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    Migrated Windows2019 vmdk keeps rebooting

    Scheduled Pinned Locked Moved Migrate to XCP-ng
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    • G
      gck303
      last edited by

      I am using a new and fresh XCP-NG 8.3 install. Storage is on a Synology NAS with Intel DS SSDs and using a 10GBe network to the XCP hosts.

      I have migrated a Windows 2019 server from Proxmox by moving and running qemu-img on the files. Originally this VM was installed on ESXi and was migrated into Proxmox.

      The problem:

      • the Windows 2019 server restarts every few minutes. After a few minutes it reboots. This cycle repeats and repeats.

      • the network when it is up is not great . There are mised and delayed responses to a ping

      • no other VM has this problem

      • I have tried migrating from different VMDK files and backups. The same result

      • There are no obvious mistakes in the XCP config

      • I have checked all the logs in the XCP hosts. There is nothing obvious. I can provide anything more if needed

      • A fresh install of Win2019 in XCP works fine.

      I am not sure where to go next...

      Is this problem resolvable? I am tempted just to rebuild a new server and re-install the software.

      Thanks, George

      PS. Brilliant forum. Brilliant software. Double thumbs up!

      K D 2 Replies Last reply Reply Quote 0
      • K
        kassebasse @gck303
        last edited by

        @gck303
        What happens if you spin up a new Windows Server 2019 and on the old Windows Server 2019 run the backup program and restore the backup on the new Windows Server 2019? Might be a solution?

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        • D
          dinhngtu Vates 🪐 XCP-ng Team @gck303
          last edited by

          @gck303 Were there any I/O drivers installed on your Server 2019 server? Do you have any events in the VM's System log, or any crash dumps?

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          • G
            gck303 @kassebasse
            last edited by

            @kassebasse It only stays up for five minutes or so. It is not around for long enough to take a backup.

            @dinhngtu Ah, good point. I will check to see if there were drivers installed for Proxmox/ESXi. I guess it would possible that there are some left there.

            I have not attempted to install any XCP drivers on the VM. Might that be a resolution?

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            • D
              DustinB @gck303
              last edited by DustinB

              @gck303 said in Migrated Windows2019 vmdk keeps rebooting:

              @kassebasse It only stays up for five minutes or so. It is not around for long enough to take a backup.

              @dinhngtu Ah, good point. I will check to see if there were drivers installed for Proxmox/ESXi. I guess it would possible that there are some left there.

              I have not attempted to install any XCP drivers on the VM. Might that be a resolution?

              Installing the Xen-Guest-Drivers won't act as a fix to this issue. Though it is recommended that you install the drivers for performance and metric reasons, that is purely after any issues have been fixed.

              What I would recommend is wherever this VM is running successfully now, uninstall any hypervisor specific drivers and then either export it to OVA/XVA and then import it.

              While this of course does change your production system, if your goal is to move off of your existing hypervisor to XCP-ng you'll need to remove these drivers anyways.

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              • G
                gck303 @DustinB
                last edited by

                So....................... it is dynamic memory causing me problems.

                I have have set the min/max and static memory to the be same. The system stays up fine.

                Now to figure our how/if I need dynamic memory to work on a Windows VM. I do not seem to be having problems with linux based workloads.

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