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  • Prevent failover vms to specific host

    Hi all,

    I have a Hyper-v cluster with 6 hosts.
    In the cluster i have 2 host that i want to prevent vms from failing over to that host.
    My question is if this is possible?

    Any reply will be appreciate
    Moshe

  • #2
    Re: Prevent failover vms to specific host

    Do you want to prevent all VMs from failing over to them or just certain VMs. Can you let us know the reason behind it?

    Comment


    • #3
      Re: Prevent failover vms to specific host

      Hi,

      I want to prevent all VMs from failing over to them.

      Comment


      • #4
        Re: Prevent failover vms to specific host

        Is this Microsoft Clustering (and which host OS)?
        IIRC there is an option to disable failover to individual cluster members (e.g. for planned maintenance)

        But why would you want a cluster and not be able to failover to a member?
        Tom Jones
        MCT, MCSE (2000:Security & 2003), MCSA:Security & Messaging, MCDBA, MCDST, MCITP(EA, EMA, SA, EDA, ES, CS), MCTS, MCP, Sec+
        PhD, MSc, FIAP, MIITT
        IT Trainer / Consultant
        Ossian Ltd
        Scotland

        ** Remember to give credit where credit is due and leave reputation points where appropriate **

        Comment


        • #5
          Re: Prevent failover vms to specific host

          Hi,

          The OS is windows server 2008 R2 SP1.
          I have 6 host hyper-v cluster with two host that have cpu from another family so, vms can not move to that hosts.
          I know that i better create a new cluster but i just want to know

          Thanks

          Comment


          • #6
            Re: Prevent failover vms to specific host

            Well it's possible I think but I never tried this.

            - Open Failover Cluster Manager
            - Expand Cluster name -> Services and applications -> VM Resource
            - in the center pane right-click the VM and select properties
            - Select the Advanced Policies tab

            You can also set the preferred owner which might be a better way to go. That way things will come up in the event of a disaster and you will then need to schedule a maintenance Window to move the VMs back to the proper hosts.
            Regards,
            Jeremy

            Network Consultant/Engineer
            Baltimore - Washington area and beyond
            www.gma-cpa.com

            Comment


            • #7
              Re: Prevent failover vms to specific host

              When you say that these two servers have a processor from another family do you mean another family from the same manufacturer? If so, you can enable failover/migration to a host with a different processor version from the same manufacturer.

              At any rate, I'm pretty positive that the setting you're looking for is a per VM setting so you'll have to set it on each VM.

              Comment


              • #8
                Re: Prevent failover vms to specific host

                Hi,

                I checked it out and i think you're right!
                i can unchecked the host that i don't want VMs the fail over to

                Thank you very much
                Moshe

                Comment


                • #9
                  Re: Prevent failover vms to specific host

                  Hi,

                  The processors are not from the same manufacturer but from where i can configure the settings the you talk about

                  Moshe

                  Comment


                  • #10
                    Re: Prevent failover vms to specific host

                    In Hyper-V Manager right click the VM and select Settings, then select the Processor in the hardware tree, then check to box labeled "Migrate to a physical computer with a different processor version".

                    Note 1: The VM has to be shutdown to enable this setting.

                    Note 2: I'm pretty sure this only works with processors from the same manufacturer.

                    Comment


                    • #11
                      Re: Prevent failover vms to specific host

                      Thanks for the info

                      Comment

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