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60%
86%
58%
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Pros
  • + Cloud leader with the most extensive range of services
  • + Mature services with good compliance coverage
  • + Huge number of 3rd party integrations
  • + Broad range of services
  • + Good hybrid capabilities for Microsoft based environments
  • + Competitive priced fully featured IAAS offerings
  • + Good datacentre coverage across Asia Pacific
Cons
  • - Evolving hybrid strategy based around VMware partnership
  • - Availability zone rollout still largely in preview.
  • - Limited European and US datacentre footprint
User Reviews
Details (by section) Expand All Data
General
60%
86%
58%
Content
Content Creator
Ronald van Vugt
Marius Sandbu
Ephraim Baron
Overview
Amazon Elastic Compute Cloud (Amazon EC2) is a web service that provides secure, resizable compute capacity in the cloud. It is designed to make web-scale cloud computing easier for developers. Amazon EC2 reduces the time required to obtain and boot new server instances to minutes, allowing you to quickly scale capacity, both up and down, as your computing requirements change. Amazon EC2 changes the economics of computing by allowing you to pay only for capacity that you actually use.
Microsoft Azure is a cloud computing service delivered through a global network of Microsoft-managed data centers.
Alibaba Cloud Elastic Compute Service (ECS) provides fast memory and the latest Intel CPUs to help you achieve faster results with low latency to power your cloud applications.
Management
60%
86%
58%
Interfaces
UI / API / CL / SDK
Webbased UI, API Available, CLI Available for Windows/Mac/Linux, SDK Available for different platforms
Webbased UI, Powershell, API Available, CLI Available for Windows/Mac/Linux, SDK Available for different platforms
UI, API, CLI, SDK
Common API service keys
AWS Users can create their own API Access keys; these keys can be shared
Azure Users can create their own API Access keys; these keys can be shared
Each Alibaba Cloud user can create multiple access key/secret key pairs
Monitoring
General Service monitoring
Every EC2 instance includes the following service quality services with a frequency of 1 minute: StatusCheckFailed, StatusCheckFailed_Instance, StatusCheckFailed_System
Every Azure Compute Instances can have basic service monitoring such as CPU, Memory and Disk utilization
Cloud Monitor
VM Service monitoring
Every EC2 instance sends basic metrics to CloudWatch every five-minutes. More metrics and one-minute monitoring are available at cost.
Every Azure instance sends basic metrics to Azure Monitor. More metrics and information can be gathered using OMS
The OSS monitoring service details metric data, including basic system operation statuses, performance, and metering. It also provides a custom alarm service to track requests, analyze usage, collect statistics on business trends, and promptly discover and diagnose system problems.
Actions / Event logging
Logging for EC2 instances is possible with the service CloudWatch Logs
Log Analytics with OMS or using Azure Monitor
The alarm rule page is where you can view, modify, activate, deactivate, and delete alarm rules related to OSS monitoring alarms.
Admin
Identity & Access Management
AWS Identity and Access Management (IAM)
Azure Active Directory
Alibaba Cloud Resource Access Management (RAM) is an identity and access control service which enables you to centrally manage your users (including employees, systems or applications) and securely control their access to your resources through permission levels.
Multi factor authentication support
MFA support for Admins
Users can create, bind, unbind, and delete virtual multi-factor authentication devices.
Granular Access Control
Using AWS Identity and Access Management (IAM) a very granular access control is possible. The default for every user and role is no access; you have to define every access control.
Resource Groups and RBAC
Supports role-based access control
Control
VM Billing per min / hr
Pay-as-you-go, reserved instances for one or three years, scheduled instances for one year, spot instances
Pay-as-you-go, CSP, EA, Per minute billing
On-demand pricing by the hour and by the month
Compute VM
60%
86%
58%
VM
VM micro (below 1 vCPU)
EC2 instances nano, micro, small
ecs.n1.tiny
VM Small (up to 8 vCPU)
EC2 instances medium, large, xlarge,
ecs.c1.large and ecs.n1.xlarge series
VM Medium (up to 16 vCPU)
EC2 instances 2xlarge
ecs.c2.large and ecs.n1.3xlarge
VM Large (up to 32 vCPU)
EC2 instances 4xlarge
ecs.n1.7xlarge and ecs.sn1.7xlarge
VM XLarge (up to 64 vCPU 128GB RAM)
EC2 instances 10xlarge
largest instance is 56 vCPU
VM XXLarge (up to 128 vCPU 2TB RAM)
EC2 instance 32xlarge
GPU VM Large (up to 32 vCPU)
It is possible to add a GPU to every current generation EC2 instance
ecs.gn5-c28g1.14xlarge
GPU VM XLarge (up to 64 vCPU 128GB RAM)
It is possible to add a GPU to every current generation EC2 instance
largest instance is 56 vCPU
GPU VM XXLarge (up to 128 vCPU 2TB RAM)
It is possible to add a GPU to every current generation EC2 instance
GPU types
Yes, with up to 16 NVIDIA Tesla® K80 GPUs, 192GB of total video memory, 40 thousand parallel processing cores yielding 70 teraflops of single precision floating point performance and over 23 teraflops of double precision floating point performance using P2 EC2 instances
NVIDIA K80, M60, P100
Nvidia Tesla P100 GPU
Custom VM size
Defined disk IOPS
EBS Optimized instances provided dediated storage network
Yes to a certain degree
Users can choose SSD storage, but they cannot specify IOPS
SR-IOV support
Supported on some instance types
Yes, Accelerated Network
No native SR-IOV support
Network speeds
Low, moderate, high, 10Gbps, 20Gbps.
