Last month at Microsoft WPC in Toronto, there was lots of buzz about Windows Server 2012. And I’m sure you can tell Unitrends is excited about it too! I came across this great white paper comparing Server 2012 to VMware version, so I thought I’d share some highlights and give you a link to the entire download.
I know VMware is still the big dog in the virtualization space, but we see Microsoft market share growing at exponential rates, and we believe Server 2012 is going to explode this growth.

Feature Windows Server 2012 Hyper-V VMware ESXi 5.0 VMware vSphere 5.0 Enterprise Plus
Logical Processors 320 160 160
Host Physical Memory 4TB 32GB 2TB
Virtual CPUs 2048 2048 2048
Virtual CPUs 64 8 32
Memory 1TB 32GB 1TB
VM Active VMs per host 1024 512 512
Guest NUMA Yes Yes Yes
Cluster Max nodes 64 N/A 32
Max VMs 4000 N/A 3000
Virtual fiber channel Yes Yes Yes
3rd party MPIO Yes No Yes (VAMP)
Native 4k disk support Yes No No
Max virtual disk size 64TB VHDX 2TB VMDK 2TB VMDK
Max pass-through disk size Varies 64TB RDM 64TB RDM
Offloaded data transfer Yes No Yes (VAAI)
Dynamic Memory Yes Yes Yes
Resource Metering Yes – included Yes – licensed Yes – licensed
QoS Yes No Yes
DCB Yes Yes Yes

Figure 1 Hypervisor comparison[1]

Feature Windows Server 2012 Hyper-V Windows Server 2008 R2 SP1 Hyper-V
Logical Processors 320 64
Host Physical Memory 4TB 1TB
Virtual CPUs 2048 512
Virtual CPUs 64 4
Memory 1TB 64GB
VM Active VMs per host 1024 384
Guest NUMA Yes No

Figure 2 Server 2012 vs Server 2008 R2 features


[1] Microsoft: Why Hyper-V? Competitive Advantages of Windows Server 2012 RC Hyper-V Over VMware vSphere 5.0


As you know, Unitrends Enterprise Backup is fully integrated with Hyper-V:

–        Runs on Hyper-V host as a deployed VM
–        Protects Hyper-V VM’s

  • Incremental forever strategies as well as other
  • Point-in-time recovery
  • Granular file-level recovery from block-level backups
  • Unified agent or agentless protection
  • Application awareness for MS SQL and Exchange (VSS compliant)

And – you can protect up to 4 VM’s forever for free!


    1. Dane – Thank you for the feedback, and for reading our blog! Can you expand upon your comment? If I’ve posted some incorrect information, I’d like to correct it. Thanks again!

Comments are closed.

About Unitrends

Unitrends increases uptime, productivity and confidence in a world in which IT professionals must do more with less. Unitrends leverages high-availability hardware and software engineering, cloud economics, enterprise power with consumer-grade design, and customer-obsessed support to natively provide all-in-one enterprise backup and continuity. The result is a “one throat to choke” set of offerings that allow customers to focus on their business rather than backup.