for Datastore with All Paths Down”
“Response for Datastore with Permanent Device Loss”
- Increased scale – Cluster limit has grown from 32 to 64 hosts and to a max of 8000 VMs per cluster
- Registration of “HA Disabled” VMs on hosts after failure.
VMware HA restarts virtual machines according to defined restart priorities and monitors capacity needs required for defined level of failover.
vSphere HA in vSphere 5.5 has been enhanced to conform with virtual machine-virtual machine anti-affinity rules. Application availability is maintained by controlling the placement of virtual machines recovered by vSphere HA without migration. This capability is configured as an advanced option in vSphere 5.5.
vSphere 5.5 also improved the support for virtual Microsoft Failover Clustering (cluster nodes in virtual machines) - note that this functionality is independent of VMware HA and requires the appropriate Microsoft OS license and configuration of a Microsoft Failover Cluster. Microsoft clusters running on vSphere 5.5 now support Microsoft Windows Server 2012, round-robin path policy for shared storage, and iSCSI and Fibre Channel over Ethernet (FCoE) for shared storage.
While not obvious to the user - with vSphere 5, HA has been re-written from ground-up, greatly reducing configuration and failover time. It now uses a one master - all other slaves concept. HA now also uses storage path monitoring to determine host health and state (e.g. useful for stretched cluster configurations).
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Yes
XenServer High Availability protects the resource pool against host failures by restarting virtual machine. HA allows for configuration of restart priority and failover capacity. Configuration of HA is simple (effort similar to enabling VMware HA).
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Yes (VMware HA)
vSphere 6.5 Proactive HA detect hw condition evacuate host before failure (plugin provided OEM vendors)
Quarantine mode - host is placed in quarantine mode if it is considered in degraded state
Simplified vSphere HA Admission Control - 'Percentage of Cluster Resources' admission control policy
vSphere 6.0
- Support for Virtual Volumes – With Virtual Volumes a new type of storage entity is introduced in vSphere 6.0.
- VM Component Protection – This allows HA to respond to a scenario where the connection to the virtual machine’s datastore is impacted temporarily or permanently.
“Response for Datastore with All Paths Down”
“Response for Datastore with Permanent Device Loss”
- Increased scale – Cluster limit has grown from 32 to 64 hosts and to a max of 8000 VMs per cluster
- Registration of “HA Disabled” VMs on hosts after failure.
VMware HA restarts virtual machines according to defined restart priorities and monitors capacity needs required for defined level of failover.
vSphere HA in vSphere 5.5 has been enhanced to conform with virtual machine-virtual machine anti-affinity rules. Application availability is maintained by controlling the placement of virtual machines recovered by vSphere HA without migration. This capability is configured as an advanced option in vSphere 5.5.
vSphere 5.5 also improved the support for virtual Microsoft Failover Clustering (cluster nodes in virtual machines) - note that this functionality is independent of VMware HA and requires the appropriate Microsoft OS license and configuration of a Microsoft Failover Cluster. Microsoft clusters running on vSphere 5.5 now support Microsoft Windows Server 2012, round-robin path policy for shared storage, and iSCSI and Fibre Channel over Ethernet (FCoE) for shared storage.
While not obvious to the user - with vSphere 5, HA has been re-written from ground-up, greatly reducing configuration and failover time. It now uses a one master - all other slaves concept. HA now also uses storage path monitoring to determine host health and state (e.g. useful for stretched cluster configurations).
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Automatic VM Reset
Details
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Yes (VMware HA)
vSphere 6.5 - Orchestrated Restart - VMware has enforced the VM to VM dependency chain, for a multi-tier application installed across multiple VMs.
Uses heartbeat monitoring to reset unresponsive virtual machines.
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No
There is no automated restart/reset of individual virtual machines e.g. to protect against OS failure
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Yes (VMware HA)
vSphere 6.5 - Orchestrated Restart - VMware has enforced the VM to VM dependency chain, for a multi-tier application installed across multiple VMs.
Uses heartbeat monitoring to reset unresponsive virtual machines.
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VM Lockstep Protection
Details
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Yes (Fault Tolerance) 8 vCPUs. 128 GB RAM.
NEW
vSphere 6.7 now supports 8 vCPUs and 128 GB RAM per VM.
vSphere 6.5 FT has more integration with DRS and enhanced Network (lower the network latency)
Fault Tolerance brings continuous availability protection for VMs with up to 4 vCPUs in Enterprise Plus and Standard is 2 vCPUs.
Uses a shadow secondary virtual machine to run in lock-step with primary virtual machine to provide zero downtime protection in case of host failure.
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No
While XenServer can perform VM restart in case of a host failure there is no integrated mechanism to provide zero downtime failover functionality.
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Yes (Fault Tolerance) 8 vCPUs. 128 GB RAM.
NEW
vSphere 6.7 now supports 8 vCPUs and 128 GB RAM per VM.
vSphere 6.5 FT has more integration with DRS and enhanced Network (lower the network latency)
Fault Tolerance brings continuous availability protection for VMs with up to 4 vCPUs in Enterprise Plus and Standard is 2 vCPUs.
Uses a shadow secondary virtual machine to run in lock-step with primary virtual machine to provide zero downtime protection in case of host failure.
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Application/Service HA
Details
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App HA
vSphere 6.5 Proactive HA detect hw condition evacuate host before failure (plugin provided OEM vendors)
Quarantine mode - host is placed in quarantine mode if it is considered in degraded state
Simplified vSphere HA Admission Control - 'Percentage of Cluster Resources' admission control policy
VMware HA restarts virtual machines according to defined restart priorities and monitors capacity needs required for defined level of failover.
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No
There is no application monitoring/restart capability provided with XenServer
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App HA
vSphere 6.5 Proactive HA detect hw condition evacuate host before failure (plugin provided OEM vendors)
Quarantine mode - host is placed in quarantine mode if it is considered in degraded state
Simplified vSphere HA Admission Control - 'Percentage of Cluster Resources' admission control policy
VMware HA restarts virtual machines according to defined restart priorities and monitors capacity needs required for defined level of failover.
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Replication / Site Failover
Details
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Yes (vSphere Replication)
DR Orchestration (Vendor Add-On: VMware SRM)
vSphere Replication is VMware’s proprietary hypervisor-based replication engine designed to protect running virtual machines from partial or complete site failures by replicating their VMDK disk files.
This version extends support for the 5 minute RPO setting to the following new data stores: VMFS 5, VMFS 6, NFS 4.1, NFS 3, VVOL and VSAN 6.5.
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Integrated Disaster Recovery (no storage array control)
XenServer 6 introduced the new Integrated Site Recovery (maintained in 6.5), replacing the StorageLink Gateway Site Recovery used in previous versions. It utilizes the native remote data replication between physical storage arrays and automates the recovery and failback capabilities. The new approach removes the Windows VM requirement for the StorageLink Gateway components and it works now with any iSCSI or Hardware HBA storage repository (rather only the restricted storage options with StorageLink support). You can perform failover, failback and test failover. You can configure and operate it using the Disaster Recovery option in XenCenter. Please note however that Site Recovery does NOT interact with the Storage array, so you will have to e.g. manually break mirror relationships before failing over. You will need to ensure that the virtual disks as well as the pool meta data (containing all the configuration data required to recreate your vims and vApps) are correctly replicated to your secondary site.
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Yes (vSphere Replication)
DR Orchestration (Vendor Add-On: VMware SRM)
vSphere Replication is VMware’s proprietary hypervisor-based replication engine designed to protect running virtual machines from partial or complete site failures by replicating their VMDK disk files.
This version extends support for the 5 minute RPO setting to the following new data stores: VMFS 5, VMFS 6, NFS 4.1, NFS 3, VVOL and VSAN 6.5.
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Management
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General |
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Central Management
Details
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Yes (vCenter Server Standard)
vCenter Server Standard
Centralized visibility, proactive management and extensibility for VMware vSphere from a single console
VMware vCenter Server provides a centralized platform for managing your VMware vSphere environments, so you can automate and deliver a virtual infrastructure with confidence.
Available as Windows or Apliance VCSA with embeded or separate PSC.
vCenter with embedded platform services controller now supports enhanced linked mode and vCenter Server Hybrid Linked Mode (new)
- Simplified architecture (integrated vCenter Server Appliance, Update Manager included all-in-one), no Windows/SQL licensing
- Native High Availability (HA) of vCenter for the appliance is built-in – Automatic failover (Web Client may require re-login)
- Native Backup and Restore of vCenter appliance (now suport scheduler) – Simplified backup and restore with a new native file-based solution. Restore the vCenter Server configuration to a fresh appliance and stream backups to external storage using HTTP, FTP, or SCP protocols.
- New HTML5-based vSphere Client that is both responsive and easy to use (Based on our new Clarity UI)
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Yes (XenCenter), SCVMM (see details)
XenCenter is the central Windows-based multi-server management application (client) for XenServer hosts (including the open source version).
It is different to other management apps (e.g. SCVMM or vCenter) which typically have a management server/management client architecture where the management server holds centralized configuration information (typically in a 3rd party DB). Unlike these management consoles, XenCenter distributes management data across XenServer servers (hosts) in a resource pool to ensure there is no single point of management failure. If a management server (host) should fail, any other server in the pool can take over the management role. XenCenter is essentially only the client.
License administration is done using a separate web interface.
XenServer 6 introduced the ability to manage XenServer hosts and VMs with System Center Virtual Machine Manager (SCVMM) 2012. System Center Operations Manager (SCOM) 2012 will also be able to manage and monitor XenServer hosts and VMs. System Center integration is available with a special supplemental pack from Citrix.
Citrix announced with v 6.2 that several features will not be further developed and will be removed in a later release. These deprecated features function as in XenServer 6.1.0 and will remain supported, providing a period of overlap while third-party products or alternative solutions are established.
WLB has returned to XenServer 6.5 (Enterprise Edition) having been retired with the launch of XenServer 6.2. The deprecation notice for DVSC has also been rescinded within XenServer 6.5.
This initially included: Microsoft System Center Virtual Machine Manager (SCVMM) support
However, Citrix confirmed: Citrix is not deprecating support for SCVMM. However, SCVMM 2012 R2 does not currently support XS 6.2 (this being a Microsoft decision), because XS 6.2 was not released in time for this to happen).
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Yes (vCenter Server Standard)
vCenter Server Standard
Centralized visibility, proactive management and extensibility for VMware vSphere from a single console
VMware vCenter Server provides a centralized platform for managing your VMware vSphere environments, so you can automate and deliver a virtual infrastructure with confidence.
Available as Windows or Apliance VCSA with embeded or separate PSC.
vCenter with embedded platform services controller now supports enhanced linked mode and vCenter Server Hybrid Linked Mode (new)
- Simplified architecture (integrated vCenter Server Appliance, Update Manager included all-in-one), no Windows/SQL licensing
- Native High Availability (HA) of vCenter for the appliance is built-in – Automatic failover (Web Client may require re-login)
- Native Backup and Restore of vCenter appliance (now suport scheduler) – Simplified backup and restore with a new native file-based solution. Restore the vCenter Server configuration to a fresh appliance and stream backups to external storage using HTTP, FTP, or SCP protocols.
- New HTML5-based vSphere Client that is both responsive and easy to use (Based on our new Clarity UI)
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Virtual and Physical
Details
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Limited (plug-ins)
vCenter and associated components focus on management of virtual infrastructure - physical (non-virtualized) infrastructure will typically require separate management.
However, one can argue that there are increasingly aspects of physical management (bare metal host deploy, vCenter Operations capabilities, vCenter monitoring of physical hosts etc. but the core focusses on the virtual aspects).
Additionally, VMware encourages 3rd party vendors to provide management plug-ins for the vCenter Client (classic or web) that can manage peripheral components of the environment (3rd party storage, servers etc.).
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No
XenCenter focusses on managing the virtual infrastructure (XenServer host and the associated virtual machines).
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Limited (plug-ins)
vCenter and associated components focus on management of virtual infrastructure - physical (non-virtualized) infrastructure will typically require separate management.
However, one can argue that there are increasingly aspects of physical management (bare metal host deploy, vCenter Operations capabilities, vCenter monitoring of physical hosts etc. but the core focusses on the virtual aspects).
Additionally, VMware encourages 3rd party vendors to provide management plug-ins for the vCenter Client (classic or web) that can manage peripheral components of the environment (3rd party storage, servers etc.).
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RBAC / AD-Integration
Details
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Yes (vCenter and ESXi hosts)
NEW
Platform Services Controller (PSC) deals with identity management for administrators and applications that interact with the vSphere platform.
vCenter with embedded platform services controller now suppots enhanced linked mode (new)
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Yes (hosts/XenCenter)
XenServer 5.6 introduced Role Based Access Control by allowing the mapping of a user (or a group of users) to defined roles (a named set of permissions), which in turn have the ability to perform certain operations. RBAC depends on Active Directory for authentication services. Specifically, XenServer keeps a list of authorized users based on Active Directory user and group accounts. As a result, you must join the pool to the domain and add Active Directory accounts before you can assign roles.
