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    Differential Restore - Limitations

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    • K Offline
      KPS Top contributor
      last edited by

      Hi!

      I did not find a further description about the "Differential Restore" - only the blog-post:
      https://xen-orchestra.com/blog/xen-orchestra-5-89/

      Can you provide any informations about the limitation?
      I can set the option also for "cross-cluster" and "cross-SR"-restores, but what are the exact prerequisits to let it "work"?

      • Restore to the same SR?
      • Restore only to the same pool?

      Any additional things to consider?

      Thank you and best wishes
      KPS

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      • olivierlambertO Offline
        olivierlambert Vates 🪐 Co-Founder CEO
        last edited by

        Hi,

        It works if you restore on the same SR where the original VDIs is hosted.

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        • K Offline
          KPS Top contributor @olivierlambert
          last edited by

          @olivierlambert
          As there is currently no "restore-to-original-location" (what would be great).

          Is it possible to:

          • restore to the same location
          • detach old VDI from VM
          • attach restored VDI
          • delete old VDI

          ...or is this a problem, as they are "linked" in any way?

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          • olivierlambertO Offline
            olivierlambert Vates 🪐 Co-Founder CEO
            last edited by

            I don't see why doing this?

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            • K Offline
              KPS Top contributor @olivierlambert
              last edited by

              @olivierlambert
              I have had the problem, that Windows VMs lost their activation after restores.
              As the UUID cannot be changed, that would be my way to preserve it as long, as one version of the VM is still there.

              There was a thread some months ago about how to change/keep the uuid.

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              • olivierlambertO Offline
                olivierlambert Vates 🪐 Co-Founder CEO
                last edited by

                Are you sure it's base on the VM UUID?

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                • K Offline
                  KPS Top contributor @olivierlambert
                  last edited by

                  @olivierlambert
                  I think so. I had some re-activations after restores. VIF-MAC did not change, hypervisor-hardware did not change.

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                  • olivierlambertO Offline
                    olivierlambert Vates 🪐 Co-Founder CEO
                    last edited by

                    I don't see the reason, the UUID is completely internal to XAPI. You might want to compare the 2 objects (like doing a diff between 2x xe vdi param list)

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