Friday, September 30, 2011

Hyper-V 3.0 is full of win!

There has been a lot of movement in the virtualization space recently, what with the release of vSphere 5 and Microsoft giving us a sneak peek at the upcoming Hyper-V 3.0.  All in all it seems that Hyper-V is a very rapidly maturing product, and Microsoft is adding the features and scalability so craved by enterprises.  Indeed, it also appears that they are pulling ahead of vSphere in certain areas.

The table below highlights some key performance maximums

  vSphere 5 Hyper-V 3
Max Nodes per Cluster 32 63
Max VMs per Cluster 3000 4000
Max CPUs per VM 32 32
Max RAM per VM 1 TB 512 GB
Max VM Disk Size 2 TB 12 TB
Max Processor Cores per Host 160 160
Max RAM per Host 2 TB 2 TB

In addition to that Hyper-V 3.0 will also bring the following to the table:

  • Live storage migration
    • This allows you to move you VHDs to another volume whilst the VM is online.  The volume need not reside on shared storage
  • Hyper-V Replica
    • This allow replication via LAN, for incredibly easy and cost-efficient DR
  • Native NIC teaming support in Windows Server 8
  • Storage De-Duplication
  • Offloaded Date Transfer (ODX), which basically offloads the grunt storage work to an ODX-enabled SAN
  • Virtualization-Aware Domain Controllers
    • You now can now make and revert to snapshots of a virtualized domain controller
    • Domain controllers running as a VM can also be cloned

This is some of the more important features Hyper-V 3.0 has to offer.  It is quickly turning into a very viable and cost-effective alternative to vSphere.