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Live Migrations No Longer Working After January 2019 Updates

    Question

  • We have a problem after the January updates (50 plus blades with AMD Bulldozer Family 15h processors) We have 400 plus VMs hosted on our hyper v clusters (Server 2012R2 and SCVMM 2012r2), and after January updates can no longer live migrate. We have put the KB4490512 update on one of the hosts but it requires a reboot, which in turn would require us to power down our VMs as we are unable to migrate them off now.  Is there/will there be a fix to enable us to not have to reboot the hosts?  or is there/ will there be a workaround to enable us to live migrate the vms ?

    Hopefully there will be as this will cause a lot of business disruption.

    Any help would be much appreciated

    Regards

    Andrew
    Wednesday, March 13, 2019 10:59 AM

All replies

  • Hi Andrew,

    Thanks for your question.

    Could you manually execute the VMs failover to another host?

    When shutting down or rebooting a node in a Failover Cluster, you first want to drain (move off) any roles running on that server (such as a virtual machine).  This ensures that the shutting down of a node is graceful to any applications running on that node.

    1. Open Failover Cluster Manager (CluAdmin.msc)
    2. Click on “Nodes”
    3. Right-click on the node name and under ‘Pause’ click on ‘Drain Roles’
    4. Under Status the node will appear as ‘Paused’.  At the bottom of the center pane click on the ‘Roles’ tab.  Once all roles have moved off this node, it is safe to shut down or reboot the node.

    Details:

    https://blogs.msdn.microsoft.com/clustering/2013/08/23/how-to-properly-shutdown-a-failover-cluster-or-a-node/

    Besides, Is there/will there be a fix to enable us to not have to reboot the hosts?>>>>

    We could configure highly available virtual machine priority when the host restarts. Please refer to the following blog,

    https://www.petri.com/clustered-hyper-v-virtual-machine-prioritization-2

    https://www.altaro.com/hyper-v/configure-start-order-priority-clustered-vms/

    Please Note: Since the web site is not hosted by Microsoft, the link may change without notice. Microsoft does not guarantee the accuracy of this information.

    Hope above information can help you. If you have any question or concern, please feel free to let me know.

    Best regards,

    Michael


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    Thursday, March 14, 2019 7:34 AM
    Moderator
  • Duplicate post - https://social.technet.microsoft.com/Forums/en-US/c1828799-f639-4b92-8502-00307f796614/live-migrations-no-longer-working-after-january-2019-updates?forum=winserverhyperv

    tim

    Thursday, March 14, 2019 1:14 PM
  • Hi,

    Just want to confirm the current situations.

    Please feel free to let me know if you need further assistance.

    Best regards,

    Michael

    Please remember to mark the replies as an answers if they help.
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    Monday, March 18, 2019 10:01 AM
    Moderator
  • Hi,

    How are things going on? Was your issue resolved?

    Please feel free to let me know if you need further assistance.

    Best regards,

    Michael


    Please remember to mark the replies as an answers if they help.
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    Wednesday, March 20, 2019 2:51 PM
    Moderator
  • Hi,

    Was your issue resolved?

    If you resolved it using our solution, please "mark it as answer" to help other community members find the helpful reply quickly.

    If you resolve it using your own solution, please share your experience and solution here. It will be very beneficial for other community members who have similar questions.

    If no, please reply and tell us the current situation in order to provide further help.

    Best Regards,

    Michael


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    Friday, March 22, 2019 9:55 AM
    Moderator