There are 6 default roles: Pool Admin, Pool Operator, VM Power Admin, VM Admin, VM Operator and Read Only - which can be listed and modified using the xe CLI.
Details here: http://bit.ly/1E2HvQ7
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Yes (vCenter and ESXi hosts)
NEW
Platform Services Controller (PSC) deals with identity management for administrators and applications that interact with the vSphere platform.
vCenter with embedded platform services controller now suppots enhanced linked mode (new)
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Cross-Vendor Mgmt
Details
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vRealize Automation (Vendor Add-On)
VMware vRealize Automation automates the delivery of personalized infrastructure, applications and custom IT services.
This cloud automation software lets you deploy across a multi-vendor hybrid cloud infrastructure, giving you both flexibility and investment protection for current and future technology choices.
http://www.vmware.com/mena/products/vrealize-automation.html
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No (native)
Yes (Vendor Add-On: CloudPlatform)
XenCenter only manages Citrix XenServer hosts.
Comments:
- Citrixs Desktop Virtualization product (XenDesktop, fee based add-on) supports multiple hypervisors (ESX, XenServer, Hyper-V)
- Citrixs CloudPlatform supports multiple hypervisors including Citrix XenServer, Xen, KVM, VMware vSphere and Oracle VM (multiple hypervisors within a single cloud)
- The Citrix XenServer Conversion Manager in 6.1 now enables batch import of VMs created with VMware products into a XenServer pool to reduce costs of converting to a XenServer environment).
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vRealize Automation (Vendor Add-On)
VMware vRealize Automation automates the delivery of personalized infrastructure, applications and custom IT services.
This cloud automation software lets you deploy across a multi-vendor hybrid cloud infrastructure, giving you both flexibility and investment protection for current and future technology choices.
http://www.vmware.com/mena/products/vrealize-automation.html
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Browser Based Mgmt
Details
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Yes (vSphere Web Client, HTML5 Web Client)
vSphere Client - new version of the HTML5-based vSphere Client that will run alongside the vSphere Web Client. The vSphere Client is built right into vCenter Server (both Windows and Appliance) and is enabled by default.
vSphere Web Client - improvements will help with the overall user experience. (Home screen reorganized, Performance improvements, Live refresh for power states, tasks.)
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No (Web Self Service: retired)
Web Self Service (retired with the launch of XenServer 6.2) was a lightweight portal which allowed individuals to operate their own virtual machines without having administrator credentials to the XenServer host. For large infrastructures, Citrix CloudPlatform is a full orchestration product with far greater capability; for a lightweight alternative, xvpsource.org offers a free open source product.
Related Citrix products have browser based access, examples are Storefront (next generation of Web Interface) and Citrixs (separate) CloudPortal product line that contains CloudPortal Service Manager, a web portal for onboarding, provisioning and customer self-service http://www.citrix.com/English/ps2/products/feature.asp?contentID=2316906
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Yes (vSphere Web Client, HTML5 Web Client)
vSphere Client - new version of the HTML5-based vSphere Client that will run alongside the vSphere Web Client. The vSphere Client is built right into vCenter Server (both Windows and Appliance) and is enabled by default.
vSphere Web Client - improvements will help with the overall user experience. (Home screen reorganized, Performance improvements, Live refresh for power states, tasks.)
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Adv. Operation Management
Details
|
Yes (VMware vRealize Operations)
VMware vRealize Operations. Optimize resource usage through reclamation and right sizing, cross-cluster workload placement and improved planning and forecasting. Enforce IT and configuration standards for an optimal infrastructure.
http://www.vmware.com/products/vrealize-operations.html
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No
There is no advanced operations management tool included with XenServer.
Additional Info:
XenServers Integration Suite Supplemental Pack allows inter-operation with Microsofts System Center Virtual Machine Manager 2012 (SCVMM) and Systems Center Operations Manager (SCOM). SCOM enables monitoring of host performance when installed on a XenServer host.
Both of these tools can be integrated with your XenServer pool by installing the Integration Suite Supplemental Pack on each of your XenServer hosts.
For virtual desktop environments Citrix EdgeSight is a performance and availability management solution for XenDesktop, XenApp and endpoint systems. EdgeSight monitors applications, devices, sessions, license usage, and the network in real time, allowing users to quickly analyze, resolve, and proactively prevent problems.
System Center and EdgeSight are separate products not included with the XenServer license.
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Limited (native) - vCenter Operations
Full (with Vendor Add-On: vRealize Operations)
VMware vRealize Operations. Optimize resource usage through reclamation and right sizing, cross-cluster workload placement and improved planning and forecasting. Enforce IT and configuration standards for an optimal infrastructure.
http://www.vmware.com/products/vrealize-operations.html
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Updates and Backup |
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Hypervisor Upgrades
Details
|
Yes (Update Manager)
VMware Update Manager (VUM) is now part of the vCenter Server Appliance.
VUM is using own postgress db, can benefit from VCSA native HA and Backup.
|
The XenCenter released with XenServer 6.5 allows updates to be applied to all versions of XenServer (commercial and free)
With XenServer 6.5 patching and updating via the XenCenter management console (enabling automated GUI driven patch application and upgrades) is supported with the comercial and free XenServer versions.
XenServer 6 introduced the Rolling Pool Upgrade Wizard. The Wizard simplifies upgrades to XenServer 6.x by performing pre-checks with a step-by-step process that blocks unsupported upgrades. You can choose between automated or semi-automated, where automated can use a network based XenServer update repository (which you have to create) while semi-automated requires local install media. There are still manual steps required for both approaches and no scheduling functionality or online repository is integrated.
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Yes (Update Manager)
VMware Update Manager (VUM) is now part of the vCenter Server Appliance.
VUM is using own postgress db, can benefit from VCSA native HA and Backup.
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Limited (Update Manager)
With vSphere 5 update manager discontinued patching of guest operating systems. It does however provide upgrades of VMware Tools, upgrades of the virtual machine hardware for virtual machines and upgrades of virtual appliances.
|
No
There is no integrated update engine for guest OS of the virtual machines
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Limited (Update Manager)
With vSphere 5 update manager discontinued patching of guest operating systems. It does however provide upgrades of VMware Tools, upgrades of the virtual machine hardware for virtual machines and upgrades of virtual appliances.
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Yes
VMware snapshots can be taken and committed online (including a snapshot of the virtual machine memory).
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yes
You can take regular snapshots, application consistent point-in-time snapshots (requires Microsoft VSS) and snapshots with memory of a running or suspended VM. All snapshot activities (take/delete/revert) can be done while VM is online.
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Yes
VMware snapshots can be taken and committed online (including a snapshot of the virtual machine memory).
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Backup Integration API
Details
|
Yes (vStorage API Data Protection)
vStorage API for Data Protection: Enables integration of 3rd party backup products for centralized backup.
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Limited
There is no specific backup framework for integration of 3rd party backup solutions as such however the XenServer API allows for scripting (e.g. utilizing XenServer snapshots) and basic integration with 3rd party backup products and scripting (e.g. utilizing XenServer snapshots) e.g. PHD backup
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Yes (vStorage API Data Protection)
vStorage API for Data Protection: Enables integration of 3rd party backup products for centralized backup.
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Integrated Backup
Details
|
Yes (vSphere Data Protection) - Replication of backup data, granular backup and scheduling
vSphere® Data Protection is a backup and recovery solution designed for vSphere environments. Powered by EMC Avamar, it provides agent-less, image-level virtual machine backups to disk. It also provides application-aware protection for business-critical Microsoft applications (Exchange, SQL Server, SharePoint) along with WAN-efficient, encrypted backup data replication. vSphere Data Protection is fully integrated with vCenter Server and vSphere Web Client.
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No (Retired)
Citrix retired the Virtual Machine Protection and Recovery (VMPR) in XenServer 6.2. VMPR was the method of backing up snapshots as Virtual Appliances.
Alternative backup products are available from Quadric Software, SEP, and PHD Virtual
Background:
With XenServer 6, VM Protection and Recovery (VMPR) became available for Advanced, Enterprise and Platinum Edition customers.
XenServer 5.6 SP1 introduced a basic XenCenter-based backup and restore facility, the VM Protection and Recovery (VMPR) which provides a simple backup and restore utility for your
critical vims. Regular scheduled snapshots are taken automatically and can be used to restore VMs in case of disaster. Scheduled snapshots can also be automatically archived to a remote CIFS or NFS share, providing an additional level of security.
Additionally the XenServer API allows for scripting of snapshots. You can also (manually or script) export and import virtual machines for backup purposes.
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Yes (vSphere Data Protection) - Replication of backup data, granular backup and scheduling
vSphere® Data Protection is a backup and recovery solution designed for vSphere environments. Powered by EMC Avamar, it provides agent-less, image-level virtual machine backups to disk. It also provides application-aware protection for business-critical Microsoft applications (Exchange, SQL Server, SharePoint) along with WAN-efficient, encrypted backup data replication. vSphere Data Protection is fully integrated with vCenter Server and vSphere Web Client.
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Deployment |
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Automated Host Deployments
Details
|
Yes (Auto Deploy)
Auto Deploy is now part of the vCenter Server Appliance.
Integration with VCSA 6.5 can benefit from navive HA or Backup
Configurable trough GUI interface of web client.
Can manage 300+ hosts
Post boot scripts allow for aditional automation.
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No
There is no integrated host deployment mechanism in XenServer - manual local or network repository based deployments are required.
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Yes (Auto Deploy)
Auto Deploy is now part of the vCenter Server Appliance.
Integration with VCSA 6.5 can benefit from navive HA or Backup
Configurable trough GUI interface of web client.
Can manage 300+ hosts
Post boot scripts allow for aditional automation.
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Yes (Content Library)
Content Library – Provides simple and effective management for VM templates, vApps, ISO images and scripts for vSphere Admins – collectively called “content” – that can be synchronized across sites and vCenter Servers.
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Yes
Templates in XenServer are either the included pre-configured empty virtual machines which require an OS install (a shell with appropriate settings for the guest OS) or you can convert an installed (and e.g. sysprep-ed) VM into a custom template.
There is no integrated customization of the guest available, i.e. you need to sysprep manually.
You can NOT convert a template back into a VM for easy updates. You deploy a VM from template using a full copy or a fast clone using copy on write.
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Yes (Content Library)
Content Library – Provides simple and effective management for VM templates, vApps, ISO images and scripts for vSphere Admins – collectively called “content” – that can be synchronized across sites and vCenter Servers.
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Tiered VM Templates
Details
|
Yes (vApp/OVF)
Open Virtualization Format (OVF)
vApp is a collection of virtual machines (VMs) and sometimes other vApps that host a multi-tier application, its policies and service levels.
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vApp
XenServer 6 introduced vApps - maintained with v 6.5
A vApp is logical group of one or more related Virtual Machines (VMs) which can be started up as a single entity in the event of a disaster.
The primary functionality of a XenServer vApp is to start the VMs contained within the vApp in a user predefined order, to allow VMs which depend upon one another to be automatically sequenced. This means that an administrator no longer has to manually sequence the startup of dependent VMs should a whole service require restarting (for instance in the case of a software update). The VMs within the vApp do not have to reside on one host and will be distributed within a pool using the normal rules.
This also means that the XenServer vApp has a more basic capability than e.g. VMwares vApp or MSs Service Templates which contain more advanced functions.
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Yes (vApp/OVF)
Open Virtualization Format (OVF)
vApp is a collection of virtual machines (VMs) and sometimes other vApps that host a multi-tier application, its policies and service levels.
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Yes (Host Profiles)
Host profiles eliminates per-host, manual, or UI-based host configuration and maintain configuration consistency using a reference configuration which can be applied or used to check compliance status.
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No
There is no integrated capability to create host templates, apply or check hosts for compliance with certain setting.
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Yes (Host Profiles)
Host profiles eliminates per-host, manual, or UI-based host configuration and maintain configuration consistency using a reference configuration which can be applied or used to check compliance status.
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Yes (Storage Based Policy Management)
Using the Storage Based Policy Management (SPBM) framework, administrators can define different policies with different IO limits, and then assign VMs to those policies. This simplifies the ability to offer varying tiers of storage services and provides the ability to validate policy compliance.
The policy-driven control plane is the management layer of the VMware software-defined storage model, which automates storage operations through a standardized approach that spans across the heterogeneous tiers of storage in the virtual data plane.
Storage Policy-Based Management (SPBM) is VMware’s implementation of the policy-driven control plane which provides common management over:
- vSphere Virtual Volumes - external storage (SAN/NAS)
- Virtual SAN – x86 server storage
- Hypervisor-based data services – vSphere Replication or third-party solutions enabled by the vSphere APIs for IO Filtering.
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No
There are is no ability to associate storage profiles to tiers of storage resources in XenServer (e.g. to facilitate automated compliance storage tiering)
|
Yes (Storage Based Policy Management)
Using the Storage Based Policy Management (SPBM) framework, administrators can define different policies with different IO limits, and then assign VMs to those policies. This simplifies the ability to offer varying tiers of storage services and provides the ability to validate policy compliance.
The policy-driven control plane is the management layer of the VMware software-defined storage model, which automates storage operations through a standardized approach that spans across the heterogeneous tiers of storage in the virtual data plane.
