See Windows Server 8 Hyper-V Simultaneous Live Migration & Cluster Host Drain In Action

Yesterday I showed you how my Windows Server 8 Hyper-V lab is currently built (I’m in the process of wiping to build something more flexible).  Today, I’m going to show you two things:

  1. Not just Live Migration in action, but simultaneous Live Migration.  I’ll be moving all 66 VMs from Host1 to Host2, and they’ll move 20 at a time.  This is a huge improvement over the 1 at a time that we can do in W2008 R2, and way more than the maximum of 4 (on 1 GbE) or 8 (on 10 GbE) that vSphere 5.0 can handle.  BTW, I was moving all of them at once last night Smile
  2. I’m going to perform the move by draining Host1 using a new pause function.  This is used for host maintenance (similar to VMM maintenance mode) and will Live Migrate the VMs to the most suitable host (Failover Clustering measures memory, where VMM does Intelligent Placement).  This pause function is used by Windows Server 8 Cluster Aware Updating.

In the demo, you’ll see my 20 GbE NIC team that is used for Live Migration and the 1 GbE file server where the VMs are located:

 

 

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2 Comments on See Windows Server 8 Hyper-V Simultaneous Live Migration & Cluster Host Drain In Action

  1. Will it be possible to add a Server 2012 server to a Server 2008 cluster so you can live migrate your vms to the new server and then do a non disruptive (to the vms) rolling upgrade of all of your hyper-v hosts to Server 2012?
    If not, how will you non disruptively upgrade your 2008r2 hyper-v cluster?

    • Aidan Finn // April 24, 2012 at 7:34 PM // Reply

      No, you can’t. You’ll have some level of disruption as you move VMs from one cluster to another because Windows Server 2008/R2 do not support Shared Nothing Live Migration. You might be able to do quick storage migration with VMM. Without VMM, you could zone/mask in the new cluster to the LUNs and migrate the VMs over.

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