Product : Dell EMC, VxFlex OS [SDS]/3.0, Enterprise
Feature : Hypervisor Deployment, Virtualization, Workload Support
Content Owner:  Herman Rutten
vSphere: Virtual Storage Controller + kernel module
Hyper-V/KVM: OS Drivers and packages
VMware vSphere: The VxFlex OS Virtual Machine (SVM) is deployed as a pre-configured Virtual Machine on top of each server that acts as a part of the VxFlex OS storage solution and commits its internal storage to the shared resource pool. The Virtual Storage Controller (VSC) has direct access to the physical disks, so the hypervisor is not impeding the I/O flow.

Hyper-V/KVM: The VxFlex OS components can be installed and configured on multiple nodes from one central server via a web client by using VxFlex OS Installation Manager (IM). IM has a REST API that enables install, extend, and uninstall functionalities.

Kernel Integrated, Virtual Controller and VIB are each distributed architectures, having one active component per virtualization host that work together as a group. All three architectures are capable of delivering a complete set of storage services and good performance. Kernel Integrated solutions reside within the protected lower layer, VIBs reside just above the protected kernel layer, and Virtual Controller solutions reside in the upper user layer. This makes Virtual Controller solutions somewhat more prone to external actions (eg. most VSCs do not like snapshots). On the other hand Kernel Integrated solutions are less flexible because a new version requires the upgrade of the entire hypervisor platform. VIBs have the middle-ground, as they provide more flexibility than kernel integrated solutions and remain relatively shielded from the user level.
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