Storage Policy-Based Management (SPBM) is VMware’s implementation of the policy-driven control plane which provides common management over:
- vSphere Virtual Volumes - external storage (SAN/NAS)
- Virtual SAN – x86 server storage
- Hypervisor-based data services – vSphere Replication or third-party solutions enabled by the vSphere APIs for IO Filtering.
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Other |
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Yes
vSphere supports hierarchical resource pools (parent and child pools) for CPU and memory resources on individual hosts and across hosts in a cluster. They allow for resource isolation and sharing between pools and for access delegation of resources in a cluster. Please note that DRS must be enabled for resource pool functionality if hosts are in a cluster. If DRS is not enabled the hosts must be moved out of the cluster for (local) resource pools to work.
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No
A resource pool in XenServer is hierarchically the equivalent of a vSphere or Hyper-V cluster. There is no functionality to sub-divide resources within a pool.
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Yes
vSphere supports hierarchical resource pools (parent and child pools) for CPU and memory resources on individual hosts and across hosts in a cluster. They allow for resource isolation and sharing between pools and for access delegation of resources in a cluster. Please note that DRS must be enabled for resource pool functionality if hosts are in a cluster. If DRS is not enabled the hosts must be moved out of the cluster for (local) resource pools to work.
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Yes (vCenter Converter)
VMware vCenter Converter transforms your Windows- and Linux-based physical machines and third-party image formats to VMware virtual machines.
http://www.vmware.com/products/converter.html
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No (XenConvert: retired), V2V: yes
XenConvert was retired in XenServer 6.2
XenConvert allowed conversion of a single physical machine to a virtual machine. The ability to do this conversion is included in the Provisioning Services (PVS) product shipped as part of XenDesktop. Alternative products support the transition of large environments and are available from PlateSpin.
Note: The XenServer Conversion Manager, for converting virtual machines (V2V), remains fully supported.
Background:
XenConvert supported the following sources: physical (online) Windows systems OVF, VHD, VMDK or XVA onto these targets: XenServer directly, vhd, OVF or PVS vdisk
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Yes (vCenter Converter)
VMware vCenter Converter transforms your Windows- and Linux-based physical machines and third-party image formats to VMware virtual machines.
http://www.vmware.com/products/converter.html
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Self Service Portal
Details
|
No (native)
Yes (with Vendor Add-On: vCloud Suite, vRealize Automation)
Self-Service Portal functionality is primarily provided by components in VMwares vCloud Suite or vRealize Automation - a comprehensive cloud portfolio with a single purchase enabled with a per-processor licensing metric.
http://www.vmware.com/products/vcloud-suite.html
http://www.vmware.com/products/vrealize-automation.html
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No (Web Self Service: retired in XS6.2)
Web Self Service was a lightweight portal which allowed individuals to operate their own virtual machines without having administrator credentials to the XenServer host. For large infrastructures, Citrix CloudPlatform is a full orchestration product with far greater capability; for a lightweight alternative, xvpsource.org offers a free open source product.
Related Citrix products have browser based access, examples are Storefront (next generation of Web Interface) http://bit.ly/14IKAXq, and Citrixs (separate) CloudPortal product line that contains CloudPortal Service Manager, a web portal for onboarding, provisioning and customer self-service http://bit.ly/1C3i262
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No (native)
Yes (with Vendor Add-On: vCloud Suite, vRealize Automation)
Self-Service Portal functionality is primarily provided by components in VMwares vCloud Suite or vRealize Automation - a comprehensive cloud portfolio with a single purchase enabled with a per-processor licensing metric.
http://www.vmware.com/products/vcloud-suite.html
http://www.vmware.com/products/vrealize-automation.html
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Orchestration / Workflows
Details
|
Yes (vRealize Orchestrator)
vRealize Orchestrator is included with vCenter Server Standard and allows admins to capture often executed tasks/best practices and turn them into automated workflows (drag and drop) or use out of the box workflows. An increasing number of plug-ins is available to enable automation of tasks related to related products.
http://www.vmware.com/products/vrealize-orchestrator.html
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Yes (Workflow Studio)
Workflow Studio provides a graphical interface for workflow composition in order to reduce scripting. Workflow Studio allows administrators to tie technology components together via workflows. Workflow Studio is built on top of Windows PowerShell and Windows Workflow Foundation. It natively supports Citrix products including XenApp, XenDesktop, XenServer and NetScaler.
Available as component of XenDesktop suite, Workflow Studio was retired in XenDesktop 7.x
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Yes (vRealize Orchestrator)
vRealize Orchestrator is included with vCenter Server Standard and allows admins to capture often executed tasks/best practices and turn them into automated workflows (drag and drop) or use out of the box workflows. An increasing number of plug-ins is available to enable automation of tasks related to related products.
http://www.vmware.com/products/vrealize-orchestrator.html
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Yes (ESXi Firewall, vShield Endpoint, VM Encryption)
NEW
new in vSphere 6.7:
- encrypted vMotion across different vCenter instances as well as versions
- simplifies workflows for VM Encryption
- support Microsoft’s Virtualization Based Security technologies
- support for Trusted Platform Module (TPM) 2.0
- comprehensive built-in security for secure SDDC products such as vSAN, NSX and vRealize Suite
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Basic (NetScaler - Fee-Based Add-On)
XenServer uses netfilter/iptables firewalling. There are no specific frameworks or APIs for antivirus or firewall integration.
The fee-based NetScaler provides various (network) security related capabilities through e.g.
- NetScaler Gateway: secure application and data access for Citrix XenApp, Citrix XenDesktop and Citrix XenMobile)
- NetScaler AppFirewall: secures web applications, prevents inadvertent or intentional disclosure of confidential information and aids in compliance with information security regulations such as PCI-DSS. AppFirewall is available as a standalone security appliance or as a fully integrated module of the NetScaler application delivery solution and is included with Citrix NetScaler, Platinum Edition.
Details here: http://bit.ly/17ttmKk
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Yes (ESXi Firewall, vShield Endpoint, VM Encryption)
NEW
new in vSphere 6.7:
- encrypted vMotion across different vCenter instances as well as versions
- simplifies workflows for VM Encryption
- support Microsoft’s Virtualization Based Security technologies
- support for Trusted Platform Module (TPM) 2.0
- comprehensive built-in security for secure SDDC products such as vSAN, NSX and vRealize Suite
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Systems Management
Details
|
vSphere’s REST API, PowerCLI, vSphere CLI, ESXCLI, Datacenter CLI
vSphere’s REST APIs have been extended to include VCSA and VM based management and configuration tasks. There’s also a new way to explore the available vSphere REST APIs with the API Explorer. The API Explorer is available locally on the vCenter server.
PowerCLI is now 100% module based, the Core module now supports cross vCenter vMotion by way of the Move-VM cmdlet.
The VSAN module has been bolstered to feature 13 different cmdlets which focus on trying to automate the entire lifecycle of VSAN.
ESXCLI, now features several new storage based commands for handling VSAN core dump procedures, utilizing VSAN’s iSCSI functionality, managing NVMe devices, and other core storage commands. NIC based commands such as queuing, coalescing, and basic FCOE tasks.
Datacenter CLI (DCLI), which is also installed as part of vCLI, can make use of all the new vSphere REST APIs!
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Yes (API / SDKs, CIM)
XenServer includes a XML-RPC based API, providing programmatic access to the extensive set of XenServer management features and tools. The XenServer API can be called from a remote system as well as local to the XenServer host. Remote calls are generally made securely over HTTPS, using port 443.
XenServer SDK: There are five SDKs available, one for each of C, C#, Java, PowerShell, and Python. For XenServer 6.0.2 and earlier, these were provided under an open-source license (LGPL or GPL with the common linking exception). This allows use (unmodified) in both closed-and open-source applications. From XenServer 6.1 onwards the bindings are in the majority provided under a BSD license that allows modifications.
Citrix Project Kensho provided a Common Information Model (CIM) interface to the XenServer API and introduces a Web Services Management (WSMAN) interface to XenServer. Management agents can be installed and run in the Dom0 guest.
Details here: http://bit.ly/12nQl9f
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vSphere’s REST API, PowerCLI, vSphere CLI, ESXCLI, Datacenter CLI
vSphere’s REST APIs have been extended to include VCSA and VM based management and configuration tasks. There’s also a new way to explore the available vSphere REST APIs with the API Explorer. The API Explorer is available locally on the vCenter server.
PowerCLI is now 100% module based, the Core module now supports cross vCenter vMotion by way of the Move-VM cmdlet.
The VSAN module has been bolstered to feature 13 different cmdlets which focus on trying to automate the entire lifecycle of VSAN.
ESXCLI, now features several new storage based commands for handling VSAN core dump procedures, utilizing VSAN’s iSCSI functionality, managing NVMe devices, and other core storage commands. NIC based commands such as queuing, coalescing, and basic FCOE tasks.
Datacenter CLI (DCLI), which is also installed as part of vCLI, can make use of all the new vSphere REST APIs!
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Network and Storage
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Storage |
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Supported Storage
Details
|
DAS, NFS, FC, iSCSI, FCoE (HW&SW), vFRC, SDDC
NEW
vSphere 6.7 adds:
- Virtual SAN 6.7
- NVDIMM controllers
- Virtual SCSI targets per virtual SCSI adapter 64 (per Virtual Machine 256)
- Number of total paths on a server 4096
- LUNs per server 1024
- Volumes per host 1024
vSphere 6.5 adds:
- Virtual SAN 6.5
- Virtual Volumes 2.0 (VVOL)
- VMFS 6
Support for 4K Native Drives in 512e mode
SE Sparse Default
Automatic Space Reclamation
Support for 512 devices and 2000 paths (versus 256 and 1024 in the previous versions)
CBRC aka View Storage Accelerator
vSphere 6.0 adds:
- Virtual SAN 6.0
- Virtual Volumes (VVOL)
- NFS 4.1 client
- NFS and iSCSI IPV6 support
- Storage Based Policy Management (SPBM) now available in all vSphere editions
- SIOC IOPS Reservations
- vSphere Replication
- Support for 2000 virtual machines per vCenter Server
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Yes (limited for SAS)
Dynamic multipathing support is available for Fibre Channel and iSCSI storage arrays (round robin is default balancing mode). XenServer also supports the LSI Multi-Path Proxy Driver (MPP) for the Redundant Disk Array Controller (RDAC) - by default this driver is disabled. Multipathing to SAS based SANs is not enabled, changes must typically be made to XenServer as SAS drives do not readily appear as emulated SCSI LUNs.
|
DAS, NFS, FC, iSCSI, FCoE (HW&SW), vFRC, SDDC
NEW
vSphere 6.7 adds:
- Virtual SAN 6.7
- NVDIMM controllers
- Virtual SCSI targets per virtual SCSI adapter 64 (per Virtual Machine 256)
- Number of total paths on a server 4096
- LUNs per server 1024
- Volumes per host 1024
vSphere 6.5 adds:
- Virtual SAN 6.5
- Virtual Volumes 2.0 (VVOL)
- VMFS 6
Support for 4K Native Drives in 512e mode
SE Sparse Default
Automatic Space Reclamation
Support for 512 devices and 2000 paths (versus 256 and 1024 in the previous versions)
CBRC aka View Storage Accelerator
vSphere 6.0 adds:
- Virtual SAN 6.0
- Virtual Volumes (VVOL)
- NFS 4.1 client
- NFS and iSCSI IPV6 support
- Storage Based Policy Management (SPBM) now available in all vSphere editions
- SIOC IOPS Reservations
- vSphere Replication
- Support for 2000 virtual machines per vCenter Server
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Yes (enhanced APD and PDL) PDL AutoRemove
vSphere uses natively integrated multi-path capability or can take advantage of vendor specific capabilities using vStorage APIs for Multipathing.
By default, ESXi provides an extensible multipathing module called the Native Multipathing Plug-In (NMP). Generally, the VMware NMP supports all storage arrays listed on the VMware storage HCL and provides a default path selection algorithm based on the array type. The NMP associates a set of physical paths with a specific storage device, or LUN. The specific details of handling path failover for a given storage array are delegated to a Storage Array Type Plug-In (SATP). The specific details for determining which physical path is used to issue an I/O request to a storage device are handled by a Path Selection Plug-In (PSP). SATPs and PSPs are sub plug-ins within the NMP module. With ESXi, the appropriate SATP for an array you use will be installed automatically. You do not need to obtain or download any SATPs.
PDL AutoRemove: Permanent device loss (PDL) is a situation that can occur when a disk device either fails or is removed from the vSphere host in an uncontrolled fashion. PDL detects if a disk device has been permanently removed. When the device enters this PDL state, the vSphere host can take action to prevent directing any further, unnecessary I/O to this device. With vSphere 5.5, a new feature called PDL AutoRemove is introduced. This feature automatically removes a device from a host when it enters a PDL state.
