Virtualization Comparison


Proxmox VE VMware vSphere Windows Hyper-V Citrix XenServer
Note: This list is not complete and work in progress. Facts could change from release to release. It provides a very rough overview about some differences and major features.     
Guest operating system support
Windows and Linux (KVM)
Other operating systems are known to work and are community supported
(OpenVZ supports Linux only)
Windows, Linux, UNIX Modern Windows OS,
Linux support is limited
Most Windows OS, Linux support is limited
Open Source yes no no yes
OpenVZ container (known as OS Virtualization) yes no no no
Single-view for Mangagement (centralized control) yes
Yes, but requires dedicated management server (or VM)
Yes, but requires dedicated
management server (or VM)
Simple Subscription Structure Yes, one subscription pricing,
all features enabled
no no no
High Availability yes yes Requires Microsoft Failover clustering, limited guest OS support yes
Live VM snapshots: Backup a running VM yes yes limited yes
Bare metal hypervisor yes yes yes yes
Virtual machine live migration yes yes yes yes
Max. RAM and CPU per Host 160 CPU/2 TB Ram 160 CPU/2 TB Ram 64 CPU/1 TB Ram ?

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