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    Host compatibility

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    • A Offline
      acebmxer
      last edited by

      Having compatibility issues between two host.

      Current pool has 2 host. Both host are Dell r640. Previously migrated from vmware which was running now host 2 (slave host). The current Master host was installed and VMs were migrated over. I have fixed all networking and storage configuration on now host 2 and joined to the pool. When I attempt to migrate a VM over i get the following error message (Windows VM).

      Screenshot_20260218_181936.png

      I had a powered off linux Ubuntu server. While it was powered off i migrated to host 2. Powserd up VM and it booted itself on host 1. I then attempted to migrate back to host 2 and it did no issues.

      However Windows VM gives the above error still.

      Host 1 (Master host) - Intel(R) Xeon(R) Silver 4114 CPU @ 2.20GHz
      Host 2 (Slave host) - Intel(R) Xeon(R) Silver 4210 CPU @ 2.20GHz

      Any other information needed?

      A 1 Reply Last reply Reply Quote 0
      • A Offline
        acebmxer @acebmxer
        last edited by

        Created fresh windows 11 vm and it decieded to boot on host 2. After booted to desktop and tools installed I was able to migrate to host 1. I then was able to migrate back to host 2.

        Maybe if i shutdown the vms and boot backup all will be good?

        DanpD 1 Reply Last reply Reply Quote 0
        • DanpD Offline
          Danp Pro Support Team @acebmxer
          last edited by

          @acebmxer said in Host compatibility:

          Maybe if i shutdown the vms and boot backup all will be good?

          This is generally correct. If the VMs haven't been migrated or rebooted since the additional host was added to the pool, then you can encounter this situation due to CPU masking.

          See the docs for an explanation of Homogeneous vs Heterogeneous Pools.

          A 1 Reply Last reply Reply Quote 0
          • A Offline
            acebmxer @Danp
            last edited by acebmxer

            @Danp

            Yeah found vm i could shutdown and powered it back up it booted on host 2 and was able to migrate back and forth.

            I didnt have that issue when building the other two pools.

            I have a few old windows server 2012r2 and 2016. I know their old and will work on upgrading them but i was not able to install the tools on i think just the 2012r2.

            https://docs.xcp-ng.org/vms/#windows-guest-tools - I see 2016.

            Is there way to install the tools or an older version that will work for the time being?

            DanpD 1 Reply Last reply Reply Quote 0
            • DanpD Offline
              Danp Pro Support Team @acebmxer
              last edited by

              @acebmxer There are older versions of the guest tools still available on Github.

              1 Reply Last reply Reply Quote 0
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