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Yes (SR)
XenServer uses the concept of Storage Repositories (disk containers/data stores). These SRs can be shared between hosts or dedicated to particular hosts. Shared storage is pooled between multiple hosts within a defined resource pool. All hosts in a single resource pool must have at least one shared SR in common. NAS, iSCSI (Software initiator and HBA are both supported), SAS, or FC are supported for shared storage.
|
Yes (enhanced APD and PDL) PDL AutoRemove
vSphere uses natively integrated multi-path capability or can take advantage of vendor specific capabilities using vStorage APIs for Multipathing.
By default, ESXi provides an extensible multipathing module called the Native Multipathing Plug-In (NMP). Generally, the VMware NMP supports all storage arrays listed on the VMware storage HCL and provides a default path selection algorithm based on the array type. The NMP associates a set of physical paths with a specific storage device, or LUN. The specific details of handling path failover for a given storage array are delegated to a Storage Array Type Plug-In (SATP). The specific details for determining which physical path is used to issue an I/O request to a storage device are handled by a Path Selection Plug-In (PSP). SATPs and PSPs are sub plug-ins within the NMP module. With ESXi, the appropriate SATP for an array you use will be installed automatically. You do not need to obtain or download any SATPs.
PDL AutoRemove: Permanent device loss (PDL) is a situation that can occur when a disk device either fails or is removed from the vSphere host in an uncontrolled fashion. PDL detects if a disk device has been permanently removed. When the device enters this PDL state, the vSphere host can take action to prevent directing any further, unnecessary I/O to this device. With vSphere 5.5, a new feature called PDL AutoRemove is introduced. This feature automatically removes a device from a host when it enters a PDL state.
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Shared File System
Details
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Yes (VMFS v6)
VMwares clustered file system, allowing for concurrent access of multiple hosts for live migration, file based locking (to ensure data consistency), dynamic volume resizing etc.
new in VMFS 6
Support for 4K Native Drives in 512e mode
SE Sparse Default
Automatic Space Reclamation
Support for 512 devices and 2000 paths (versus 256 and 1024 in the previous versions)
CBRC aka View Storage Accelerator
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Yes (iSCSI, FC)
Yes for XenServer 6.1 and later (XenServer 5.6 SP1 added support for boot from SAN with multi-pathing support for Fibre Channel and iSCSI HBAs)
Note: Rolling Pool Upgrade should not be used with Boot from SAN environments. For more information on upgrading boot from SAN environments see Appendix B of the XenServer 6.5.0 Installation Guide: http://bit.ly/1E33XZs
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Yes (VMFS v6)
VMwares clustered file system, allowing for concurrent access of multiple hosts for live migration, file based locking (to ensure data consistency), dynamic volume resizing etc.
new in VMFS 6
Support for 4K Native Drives in 512e mode
SE Sparse Default
Automatic Space Reclamation
Support for 512 devices and 2000 paths (versus 256 and 1024 in the previous versions)
CBRC aka View Storage Accelerator
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Yes (FC, iSCSI, FCoE and SW FCoE)
Boot from iSCSI, FCoE, and Fibre Channel boot are supported
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No
While there are several (unofficial) approaches documented, officially no flash drives are supported as boot media for XenServer 6.x.
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Yes (FC, iSCSI, FCoE and SW FCoE)
Boot from iSCSI, FCoE, and Fibre Channel boot are supported
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Yes
Boot from USB is supported
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vhd, raw disk (LUN)
XenServer supports file based vhd (NAS, local), block device-based vhd (FC, SAS, iSCSI) using a Logical Volume Manager on the Storage Repository or a full LUN (raw disk)
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Yes
Boot from USB is supported
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Virtual Disk Format
Details
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vmdk, raw disk (RDM)
VMware Virtual Machine Disk Format (vmdk) and RAW Disk Mapping (RDM) - essentially a raw disk mapped to a proxy (making it appear like a VMFS file system)
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2TB
For XenServer 6.5 the maximum virtual disk sizes are:
- NFS: 2TB minus 4GB
- LVM (block): 2TB minus 4 GB
Reference: http://bit.ly/17eNuo7
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vmdk, raw disk (RDM)
VMware Virtual Machine Disk Format (vmdk) and RAW Disk Mapping (RDM) - essentially a raw disk mapped to a proxy (making it appear like a VMFS file system)
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64TB
vSphere is increasing the maximum size of a virtual machine disk file (VMDK) from 2TB - 512 bytes to the new limit of 64TB. The maximum size of a virtual Raw Device Mapping (RDM) is also increasing, from 2TB - 512 bytes to 64TB in physical compatibility and 62TB in virtual compatibility. Virtual machine snapshots also support this new size for delta disks that are created when a snapshot is taken of the virtual machine.
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Yes (Limitations on block)
XenServer supports 3 different types of storage repositories (SR)
1) File based vhd, which is a local ext3 or remote NFS filesystems, which supports thin provisioning for vhd
2) Block device-based vhd format (SAN based on FC, iSCSI, SAS) , which has no support for thin provisioning of the virtual disk but supports thin prove for snapshots
3) LUN based raw format - a full LUN is mapped as virtual disk image (VDI) so to is only applicable if the storage array HW supports that functionality.
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64TB
vSphere is increasing the maximum size of a virtual machine disk file (VMDK) from 2TB - 512 bytes to the new limit of 64TB. The maximum size of a virtual Raw Device Mapping (RDM) is also increasing, from 2TB - 512 bytes to 64TB in physical compatibility and 62TB in virtual compatibility. Virtual machine snapshots also support this new size for delta disks that are created when a snapshot is taken of the virtual machine.
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Thin Disk Provisioning
Details
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Yes
Thin provisioning allowing for disk space saving through allocation of space based on usage (not pre-allocation).
VMFS6 - Automatic Space Reclamation
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No
There is no NPIV support for XenServer
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Yes
Thin provisioning allowing for disk space saving through allocation of space based on usage (not pre-allocation).
VMFS6 - Automatic Space Reclamation
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Yes (RDM only)
NPIV requires RDM (Raw Disk Mapping), it is not supported with VMFS volumes. NPIV requires supported switches (not direct storage attach).
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Yes - Clone on boot (new), clone, PVS, MCS
XenServer 6.2 introduced Clone on Boot
This feature supports Machine Creation Services (MCS) which is shipped as part of XenDesktop. Clone on boot allows rapid deployment of hundreds of transient desktop images from a single source, with the images being automatically destroyed and their disk space freed on exit.
General cloning capabilities: When cloning VMs based off a single VHD template, each child VM forms a chain where new changes are written to the new VM, and old blocks are directly read from the parent template. When this is done with a file based vhd (NFS) then the clone is thin provisioned. Chains up to a depth of 30 are supported but beware performance implications.
Comment: Citrixs desktop virtualization solution (XenDesktop) provides two additional technologies that use image sharing approaches:
- Provisioning Services (PVS) provides a (network) streaming technology that allows images to be provisioned from a single shared-disk image. Details: http://bit.ly/1ICMeqv
- With Machine Creation Services (MCS) all desktops in a catalog will be created off a Master Image. When creating the catalog you select the Master and choose if you want to deploy a pooled or dedicated desktop catalog from this image.
Note that neither PVS (for virtual machines) or MCS are included in the base XenServer license.
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Yes (RDM only)
NPIV requires RDM (Raw Disk Mapping), it is not supported with VMFS volumes. NPIV requires supported switches (not direct storage attach).
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No (native)
Yes (with Vendor Add-On: vCloud Suite, vRealize Automation)
VMwares virtual image sharing technology (vComposer or linked clones) is supported with VMwares virtual desktop solution (Horizon View).
This functionality had been extended to vCloud Director, vRealize Automation, but is not a functionality included in the vSphere editions without vCD.
Both Horizon View and vCD (as part of the vCloud Suites) are fee-based Add-Ons.
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No
There is no integrated (software-based) storage replication capability available within XenServer
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No (native)
Yes (with Vendor Add-On: vCloud Suite, vRealize Automation)
VMwares virtual image sharing technology (vComposer or linked clones) is supported with VMwares virtual desktop solution (Horizon View).
This functionality had been extended to vCloud Director, vRealize Automation, but is not a functionality included in the vSphere editions without vCD.
Both Horizon View and vCD (as part of the vCloud Suites) are fee-based Add-Ons.
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SW Storage Replication
Details
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Yes (vSphere Replication)
vSphere Replication is VMware’s proprietary hypervisor-based replication engine designed to protect running virtual machines from partial or complete site failures by replicating their VMDK disk files.
This version extends support for the 5 minute RPO setting to the following new data stores: VMFS 5, VMFS 6, NFS 4.1, NFS 3, VVOL and VSAN 6.5.
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IntelliCache and memory read cache
XenServer 6.5 sees the introduction of a read caching feature that uses host memory in the new 64-bit Dom0 to reduce IOPS on storage networks, improve LoginVSI scores with VMs booting up to 3x Faster. The read cache feature is available for XenDesktop & XenApp Platinum users who have an entitlement to this feature.
IntelliCache is a XenServer feature that can (only!) be used in a XenDesktop deployment to cache temporary and non-persistent operating-system data on the local XenServer host. It is of particular benefit when many Virtual Machines (VMs) all share a common OS image. The load on the storage array is reduced and performance is enhanced. In addition, network traffic to and from shared storage is reduced as the local storage caches the master image from shared storage.
IntelliCache works by caching data from a VMs parent VDI in local storage on the VM host. This local cache is then populated as data is read from the parent VDI. When many VMs share a common parent VDI (for example by all being based on a particular master image), the data pulled into the cache by a read from one VM can be used by another VM. This means that further access to the master image on shared storage is not required.
Reference: http://bit.ly/14Ko14u
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Yes (vSphere Replication)
vSphere Replication is VMware’s proprietary hypervisor-based replication engine designed to protect running virtual machines from partial or complete site failures by replicating their VMDK disk files.
This version extends support for the 5 minute RPO setting to the following new data stores: VMFS 5, VMFS 6, NFS 4.1, NFS 3, VVOL and VSAN 6.5.
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Yes (vSphere Flash Read Cache)
vSphere 5.5 introduced the vSphere Flash Read Cache that enables the pooling of multiple Flash-based devices into a single consumable vSphere construct called vSphere Flash Resource.
vSphere hosts can use the vSphere Flash Resource as vSphere Flash Swap Cache, which replaces the Swap to SSD feature previously introduced with vSphere 5.0. It provides a write-through cache mode that enhances virtual machines performance without the modification of applications and OSs.
At its core Flash Cache enables the offload of READ I/O from the shared storage to local SSDs, reducing the overall I/O requirements on your shared storage.
Documented maxima with vSphere 6.5:
- Virtual flash resource per host: 1
- Maximum cache for each virtual disk: 400GB
- Cumulative cache configured per host (for all virtual disks): 2TB
- Virtual disk size: 16TB
- Virtual host swap cache size: 4TB
- Flash devices (disks) per virtual flash resource: 8
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No
There is no specific Storage Virtualization appliance capability other than the abstraction of storage resources through the hypervisor.
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Yes (vSphere Flash Read Cache)
vSphere 5.5 introduced the vSphere Flash Read Cache that enables the pooling of multiple Flash-based devices into a single consumable vSphere construct called vSphere Flash Resource.
vSphere hosts can use the vSphere Flash Resource as vSphere Flash Swap Cache, which replaces the Swap to SSD feature previously introduced with vSphere 5.0. It provides a write-through cache mode that enhances virtual machines performance without the modification of applications and OSs.
At its core Flash Cache enables the offload of READ I/O from the shared storage to local SSDs, reducing the overall I/O requirements on your shared storage.
Documented maxima with vSphere 6.5:
- Virtual flash resource per host: 1
- Maximum cache for each virtual disk: 400GB
- Cumulative cache configured per host (for all virtual disks): 2TB
- Virtual disk size: 16TB
- Virtual host swap cache size: 4TB
- Flash devices (disks) per virtual flash resource: 8
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No (native)
Yes (with Vendor Add-On: vSAN 6.7)
VMware vSAN extend virtualization to storage with an integrated hyper-converged solution.
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Integrated StorageLink (deprecated)
XenServer 6.5 sees the retirement of the Integrated StorageLink Feature, which is line with deprecation notice given in XenServer 6.2 and detailed in the XenServer 6.5 release notes
With XenServer 6.2 Citrix announced that Integrated StorageLink (iSL) is a deprecated feature (development stopped on it and removal in a future release).
Background: XenServer 6 introduced Integrated StorageLink Capabilities. It replaces the StorageLink Gateway technology used in previous editions and removes the requirement
to run a VM with the StorageLink components. It provides access to use existing storage array-based features such as data replication, de-duplication, snapshot and
cloning. Citrix StorageLink allows to integrate with existing storage systems, gives a common user interface across vendors and talks the language of the storage array i.e. exposes the native feature set in the storage array. StorageLink also provides a set of open APIs that link XenServer and Hyper-V environments to third party backup solutions and enterprise management frameworks. There is a limited HCL for StorageLink supporting arrays. Details: http://bit.ly/1xS2J0m
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No (native)
Yes (with Vendor Add-On: vSAN 6.7)
VMware vSAN extend virtualization to storage with an integrated hyper-converged solution.
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Storage Integration (API)
Details
|
Yes (VASA, VAAI and VAMP)
VMware provides various storage related APIs in order to enhance storage functionality and integration between storage devices and vSphere.