Depending of the instance type from 450 Mbit until 20 Gbit
Low, Moderate, High, RDMA
Based on selected network bandwidth peak between
Add virtual NIC
All instances in a VPC can add 1 until 14 virtual NICs, depending of the instance type (this is not possible in the EC2-Classic platform, but this platform is not recommended)
No. Can add multi-queue for NICs
Attached / detach block storage
It is possible to detach block storage from an unmounted volume on a EC2 instance and attach block storage to an EC2 instance
Yes, including Shared Block Storage
Virtual dedicated cloud
Every EC2 instance will be part of a VPC (Virtual Private Cloud)
Yes Virtual Network
Alibaba Cloud Virtual Private Cloud (VPC) is an isolated cloud network built for private usage.
IP reassignment
Possible with Elastic IP Addresses
Only Elastic Ips
Image
Manual snapshots image
Can create Amazon Machine Image (AMI) from EC2 instance
Can create system image
Scheduled snapshot image
Not available as native service
Not available as native service
Scheduled tasks are supported, but not for VM image
API / CLI Snapshot image
Available
Scheduled tasks are supported, but not for VM image
Make image public / marketplace
AWS Marketplace is available to publish and sell application images
Yes Azure Marketplace
Only through Marketplace
VM import
You can import Windows and Linux VMs that use VMware ESX or Workstation, Microsoft Hyper-V, and Citrix Xen virtualization formats.
Yes CLI or UI
Supports RAW and VHD format
VM export
you can export previously imported EC2 instances to VMware ESX, Microsoft Hyper-V or Citrix Xen formats.
Must request for export function to be whitelisted
O/S
Windows
Amazon EC2 currently supports a variety of operating systems including: Amazon Linux, Ubuntu, Windows Server, Red Hat Enterprise Linux, SUSE Linux Enterprise Server, Fedora, Debian, CentOS, Gentoo Linux, Oracle Linux, and FreeBSD. 
Microsoft Azure currently supports a variety of operating systems including: Ubuntu, Windows Server, Red Hat Enterprise Linux, SUSE Linux Enterprise Server, Fedora, Debian, CentOS, Gentoo Linux, Oracle Linux, and FreeBSD. 
Windows Server 2008 and 2012, Standard, Data Center, and Enteprise, English and Chinese
Linux
Amazon EC2 currently supports a variety of operating systems including: Amazon Linux, Ubuntu, Windows Server, Red Hat Enterprise Linux, SUSE Linux Enterprise Server, Fedora, Debian, CentOS, Gentoo Linux, Oracle Linux, and FreeBSD.
Microsoft Azure currently supports a variety of operating systems including: Ubuntu, Windows Server, Red Hat Enterprise Linux, SUSE Linux Enterprise Server, Fedora, Debian, CentOS, Gentoo Linux, Oracle Linux, and FreeBSD. 
CentOS, Ubuntu, Debian, FreeBSD, SUSE, and Alibaba Linux as well as CoreOS
Bring your own OS
Yes, you can bring your own Microsoft license
Yes, you can bring your own Microsoft license using HUB
Control
Resize existing VM
Resizing of a VM which is EBS backed supported
VM Live Migration
If a host fails and the EC2 instance uses EBS, it is possible to start the EC2 instance on another host manually or automatically with monitoring and scripting; if an EC2 instance is installed on instance store and de host fails, the EC2 instance is lost
On host failure the vm will be auto migrated to a new host (guest monitor/restart also available)
metadata
Accomplished using tags
Limited to pre-defined metadata types
Parking
Provision in less than 5 mins
Provision consistent spec
Consistent VM configs available 
Instance generation types include specific CPU information
Reserved instances
Monthly subscription option only
Spot instances
Yes, Azure Low Priority VMs
Dedicated host (Single tenant)
VM to host affinity (network optimised)
Available using a placement group
Only for containers
VM to host anti-affinity
Yes, Availability Groups
Autoscaling VMs (within AZ)
Available using an auto scaling group
Autoscaling across AZs/Regions
Autoscaling is possible across AZs, but not across Regions
Using Server Load Balancing
Block storage
Local HDD
Available (instance store on magnetic disks and for some instance types on SSD disks)
Yes, Standard Managed Disk or Standard Storage
Basic Cloud Disk
SSD HDD
Available (instance store on magnetic disks and for some instance types on SSD disks)
Yes, Premium Storage
SSD Cloud Disk
SAN HDD
AWS offers Elastic Block Storage (EBS) as SAN-style block storage
SSD Cloud Server
Encryption at rest
Available for both instance store and EBS volumes
For object storage
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