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Basic
Virtual disks on block-based SRs (e.g. FC, iSCSI) have an optional I/O priority Quality of Service (QoS) setting. This setting can be applied to existing virtual disks using the xe CLI.
Note: Bare in mind that QoS setting are applied to virtual disks accessing the LUN from the same host. QoS is not applied across hosts in the pool!
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Yes (VASA, VAAI and VAMP)
VMware provides various storage related APIs in order to enhance storage functionality and integration between storage devices and vSphere.
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Yes (Storage IO Control )
In vSphere 6.5 Storage IO Control has been reimplemented by leveraging the VAIO framework. You will now have the ability to specify configuration details in a VM Storage Policy and assign that policy to a VM or VMDK. You can also create a Storage Policy Component yourself and specify custom shares, limits and a reservation.
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Yes (Open vSwitch) - distributed vSwitch
The Open vSwitch remains fully supported and developed with the earlier deprecation notice issued with XenServer 6.2 now rescinded within XenServer 6.5
Background: Open vSwitch is the default networking stack in XenServer 6.x.
An Open vSwitch (OVS) network flow is a match between a network packet header and an action
such as forward or drop. A typical server VM could have hundreds or more connections to clients,
and OVS needs to have a flow for each of these connections. As the number of VMs on the host
builds up, the OVS flow table in the Dom0 kernel fills and induces round-trips to the OVS userspace
process, which can degrade the network throughput to and from guests. In OVS v1.4, present in
XenServer 6.2, the flow had to have an exact match for the header. XenServer 6.5 includes the latest
version, OVS 2.1.3, which supports megaflows.
Megaflow support reduces the number of required entries in the flow table for most common
situations and improves the ability of Dom0 to handle many server VMs connected to a large
number of clients.
Details in the XenServer 6.5 vSwitch Controller Users Guide: http://bit.ly/1zLZ8NI
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Yes (Storage IO Control )
In vSphere 6.5 Storage IO Control has been reimplemented by leveraging the VAIO framework. You will now have the ability to specify configuration details in a VM Storage Policy and assign that policy to a VM or VMDK. You can also create a Storage Policy Component yourself and specify custom shares, limits and a reservation.
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Networking |
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Advanced Network Switch
Details
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Yes (vDS)
vSphere Distributed Switch (VDS) spans multiple vSphere hosts and aggregates networking to a centralized datacenter-wide level, simplifying overall network management (rather than managing switches on individual host level) allowing e.g. the port state/setting to follow the vm during a vMotion (Network vMotion) and facilitates various other advanced networking functions - including 3rd party virtual switch integration.
Each vCenter Server instance can support up to 128 VDSs, each VDS can manage up to 2000 hosts.
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Yes (incl. LACP - New)
XenServer 6.1 added the following functionality, maintained with XenServer 6.5:
- Link Aggregation Control Protocol (LACP) support: enables the use of industry-standard network bonding features to provide fault-tolerance and load balancing of network traffic.
- Source Load Balancing (SLB) improvements: allows up to 4 NICs to be used in an active-active bond. This improves total network throughput and increases fault tolerance in the event of hardware failures. The SLB balancing algorithm has been modified to reduce load on switches in large deployments.
Background:
XenServer provides support for active-active, active-passive, and LACP bonding modes. The number of NICs supported and the bonding mode supported varies according to network stack:
• LACP bonding is only available for the vSwitch, while active-active and active-passive are available for both the vSwitch and Linux bridge.
• When the vSwitch is the network stack, you can bond either two, three, or four NICs.
• When the Linux bridge is the network stack, you can only bond two NICs.
XenServer 6.1 provides three different types of bonds, all of which can be configured using either the CLI or XenCenter:
• Active/Active mode, with VM traffic balanced between the bonded NICs.
• Active/Passive mode, where only one NIC actively carries traffic.
• LACP Link Aggregation, in which active and stand-by NICs are negotiated between the switch and the server.
Reference: http://bit.ly/1E2HvQ7
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Yes (vDS)
vSphere Distributed Switch (VDS) spans multiple vSphere hosts and aggregates networking to a centralized datacenter-wide level, simplifying overall network management (rather than managing switches on individual host level) allowing e.g. the port state/setting to follow the vm during a vMotion (Network vMotion) and facilitates various other advanced networking functions - including 3rd party virtual switch integration.
Each vCenter Server instance can support up to 128 VDSs, each VDS can manage up to 2000 hosts.
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Yes (up to 32 NICs)
vSphere has integrated NIC teaming capabilities. To utilize NIC teaming, two or more network adapters must be uplinked to a virtual switch (standard or distributed).
The key advantages of NIC teaming are:
- Increased network capacity for the virtual switch hosting the team.
- Passive failover in the event one of the adapters in the team goes down
There are various NIC load balancing (e.g. based on originating port, source MAC or IP hash) and failover detection algorithms (link status, Beacon probing).
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Yes (limited for mgmt. traffic)
VLANs are supported with XenServer. To use VLANs with virtual machines use switch ports configured as 802.1Q VLAN trunk ports in combination with the XenServer VLAN feature to connect guest virtual network interfaces (VIFs) to specific VLANs (you can create new virtual networks with XenCenter and specify the VLLAN IDs). The XenServer management interfaces cannot be assigned to a XenServer VLAN via a trunk port - to place management traffic on a desired VLAN the switch ports need to be configured to perform 802.1Q VLAN tagging/untagging (native VLAN or as access mode ports). In this case the XenServer host is unaware of any VLAN configuration.
XenServer 6.1 removed a previous limitation which caused VM deployment delays when large numbers of VLANs were in use. This improvement enables administrators using XenServer 6.x to deploy hundreds of VLANs in a XenServer pool quickly.
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Yes (up to 32 NICs)
vSphere has integrated NIC teaming capabilities. To utilize NIC teaming, two or more network adapters must be uplinked to a virtual switch (standard or distributed).
The key advantages of NIC teaming are:
- Increased network capacity for the virtual switch hosting the team.
- Passive failover in the event one of the adapters in the team goes down
There are various NIC load balancing (e.g. based on originating port, source MAC or IP hash) and failover detection algorithms (link status, Beacon probing).
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Yes
Support for VLANs, VLAN tagging with distributed or standard switch. Private VLANs (sub-VLANs) are supported with the virtual distributed switch only
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No
XenServer does not support PVLANs.
Please refer to the Citrix XenServer Design: Designing XenServer Network Configurations guide for details on network design and security considerations http://bit.ly/14LW9b9
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Yes
Support for VLANs, VLAN tagging with distributed or standard switch. Private VLANs (sub-VLANs) are supported with the virtual distributed switch only
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Yes
Private VLANs (sub-VLANs) are supported with the virtual distributed switch.
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Yes (guests only)
XenServer 6.1 introduced formal support for IPv6 in XenServer guest VMs (maintained with 6.5). Customers already used it with e.g. 6.0 but the 6.1 release notes list this as new official feature: IPv6 Guest Support: enables the use of IPv6 addresses within guests allowing network administrators to plan for network growth.
Full support for IPv6 (i.e. assigning the host itself an IPv6 address) will be addressed in the future.
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Yes
Private VLANs (sub-VLANs) are supported with the virtual distributed switch.
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Yes
vSphere supports IPv6 for all major traffic types.
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SR-IOV
XenServer 6.0 provided improved SR-IOV support, maintained with v 6.5
Note that SR-IOV is supported only with SR-IOV enabled NICs listed on the XenServer Hardware
Compatibility List and only when used in conjunction with a Windows Server 2008 guest and requires Intel VT-d capable systems. Generally with SR-IOV VF, functions that require VM mobility like live migration, workload balancing, rolling pool upgrade, High Availability and Disaster Recovery are not possible.
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Yes
vSphere supports IPv6 for all major traffic types.
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Yes (SR-IOV and VMDirectPath)
vSphere 6.5 SR-IOV support for 1024 Virtual Functions.
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Yes
You can set the Maximum Transmission Unit (MTU) for a XenServer network in the New Network wizard or for an existing network in its Properties window. The possible MTU value range is 1500 to 9216.
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Yes (SR-IOV and VMDirectPath)
vSphere 6.5 SR-IOV support for 1024 Virtual Functions.
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Yes
vSphere supports jumbo frames for network traffic including iSCSI, NFS, vMotion and FT
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Yes (TSO)
TCP Segmentation Offload can be enabled, see http://bit.ly/13e9WLi
By default, Large Receive Offload (LRO) and Generic Receive Offload (GRO) are disabled on all physical network interfaces. Though unsupported, you can enable it manually http://bit.ly/14l79kp
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Yes
vSphere supports jumbo frames for network traffic including iSCSI, NFS, vMotion and FT
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Yes (TSO, NetQueue, iSCSI)
Supports TCP Segment Offloading, NetQueue (VMwares implementation of Intels VMDq and iSCSI HW offload (for a limited number of HBAs).
No TOE support (you can use TOE capable adapters in vSphere but the TOE function itself will not be used)
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Yes (outgoing)
QoS of network transmissions can be done either at the vm level (basic) by setting a ks/sec limit for the virtual NIC or on the vSwitch-level (global policies). With the DVS you can select a rate limit (with units), and a burst size (with units). Traffic to all virtual NICs included in this policy level (e.g. you can create vm groups) is limited to the specified rate, with individual bursts limited to the specified number of packets. To prevent inheriting existing enforcement the QoS policy at the VM level should be disabled.
Background:
To limit the amount of outgoing data a VM can send per second, you can set an optional Quality of Service (QoS) value on VM virtual interfaces (VIFs). The setting lets you specify a maximum transmit rate for outgoing packets in kilobytes per second.
The QoS value limits the rate of transmission from the VM. As with many QoS approaches the QoS setting does not limit the amount of data the VM can receive. If such a limit is desired, Citrix recommends limiting the rate of incoming packets higher up in the network (for example, at the switch level).
Depending on networking stack configured in the pool, you can set the Quality of Service (QoS) value on VM virtual interfaces (VIFs) in one of two places-either a) on the vSwitch Controller or b) in XenServer (using theCLI or XenCenter).
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Yes (TSO, NetQueue, iSCSI)
Supports TCP Segment Offloading, NetQueue (VMwares implementation of Intels VMDq and iSCSI HW offload (for a limited number of HBAs).
No TOE support (you can use TOE capable adapters in vSphere but the TOE function itself will not be used)
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Yes (NetIOC)
vSphere 6.x Network I/O Control (NIOC) Version 3
- Ability to reserve bandwidth at a VMNIC
- Ability to reserve bandwidth at a vSphere Distributed Switch (VDS) Portgroup
Network I/O control enables you to specify quality of service (QoS) for network traffic in your virtualized environment. NetIOC requires the use of a virtual distributed switch (vDS). It allows to prioritize network by traffic type and the creation of custom network resource pools.
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Yes (Port Mirroring)
The XenServer vSwitch has Traffic Mirroring capabilities. The Remote Switched Port Analyzer (RSPAN) policies support mirroring traffic sent or received on
a VIF to a VLAN in order to support traffic monitoring applications. Use the Port Configuration tab in the vSwitch Controller UI to configure policies that apply to the VIF ports.
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Yes (NetIOC)
vSphere 6.x Network I/O Control (NIOC) Version 3
- Ability to reserve bandwidth at a VMNIC
- Ability to reserve bandwidth at a vSphere Distributed Switch (VDS) Portgroup
Network I/O control enables you to specify quality of service (QoS) for network traffic in your virtualized environment. NetIOC requires the use of a virtual distributed switch (vDS). It allows to prioritize network by traffic type and the creation of custom network resource pools.
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Traffic Monitoring
Details
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yes (Port Mirroring)
Port mirroring is the capability on a network switch to send a copy of network packets seen on a switch port to a network-monitoring device connected to another switch port. Port mirroring is also referred to as Switch Port Analyzer (SPAN) on Cisco switches. Distributed Switch provides a similar port mirroring capability that is available on a physical network switch. After a port mirror session is configured with a destination -a virtual machine, a vmknic or an uplink port-the Distributed Switch copies packets to the destination.
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Yes (DMC)
XenServer 5.6 introduced Dynamic Memory Control (DMC) that enables dynamic reallocation of memory between VMs. This capability is maintained in 6.x.
XenServer DMC (sometimes known as 'dynamic memory optimization', 'memory overcommit' or 'memory ballooning') works by automatically adjusting the memory of running VMs, keeping the amount of memory allocated to each VM between specified minimum and maximum memory values, guaranteeing performance and permitting greater density of VMs per server. Without DMC, when a server is full, starting further VMs will fail with 'out of memory' errors: to reduce the existing VM memory allocation and make room for more VMs you must edit each VMs memory allocation and then reboot the VM. With DMC enabled, even when the server is full, XenServer will attempt to reclaim memory by automatically reducing the current memory allocation of running VMs within their defined memory ranges.
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yes (Port Mirroring)
Port mirroring is the capability on a network switch to send a copy of network packets seen on a switch port to a network-monitoring device connected to another switch port. Port mirroring is also referred to as Switch Port Analyzer (SPAN) on Cisco switches. Distributed Switch provides a similar port mirroring capability that is available on a physical network switch. After a port mirror session is configured with a destination -a virtual machine, a vmknic or an uplink port-the Distributed Switch copies packets to the destination.
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Hypervisor
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General |
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Hypervisor Details/Size
Details
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Virtual Hardware version 14
VMware developed/proprietary bare-metal hypervisor, which with vSphere 5 onwards is only available as ESXi (small foot-print without Console OS). The hypervisor itself is < 150MB. Device drivers are provided with the hypervisor (not with the Console OS or dom0/parent partition as with Xen or Hyper-V technologies).
ESX is based on binary translation (full virtualization) but also uses aspects of para-virtualization (device drivers, VMware tools and the VMI interface for para-virtualization) and supports hardware assisted virtualization aspects.
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XenServer 6.5: Xen 4.4 -based
NEW
XenServer is based on the open-source Xen hypervisor (XenServer 6.5 now runs on the Xen 4.4 hypervisor, provides GPT support and a smaller, more scalable Dom0). XenServer automatically scales the amount of memory allocated to the Control Domain (Dom0) based on the physical memory available.
XenServer uses paravirtualization and hardware-assisted virtualization, requiring either a modified guest OSs or hardware assisted CPUs (more commonly seen as its less restrictive and hardware assisted CPUs like Intel VT/AMD-V have become standard). The device drivers are provided through a 64-bit Linux-based guest (CentOS) running in a control virtual machine (Dom0). The Xen hypervisor itself is small (e.g. the download of Xen 3.4.3 including tools is 10MB). The disk footprint of XenServer varies (recommended 16GB min) mainly due to the size of the Dom0 OS (e.g. XenServer 5.6 creates 2x4GB partitions by default).
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Virtual Hardware version 14
VMware developed/proprietary bare-metal hypervisor, which with vSphere 5 onwards is only available as ESXi (small foot-print without Console OS). The hypervisor itself is < 150MB. Device drivers are provided with the hypervisor (not with the Console OS or dom0/parent partition as with Xen or Hyper-V technologies).
ESX is based on binary translation (full virtualization) but also uses aspects of para-virtualization (device drivers, VMware tools and the VMI interface for para-virtualization) and supports hardware assisted virtualization aspects.
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Host Config |
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Max Consolidation Ratio
Details
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1024 VMs
NEW
vSphere 6.7 Maximums
- 64 hosts per cluster
- 8000 VMs per cluster
- 768 CPUs
- 16 TB of RAM
- 1024 VMs per host
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1000 VMs per host
Citrix has listed the new maximum consolidation ratios for XenServer 6.5 Service Pack 1 within the published configuration limits document http://bit.ly/1NA7m6h
- Concurrent VMs per host (Windows): 1000
- Concurrent protected VMs per host with HA enabled: 500
Disclaimers are:
- The maximum number of VMs/host supported is dependent on VM workload, system load, and certain environmental factors. Citrix reserves the right to determine what specific environmental factors affect the maximum limit at which a system can function. For systems running over 500 VMs, Citrix recommends allocating 8GB RAM and 8 exclusively pinned vCPUs to dom0, and setting the OVS flow-eviction-threshold to 8192.
The maximum amount of logical physical processors supported differs by CPU. Please consult the XenServer Hardware Compatibility List for more details on the maximum amount of logical cores supported per vendor and CPU.
Each plugged VBD or plugged VIF or Windows VM reduces this number by 1
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1024 VMs
NEW
vSphere 6.7 Maximums
- 64 hosts per cluster
- 8000 VMs per cluster
- 768 CPUs
- 16 TB of RAM
- 1024 VMs per host
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768 physical
NEW
Hosts will support up to 768 physical CPUs (Dependent on hardware at launch time).
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160 (logical)
XenServer 6.5 supports up to 160 Logical CPUs (threads) e.g. 4 socket with 8 cores each and Hyper-Threading enabled = 64 logical CPUs
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768 physical
NEW
Hosts will support up to 768 physical CPUs (Dependent on hardware at launch time).
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Max Cores per CPU
Details
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unlimited
unlimited (since vSphere 5)
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unlimited
The XenServer license does not restrict the number of cores per CPU
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unlimited
unlimited (since vSphere 5)
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Max Memory / Host
Details
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16TB
NEW
vSphere 6.7 Maximums
- 64 hosts per cluster
- 8000 VMs per cluster
- 768 CPUs
- 16 TB of RAM
- 1024 VMs per host
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1TB
XenServer supports a maximum of 1TB per host, if a host has one or more 32-bit VMs running then a maximum of 128 GB RAM is supported on the host
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16TB
NEW
vSphere 6.7 Maximums
- 64 hosts per cluster
- 8000 VMs per cluster
- 768 CPUs
- 16 TB of RAM
- 1024 VMs per host
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VM Config |
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128 vCPU
128 vCPU
Maximum number of virtual CPUs configurable for the vm and presented to the guest operating system - supported numbers vary greatly with specific guest OS version, please check!
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16 (Win) / 32(Linux)
You can only specify up to 16 vCPUs using the XenCenter GUI (you can increase this for Linux guests using the command line e.g. xe vm-param-set VCPUs-max=32 uuid=...). Actual numbers vary with the guest OS version (e.g. license restrictions), see http://bit.ly/1ELdzpv for details.
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128 vCPU
128 vCPU
Maximum number of virtual CPUs configurable for the vm and presented to the guest operating system - supported numbers vary greatly with specific guest OS version, please check!
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6TB
6TB
amount of vRAM configurable in a virtual machine (presented to the guest OS)
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192GB
NEW
A maximum of 192GB is supported for guest Oss, actual number varies greatly with guest OS version so please check for specific guest support.
The maximum amount of physical memory addressable by your operating system varies. Setting the memory to a level greater than the operating system supported limit, may lead to performance issues within your guest. Some 32-bit Windows operating systems can support more than 4 GB of RAM through use of the physical address extension (PAE) mode. The limit for 32-bit PV Virtual Machines is 64GB. Please consult your guest operating system Administrators Guide and the XenServer Virtual Machine Users Guide for more details. Details here: http://bit.ly/14DILov
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6TB
6TB
amount of vRAM configurable in a virtual machine (presented to the guest OS)
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32 ports
32 ports
Virtual machine serial ports can connect to physical host port, output file, named pipes or network.
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No
You can not configure serial ports (as virtual hardware) for your VM
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32 ports
32 ports
Virtual machine serial ports can connect to physical host port, output file, named pipes or network.
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Yes (USB 1.x, 2.x and 3.x) with max 20 USB devices per vm
vSphere supports a USB (host) controller per virtual machine. USB 1.x, 2.x and 3.x supported. One USB host controller of each version 1.x, 2.x, or 3.x can be added at the same time.
A maximum of 20 USB devices can be connected to a virtual machine (Guest operating systems might have lower limits than allowed by vSphere)
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No (except mass storage)
XenServer doesn’t natively support USB passthrough of anything but mass storage devices.
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Yes (USB 1.x, 2.x and 3.x) with max 20 USB devices per vm
vSphere supports a USB (host) controller per virtual machine. USB 1.x, 2.x and 3.x supported. One USB host controller of each version 1.x, 2.x, or 3.x can be added at the same time.
A maximum of 20 USB devices can be connected to a virtual machine (Guest operating systems might have lower limits than allowed by vSphere)
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Yes (CPU, Mem, Disk, NIC, PCIe SSD)
vSphere adds the ability to perform hot-add and remove of SSD devices to/from a vSphere host.
VMware Hot add (Memory and CPU) and hot plug (NIC, disks) requires the guest OS to support these functions - please check for specific support.
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Yes (disk, NIC)
XenServer supports adding of disks and network adapters while the VM is running - hot plug requires the specific guest OS to support these functions - please check for specific support with your OS vendor.
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Yes (CPU, Mem, Disk, NIC, PCIe SSD)
vSphere adds the ability to perform hot-add and remove of SSD devices to/from a vSphere host.
VMware Hot add (Memory and CPU) and hot plug (NIC, disks) requires the guest OS to support these functions - please check for specific support.
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Graphic Acceleration
Details
|
Yes (NVIDIA vGPU)
GRID vGPU is a graphics acceleration technology from NVIDIA that enables a single GPU (graphics processing unit) to be shared among multiple virtual desktops. When NVIDIA GRID cards (installed in an x86 host) are used in a desktop virtualization solution running on VMware vSphere® 6.x, application graphics can be rendered with superior performance compared to non-hardware-accelerated environments. This capability is useful for graphics-intensive use cases such as designers in a manufacturing setting, architects, engineering labs, higher education, oil and gas exploration, clinicians in a healthcare setting, as well as for power users who need access to rich 2D and 3D graphical interfaces.
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DAS, SAS, iSCSI, NAS, FC, FCoE
XenServer data stores are called Storage Repositories (SRs), they support IDE, SATA, SCSI (physical HBA as well as SW initiator) and SAS drives locally connected, and iSCSI, NFS, SAS and Fibre Channel remotely connected.
Background: The SR and VDI abstractions allow advanced storage features such as Thin Provisioning, VDI snapshots, and fast cloning to be exposed on storage targets that support them. For storage subsystems that do not inherently support advanced operations directly, a software stack is provided based on Microsofts Virtual Hard Disk (VHD)
specification which implements these features.
SRs are storage targets containing virtual disk images (VDIs). SR commands provide operations for creating, destroying, resizing, cloning, connecting and discovering the individual VDIs that they contain.
Reference XenServer 6.5.0 Administrators Guide: http://bit.ly/1E2HvQ7
Also refer to the XenServer Hardware Compatibility List (HCL) for more details.
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Yes (NVIDIA vGPU)
GRID vGPU is a graphics acceleration technology from NVIDIA that enables a single GPU (graphics processing unit) to be shared among multiple virtual desktops. When NVIDIA GRID cards (installed in an x86 host) are used in a desktop virtualization solution running on VMware vSphere® 6.x, application graphics can be rendered with superior performance compared to non-hardware-accelerated environments. This capability is useful for graphics-intensive use cases such as designers in a manufacturing setting, architects, engineering labs, higher education, oil and gas exploration, clinicians in a healthcare setting, as well as for power users who need access to rich 2D and 3D graphical interfaces.
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Memory |
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Dynamic / Over-Commit
Details
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Yes (Memory Ballooning)
vSphere uses several memory optimization techniques, mainly to over-commit memory and reclaim unused memory: Ballooning, memory compression and transparent page sharing. Last level of managing memory overcommit is hypervisor swapping (not desired).
When physical host memory is over-committed (e.g. the host has a total of 128GB of RAM but a total of 196GB are allocated to virtual machines), the memory balloon driver (vmmemctl) collaborates with the server to reclaim pages that are considered least valuable by the guest operating system. When memory is tight (i.e. all virtual machines are requesting their maximum memory allocation to be used), the guest operating system determines which pages to reclaim and, if necessary, swaps them to its own virtual disk.
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No
XenServer does not feature any transparent page sharing algorithm.
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Yes (Memory Ballooning)
vSphere uses several memory optimization techniques, mainly to over-commit memory and reclaim unused memory: Ballooning, memory compression and transparent page sharing. Last level of managing memory overcommit is hypervisor swapping (not desired).
When physical host memory is over-committed (e.g. the host has a total of 128GB of RAM but a total of 196GB are allocated to virtual machines), the memory balloon driver (vmmemctl) collaborates with the server to reclaim pages that are considered least valuable by the guest operating system. When memory is tight (i.e. all virtual machines are requesting their maximum memory allocation to be used), the guest operating system determines which pages to reclaim and, if necessary, swaps them to its own virtual disk.
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Memory Page Sharing
Details
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Yes (Transparent Page Sharing)
vSphere uses several memory techniques: Ballooning, memory compression and transparent page sharing. Last level of managing memory overcommit is hypervisor swapping (not desired).
A good example is a scenario where several virtual machines are running instances of the same guest operating system, have the same applications or components loaded, or contain common data. In such cases, a host uses a proprietary transparent page sharing technique to securely eliminate redundant copies of memory pages. As a result, higher levels of over-commitment can be supported.
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No
There is no support for large memory pages in XenServer
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Yes (Transparent Page Sharing)
vSphere uses several memory techniques: Ballooning, memory compression and transparent page sharing. Last level of managing memory overcommit is hypervisor swapping (not desired).
A good example is a scenario where several virtual machines are running instances of the same guest operating system, have the same applications or components loaded, or contain common data. In such cases, a host uses a proprietary transparent page sharing technique to securely eliminate redundant copies of memory pages. As a result, higher levels of over-commitment can be supported.
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Yes
Large Memory Pages for Hypervisor and Guest Operating System - in addition to the usual 4KB memory pages ESX also makes 2MB memory pages available.
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Yes
Yes, XenServer supports Intel EPT and AMD-RVI, see http://bit.ly/1FYAJKl
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Yes
Large Memory Pages for Hypervisor and Guest Operating System - in addition to the usual 4KB memory pages ESX also makes 2MB memory pages available.
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HW Memory Translation
Details
|
Yes
Yes, vSphere leverages AMD RVI and Intel EPT technology for the MMU virtualization in order to reduce the virtualization overhead associated with page-table virtualization
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Yes, incl. vApp
XenServer 6 introduced the ability to create multi-VM and boot sequenced virtual appliances (vApps) that integrate with Integrated Site Recovery and High Availability. vApps can be easily imported and exported using the Open Virtualization Format (OVF) standard. There is full support for VM disk and OVF appliance imports directly from XenCenter with the ability to change VM parameters (virtual processor, virtual memory, virtual interfaces, and target storage repository) with the Import wizard. Full OVF import support for XenServer, XenConvert and VMware.
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Yes
Yes, vSphere leverages AMD RVI and Intel EPT technology for the MMU virtualization in order to reduce the virtualization overhead associated with page-table virtualization
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Interoperability |
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Yes
vCenter can export and import vm, virtual appliances and vApps stored in OVF. vApp is a container comprised of one or more virtual machines, which uses OVF to specify and encapsulate all its components and policies
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Improving
XenServer has an improving HCL featuring the major vendors and technologies but compared to e.g. VMware and Microsoft the list is somewhat limited - so check support first. Links to XenServer HCL and XenServer hardware verification test kits are here: http://hcl.xensource.com/
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Yes
vCenter can export and import vm, virtual appliances and vApps stored in OVF. vApp is a container comprised of one or more virtual machines, which uses OVF to specify and encapsulate all its components and policies
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Very Comprehensive (see link)
vSphere has a very comprehensive and well documented set of hardware components.
For compatible systems and devices see http://www.vmware.com/resources/compatibility/search.php
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Good
XenServer 6.5 Service Pack 1 support for:
- Microsoft Windows 10
- Microsoft Windows Server 2012
- Ubuntu 14.14
- SUSE Linux Enterprise Server 11 SP3, SLED 11SP3, SLES 12
- Scientific Linux 5.11, 6.6, 7.0, 7.1
- Red Hat Enterprise Linux (RHEL) 5.10, 5.11, 6.5, 6.6, 7.0, 7.1
- Oracle Enterprise Linux (OEL) 5.10, 5.11, 6.5, 6.6, 7.0, 7.1
- Oracle UEK 6.5
- CentOS 5.10, 5.11, 6.5, 6.5, 7.0, 7.1
- Debian 7.2 'Jessie'
- VSS support for Windows Server 2008R2 has been improved and reintroduced
Refer to the XenServer 6.5 Service Pack 1 Virtual Machine User Guide for details: http://bit.ly/1JdLV4R
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Very Comprehensive (see link)
vSphere has a very comprehensive and well documented set of hardware components.
For compatible systems and devices see http://www.vmware.com/resources/compatibility/search.php
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Very Comprehensive (see link)
Very comprehensive - vSphere 6.5 is compatible with various versions of: Asianux, Canonical, CentOS, Debian, FreeBSD, OS/2, Microsoft (MS-DOS, Windows 3.1, 95, 98, NT4, 2000, 2003, 2008, 2012 incl. R2, XP, Vista, Win7, 8), Netware, Oracle Linux, SCO OpenServer, SCO Unixware, Solaris, RHEL, SLES and Apple OS X server.
Details: http://www.vmware.com/resources/compatibility/search.php?action=base&deviceCategory=software
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Yes (SDK, API, PowerShell)
The Software Development Kit provides the architectural overview of the APIs and use of SDK tools provided: http://bit.ly/13eawJ2
The XenServer 6.2 management API is documented in detail here: http://bit.ly/13eaocy
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Very Comprehensive (see link)
Very comprehensive - vSphere 6.5 is compatible with various versions of: Asianux, Canonical, CentOS, Debian, FreeBSD, OS/2, Microsoft (MS-DOS, Windows 3.1, 95, 98, NT4, 2000, 2003, 2008, 2012 incl. R2, XP, Vista, Win7, 8), Netware, Oracle Linux, SCO OpenServer, SCO Unixware, Solaris, RHEL, SLES and Apple OS X server.
Details: http://www.vmware.com/resources/compatibility/search.php?action=base&deviceCategory=software
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Container Support
Details
|
Yes
vSphere Integrated Containers
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|
Yes
vSphere Integrated Containers
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Web Services API/SDK, CIM, Perl, .NET, Java SDKs, Client Plug-In API, vSphere Clip, vMA
VMware provides several public API and Software Development Kits (SDK) products. You can use these products to interact with the following areas:
- host configuration, virtualization management and performance monitoring (vSphere Web Services API provides the basis for VMware management tools - available through the vSphere Web Services SDK). VMware provides language-specific SDKs (vSphere SDKs for Perl, .NET, or Java)
- server hardware health monitoring and storage management (CIM interface compatible with the CIM SMASH specification, storage management through CIM SMI-S and OEM/IHV packaged CIM implementations)
- extending the vSphere Client GUI (vSphere Client Plug-In API)
- access and manipulation of virtual storage - VMware Virtual Disk Development Kit (VDDK with library of C functions and example apps in C++)
- obtaining statistics from the guest operating system of a virtual machine (vSphere Guest SDK is a read-only programmatic interface for monitoring virtual machine statistics)
- scripting and automating common administrative tasks (CLIs that allow you to create scripts to automate common administrative tasks. The vSphere CLI is available for Linux and Microsoft Windows and provides a basic set of administrative commands. vSphere PowerCLI is available on Microsoft Windows and has over 200 commonly-used administrative commands.
Details Here: https://communities.vmware.com/community/vmtn/developer/
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CloudStack APIs, support for AWS API
Citrix CloudPlatform uses a RESTful CloudStack API. In addition to supporting the CloudStack API, CloudPlatform supports the Amazon Web Services (AWS) API. Future cloud API standards from bodies such as the Distributed Management Task Force (DMTF) will be implemented as they become available.
Details on the CloudPlatform API here: http://bit.ly/13eaDo0
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Web Services API/SDK, CIM, Perl, .NET, Java SDKs, Client Plug-In API, vSphere Clip, vMA
VMware provides several public API and Software Development Kits (SDK) products. You can use these products to interact with the following areas:
- host configuration, virtualization management and performance monitoring (vSphere Web Services API provides the basis for VMware management tools - available through the vSphere Web Services SDK). VMware provides language-specific SDKs (vSphere SDKs for Perl, .NET, or Java)
- server hardware health monitoring and storage management (CIM interface compatible with the CIM SMASH specification, storage management through CIM SMI-S and OEM/IHV packaged CIM implementations)
- extending the vSphere Client GUI (vSphere Client Plug-In API)
- access and manipulation of virtual storage - VMware Virtual Disk Development Kit (VDDK with library of C functions and example apps in C++)
- obtaining statistics from the guest operating system of a virtual machine (vSphere Guest SDK is a read-only programmatic interface for monitoring virtual machine statistics)
- scripting and automating common administrative tasks (CLIs that allow you to create scripts to automate common administrative tasks. The vSphere CLI is available for Linux and Microsoft Windows and provides a basic set of administrative commands. vSphere PowerCLI is available on Microsoft Windows and has over 200 commonly-used administrative commands.
Details Here: https://communities.vmware.com/community/vmtn/developer/
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vCloud API
vCloud API - provides support for developers who are building interactive clients of VMware vCloud Director using a RESTful application development style.
VMware provides a comprehensive vCloud API Programming Guide. vCloud API clients and vCloud Director servers communicate over HTTP, exchanging representations of vCloud objects. These representations take the form of XML elements. You use HTTP GET requests to retrieve the current representation of an object, HTTP POST and PUT requests to create or modify an object, and HTTP DELETE requests to delete an object.
The guide is intended for software developers who are building VMware Ready Cloud Services, including interactive clients of VMware vCloud Director. The guide discusses Representational State Transfer (REST) and RESTful programming conventions, the Open Virtualization Format Specification, and VMware Virtual machine technology.
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CloudPlatform
Note: Due to the variation in actual cloud requirements, different deployment model (private, public, hybrid) and use cases (IaaS, PaaS etc) the matrix will only list the available products and capabilities. It will not list evaluations (green, amber, red) rather than providing the information that will help you to evaluate it for YOUR environment.
After the acquisition of Cloud.com in July 2011, Citrix has centered its cloud capabilities around its CloudPlatform suite.
Citrix CloudPlatform (latest release 4.3.0.2) powered by Apache CloudStack - is an open source cloud computing platform that pools computing resources to build public, private, and hybrid Infrastructure as a Service (IaaS) clouds. CloudPlatform manages the network, storage, and compute nodes that make up a cloud infrastructure. Use CloudPlatform to deploy, manage, and configure cloud computing environments.
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vCloud API
vCloud API - provides support for developers who are building interactive clients of VMware vCloud Director using a RESTful application development style.
VMware provides a comprehensive vCloud API Programming Guide. vCloud API clients and vCloud Director servers communicate over HTTP, exchanging representations of vCloud objects. These representations take the form of XML elements. You use HTTP GET requests to retrieve the current representation of an object, HTTP POST and PUT requests to create or modify an object, and HTTP DELETE requests to delete an object.
The guide is intended for software developers who are building VMware Ready Cloud Services, including interactive clients of VMware vCloud Director. The guide discusses Representational State Transfer (REST) and RESTful programming conventions, the Open Virtualization Format Specification, and VMware Virtual machine technology.
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Extensions
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Cloud |
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VMware Cloud Foundation
VMware Cloud Foundation is the unified SDDC platform that brings together VMware’s vSphere, vSAN and NSX into a natively integrated stack to deliver enterprise-ready cloud infrastructure for the private and public cloud.
https://www.vmware.com/products/cloud-foundation.html
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Citrix Desktop Virtualization (XenDesktop & XenApp 7.6 - NEW; ViaB; associated products)
Citrix is by many perceived to own the most comprehensive portfolio for desktop virtualization alongside with the largest overall market share.
Citrixs success in this space is historically based on its Terminal Services-like capabilities (Hosted SHARED Desktops i.e. XenApp aka Presentation Server) but Citrix has over time added VDI (Hosted Virtual Desktops), mobility management (XenMobile), networking (NetScaler), cloud for Service Providers hosting desktop/apps (CloudPlatform) and other comprehensive capabilities to its portfolio (separate fee-based offerings).
Citrixs FlexCast approach promotes the any type of virtual desktop to any device philosophy and facilitates the use of different delivery technologies (e.g. VDI, application publishing or streaming, client hypervisor etc.) depending on the respective use case (so not a one fits all approach).
XenDesktop 7.x history:
- Citrixs announcement of Project Avalon in 2011 promised the integration of a unified desktop / application virtualization capability into its CloudPlatform product. This was then broken up into the Excalibur Project (unifying XenDesktop and XenApp in the XenDesktop 7.x product) and the Merlin Release aiming to provide multi-tenant clouds to manage virtual desktops and applications.
- XenDesktop 7.1 added support for Windows Server 2012 R2 and Windows 8.1, and new Studio configuration of server-based graphical processing units (GPUs) considered an essential hardware component for supporting virtualized delivery of 3D professional graphics applications.
- In Jan 2014 Citrix announced that XenApp is back as product name, rather than using XenDesktop to refer to VDI as well as desktop/application publishing capabilities, also see http://gtnr.it/14KYg4b
- With XenDesktop 7.5 Citrix announced the capability to provision application and or desktop workloads to public and or private cloud infrastructures (Citrix CloudPlatform, Amazon and (later) Windows Azure. Wake-on-LAN capability has been added to Remote PC Access and AppDNA is now included in the product.
-With XenDesktop 7.6 includes new features like: session prelaunch and session linger; support for unauthenticated (anonymous) users and connection leasing makes recently used applications and desktops available even when the Site database in unavailable.
VDI in a Box: Citrix also has VDI in a Box (ViaB) offering (originating in the Kaviza acquisition) - a simple to deploy, easy to manage and scale VDI solution targeting smaller deployments and limited use cases.
In reality ViaB box scales to larger (thousaunds of users) environments but has (due to its simplified nature and product positioning) restricted use cases compared to the full XenDesktop (There is no direct migration path between ViaB and XenDesktop). ViaB can for instance not provide advanced Hosted Shared Desktops (VDI only), no advanced graphics capabilities (HDX3DPro), has limited HA for fully persistent desktops, no inherent multi-site management capabilities.
Overview here: http://bit.ly/1fXeA38
Recommended Read for VDI Comparison (Ruben Spruijts VDI Smackdown): http://www.pqr.com/downloadformulier?file=VDI_Smackdown.pdf
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VMware Cloud Foundation
VMware Cloud Foundation is the unified SDDC platform that brings together VMware’s vSphere, vSAN and NSX into a natively integrated stack to deliver enterprise-ready cloud infrastructure for the private and public cloud.
https://www.vmware.com/products/cloud-foundation.html
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Desktop Virtualization |
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VMware Horizon 7 (Vendor Add-On)
VMware Horizon 7
Deliver virtual or hosted desktops and applications through a single platform with VMware Horizon 7
http://www.vmware.com/products/horizon.html
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no
There is no specific Storage Virtualization appliance capability other than the abstraction of storage resources through the hypervisor.
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VMware Horizon 7 (Vendor Add-On)
VMware Horizon 7
Deliver virtual or hosted desktops and applications through a single platform with VMware Horizon 7
http://www.vmware.com/products/horizon.html
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1 |
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vSAN 6.7 (Vendor Add-On)
VMware vSAN 6.7 extend virtualization to storage with an integrated hyper-converged solution.
http://www.vmware.com/products/virtual-san.html
comparison: https://www.whatmatrix.com/comparison/SDS-and-HCI
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Vendor Add-On: XenDesktop
EdgeSight, Director
The performance monitoring and trouble shooting aspect of Application Management in the context of Citrix is mostly applicable to XenDesktop 7 Director and XenDesktop 7 EdgeSight
- Desktop Director is a real-time web tool, used primarily for the Help Desk agents. In XenDesktop 7, Directors new troubleshooting dashboard provides the real-time health monitoring of your XenDesktop 7 site.
- In XenDesktop 7, EdgeSight provides two key features, performance management and network analysis.
With XenDesktop 7, Director (the real-time assessment and troubleshooting tool is included in all XenDesktop 7 editions.
The new EdgeSight features are included in both XenApp and XenDesktop Platinum editions entitlements however these features are based on the XenDesktop 7 platform. The environment must be XenDesktop 7 in order to leverage the new Director and EdgeSight features.
EdgeSight network analysis also requires NetScaler Enterprise or Platinum edition. With NetScaler Enterprise, real-time data for the last 60 minutes is provided. NetScaler Platinum edition has an unlimited data retention. To summarize,
How do you get it?
With XenDesktop 7, Director is included in all XenDesktop 7 editions. The new EdgeSight features are included in both XenApp and XenDesktop Platinum editions entitlements however these features are based on the XenDesktop 7 platform.
- All editions: Director - real-time monitoring and basic troubleshooting (up to 7 days of data)
- XD7 Platinum: EdgeSight performance management feature - includes #1 + historical monitoring (up to a full year of data through the monitoring SQL database)
- XD7 Platinum + NetScaler Enterprise: EdgeSight performance management and network analysis - includes #2 plus 60 mins. of network data
- XD7 Platinum + NetScaler Platinum: EdgeSight performance management and network analysis - includes #2 plus unlimited network data
http://bit.ly/17toPr8
Citrix EdgeSight is a performance and availability management suite for XenApp, Presentation Server, XenDesktop and endpoint systems (through agents running on physical systems or virtualized platforms). Citrix EdgeSight monitors applications, sessions, devices, and the network in real time. Details here: http://support.citrix.com/article/CTX124092
EdgeSight for NetScaler is an agent-less solution which provides real-time user performance monitoring specifically for web applications based upon actual user experience (response time). It provides both real-time and historical views to proactively identify potential problems. (Citrix NetScaler is an application switch - a physical or virtual appliance - that intelligently distributes, optimizes, and secures network traffic for Web applications. Features include load balancing, compression, Secure Sockets Layer (SSL) offload, a built-in application firewall, and dynamic content caching.) Details here: http://support.citrix.com/article/CTX121310
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vSAN 6.7 (Vendor Add-On)
VMware vSAN 6.7 extend virtualization to storage with an integrated hyper-converged solution.
http://www.vmware.com/products/virtual-san.html
comparison: https://www.whatmatrix.com/comparison/SDS-and-HCI
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2 |
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Application Management
Details
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App Volumes
App Volumes is a portfolio of application and user management solutions for Horizon, Citrix XenApp and XenDesktop, and RDSH virtual environments.
https://www.vmware.com/products/appvolumes.html
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Vendor Add-Ons: NetScaler Gateway, App Firewall, CloudBridge
NetScaler provides various (network) security related capabilities through e.g.
- NetScaler Gateway: secure application and data access for Citrix XenApp, Citrix XenDesktop and Citrix XenMobile)
- NetScaler AppFirewall: secures web applications, prevents inadvertent or intentional disclosure of confidential information and aids in compliance with information security regulations such as PCI-DSS. AppFirewall is available as a standalone security appliance or as a fully integrated module of the NetScaler application delivery solution and is included with Citrix NetScaler, Platinum Edition.
Details here: http://bit.ly/17ttmKk
CloudBridge:
Initially marketed under NetScaler CloudBridge, Citrix CloudBridge provides a unified platform that connects and accelerates applications, and optimizes bandwidth utilization across public cloud and private networks.
CloudBridge encrypts the connection between the enterprise premises and the cloud provider so that all data in transit is secure.
http://bit.ly/17ttSYA
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App Volumes
App Volumes is a portfolio of application and user management solutions for Horizon, Citrix XenApp and XenDesktop, and RDSH virtual environments.
https://www.vmware.com/products/appvolumes.html
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3 |
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NSX (Vendor Add-On)
VMware NSX is the network virtualization platform for the Software-Defined Data Center.
http://www.vmware.com/products/nsx.html
NSX embeds networking and security functionality that is typically handled in hardware directly into the hypervisor. The NSX network virtualization platform fundamentally transforms the data center’s network operational model like server virtualization did 10 years ago, and is helping thousands of customers realize the full potential of an SDDC.
With NSX, you can reproduce in software your entire networking environment. NSX provides a complete set of logical networking elements and services including logical switching, routing, firewalling, load balancing, VPN, QoS, and monitoring. Virtual networks are programmatically provisioned and managed independent of the underlying hardware.
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Workflow Studio (incl.)
Workflow Studio is included with this license and provides a graphical interface for workflow composition in order to reduce scripting. Workflow Studio allows administrators to tie technology components together via workflows. Workflow Studio is built on top of Windows® PowerShell and Windows Workflow Foundation. It natively supports Citrix products including XenApp, XenDesktop, XenServer and NetScaler.
Available as component of XenDesktop suite, Workflow Studio was retired in XenDesktop 7.x
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NSX (Vendor Add-On)
VMware NSX is the network virtualization platform for the Software-Defined Data Center.
http://www.vmware.com/products/nsx.html
NSX embeds networking and security functionality that is typically handled in hardware directly into the hypervisor. The NSX network virtualization platform fundamentally transforms the data center’s network operational model like server virtualization did 10 years ago, and is helping thousands of customers realize the full potential of an SDDC.
With NSX, you can reproduce in software your entire networking environment. NSX provides a complete set of logical networking elements and services including logical switching, routing, firewalling, load balancing, VPN, QoS, and monitoring. Virtual networks are programmatically provisioned and managed independent of the underlying hardware.
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Workflow / Orchestration
Details
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vRealize Orchestrator
vRealize Orchestrator is included with vCenter Server Standard and allows admins to capture often executed tasks/best practices and turn them into automated workflows (drag and drop) or use out of the box workflows.
http://www.vmware.com/products/vrealize-orchestrator.html
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Integrated Site Recovery (incl.)
XenServer 6 introduced the Integrated Site Recovery (maintained in 6.5), utilizing the native remote data replication between physical storage arrays and automates the recovery and failback capabilities. The new approach removes the Windows VM requirement for the StorageLink Gateway components and it works now with any iSCSI or Hardware HBA storage repository (rather only the restricted storage options with StorageLink support). You can perform failover, failback and test failover. You can configure and operate it using the Disaster Recovery option in XenCenter. Please note however that Site Recovery does NOT interact with the Storage array, so you will have to e.g. manually break mirror relationships before failing over. You will need to ensure that the virtual disks as well as the pool meta data (containing all the configuration data required to recreate your vims and vApps) are correctly replicated to your secondary site.
Note: Citrix strongly recommends using the XenServer 6.x Disaster Recovery feature, as the legacy Metadata Backup, Restore and Update mechanism (accessible via the XenServer host console) will be deprecated in a future XenServer release. Citrix advises customers using the legacy mechanism to migrate to the new, integrated feature. [CA-65906]
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vRealize Orchestrator
vRealize Orchestrator is included with vCenter Server Standard and allows admins to capture often executed tasks/best practices and turn them into automated workflows (drag and drop) or use out of the box workflows.
http://www.vmware.com/products/vrealize-orchestrator.html
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Site Recovery Manager (Vendor Add-On)
VMware Site Recovery Manager
Perform frequent non-disruptive testing to ensure IT disaster recovery predictability and compliance. Achieve fast and reliable recovery using fully automated workflows and complementary Software-Defined Data Center (SDDC) solutions.
http://www.vmware.com/products/site-recovery-manager.html
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Vendor Add-On: CloudPortal Business Manager, CloudStack Usage Server (Fee-Based Add-Ons)
Citrixs CloudPortal product line offers CloudPortal Business Manager - a business operations suite that works in conjunction with IAAS clouds running on Citrix CloudPlatform allowing to meter and automate billing and payment processing for services consumed within your cloud.
http://bit.ly/1w9309R
- Citrixs CloudStack contains usage server a separately-installed component that provides aggregated usage records which can be used to create billing integration for CloudStack metrics.
- Also , the workload balancing engine with XenServer 5.6 FP1 introduced support for simple chargeback and reporting. The chargeback report includes, amongst other data, the following: the name of the VM, and uptime as well as usage for storage, CPU, memory and network reads/writes. You can use the Chargeback Utilization Analysis report to determine what percentage of a resource (such as a physical server) a specific department within your organization used.
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Site Recovery Manager (Vendor Add-On)
VMware Site Recovery Manager
Perform frequent non-disruptive testing to ensure IT disaster recovery predictability and compliance. Achieve fast and reliable recovery using fully automated workflows and complementary Software-Defined Data Center (SDDC) solutions.
http://www.vmware.com/products/site-recovery-manager.html
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vRealize Business (Vendor Add-On)
VMware vRealize Business Enterprise is an IT financial management (ITFM) tool that provides transparency and control over the costs and quality of IT services, enabling the CIO to align IT with the business and to accelerate IT transformation.
http://www.vmware.com/products/vrealize-business.html
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NetScaler Gateway, AppFirewall, Branch Repeater, 1000v, CloudBridge (Fee-Based Add-Ons)
Citrix has been greatly expanding its network related capabilities. They sit typically under the umbrella of the NetScaler family but frequent product name changes and repackaging makes it often difficult to keep track.
- NetScaler for SDN: unifying L4-7 network services into an application control layer and integrating this application control with existing transport networks and emerging software defined network (SDN) technologies
- NetScaler Gateway (formerly Access Gateway): secure (VPN) application and data access for Citrix XenApp, Citrix XenDesktop and Citrix XenMobile
- NetScaler Branch Repeater: WAN optimization solution that accelerates, controls and optimizes desktops, applications, multimedia for branch and mobile users (Branch Repeater is merging with the Citrix CloudBridge product family)
- NetScaler AppFirewall: secures web applications, prevents inadvertent or intentional disclosure of confidential information and aids in compliance with information security regulations such as PCI-DSS. AppFirewall is available as a standalone security appliance or as a fully integrated module of the NetScaler application delivery solution and is included with Citrix NetScaler, Platinum Edition.
- NetScaler 1000V: NetScaler is engineered to seamlessly and uniquely integrate with the core Nexus 7000 and the virtual Nexus 1000V fabrics.
NetScaler is available as physical appliance and software-based virtual appliances in a range of editions:
- NetScaler MPX appliances are physical network appliances that offer up to 120 Gbps performance.
- NetScaler SDX is a high-density consolidation platform that combines Xen-based virtualization with the architecture of NetScaler MPX to run up to 40 NetScaler instances simultaneously
- NetScaler VPX virtual appliances run as virtual machines (VMs)
Editions available include Standard, Enterprise and Platinum.
http://bit.ly/17twoy5
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vRealize Business (Vendor Add-On)
VMware vRealize Business Enterprise is an IT financial management (ITFM) tool that provides transparency and control over the costs and quality of IT services, enabling the CIO to align IT with the business and to accelerate IT transformation.
http://www.vmware.com/products/vrealize-business.html
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Network Extensions
Details
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NSX (Vendor Add-on)
VMware NSX is the network virtualization platform for the Software-Defined Data Center.
http://www.vmware.com/products/nsx.html
NSX embeds networking and security functionality that is typically handled in hardware directly into the hypervisor. The NSX network virtualization platform fundamentally transforms the data center’s network operational model like server virtualization did 10 years ago, and is helping thousands of customers realize the full potential of an SDDC.
With NSX, you can reproduce in software your entire networking environment. NSX provides a complete set of logical networking elements and services including logical switching, routing, firewalling, load balancing, VPN, QoS, and monitoring. Virtual networks are programmatically provisioned and managed independent of the underlying hardware.
|
|
NSX (Vendor Add-on)
VMware NSX is the network virtualization platform for the Software-Defined Data Center.
http://www.vmware.com/products/nsx.html
NSX embeds networking and security functionality that is typically handled in hardware directly into the hypervisor. The NSX network virtualization platform fundamentally transforms the data center’s network operational model like server virtualization did 10 years ago, and is helping thousands of customers realize the full potential of an SDDC.
With NSX, you can reproduce in software your entire networking environment. NSX provides a complete set of logical networking elements and services including logical switching, routing, firewalling, load balancing, VPN, QoS, and monitoring. Virtual networks are programmatically provisioned and managed independent of the underlying hardware.
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