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    Too many snapshots

    Scheduled Pinned Locked Moved Backup
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    • P Offline
      Pilow @McHenry
      last edited by Pilow

      @McHenry could you screenshot the SNAPSHOTS tab of a problematic VM ?

      the new backup & CR code changed the way it is handled as you understood... no more "one VM per replica point", but "one VM with a snapshot per replica point"

      you should see 16 snapshots on the VM ?

      EDIT : my bad, its the first screenshot you provided... indeed 16 snapshots

      I do not remember the snapshots limit per VM (50?) , but you seem to bee far from it

      P M 2 Replies Last reply Reply Quote 0
      • P Offline
        Pilow @Pilow
        last edited by

        the limit enforced by XOA is 30

        https://docs.xen-orchestra.com/backup_troubleshooting?utm_source=chatgpt.com#vdi-chain-protection

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        • M Online
          McHenry @Pilow
          last edited by

          @Pilow

          Thank you. I did not know this change had been made.

          So now I have the master VM with a snapshot for each backup schedule.
          dc816079-74a3-4c24-8367-d150206d920f-image.jpeg

          And a CR created VM with 16 snapshots.
          d3953d63-e368-49bf-9a5d-a6fb87ad5687-image.jpeg

          db8e1103-04ef-4c0f-aff2-5757bf767cc2-image.jpeg

          I wonder why the health check shows too many snapshots as I am well under 30 per VM
          5ca56285-69cb-4c2e-a648-208feaadaae6-image.jpeg

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          • P Offline
            Pilow @McHenry
            last edited by

            @McHenry could be another cap limit on the SR
            can you screenshot homepage GENERAL tab of HST150 SR ?

            how many VDIs present ?
            what type of SR is it ?

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            • J Offline
              jr-m4
              last edited by

              Throwing my two cents into the hat, as well.

              I had a similar situation. Snapshots would't be rotated out of retention, regardless of what I set on the retention setting (on a subset of VMs ie not all of the).. The thing that solved it for my, was to recreate the affected schedule.
              Do note that this will mark the previous backups taken by that technically deleted schedule, as being abandoned/orphaned.

              But after I did this, snapshots would be properly rotated as expected.

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              • M Online
                McHenry @Pilow
                last edited by

                @Pilow

                396d876a-3faf-43c6-afcc-e7f372a6477d-image.jpeg

                SR is local storage
                8160315f-ad51-46dd-b1d9-2b6449af50b8-image.jpeg

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                • M Online
                  McHenry @jr-m4
                  last edited by

                  @jr-m4

                  Recreated, testing now.

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                  • M Online
                    McHenry @Pilow
                    last edited by

                    @Pilow
                    Was there an announcement about the change in how these CR backups are done with snapshots now?

                    I'd love to read up on it.

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                    • P Offline
                      Pilow @McHenry
                      last edited by Pilow

                      @McHenry screenshot the GENERAL tab of "Disaster Recovery" SR please
                      just to see how many VDIs it hosts... at least 288

                      it was announced here
                      https://xen-orchestra.com/blog/xen-orchestra-6-3/#💾-backup
                      but it is not explaing in details, I gathered information in another topix in this forum from @florent

                      you also have the Changelog of 6.3.0
                      https://github.com/vatesfr/xen-orchestra/blob/master/CHANGELOG.md#630-2026-03-31

                      points to PR9524
                      [Replication] Reuse the same VM as an incremental replication target (PR #9524)

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                      • M Online
                        McHenry @Pilow
                        last edited by

                        @Pilow

                        I am rerunning the backups after recreating the schedule to see if the error clears

                        6f0d3051-1254-4d10-989b-c77a832378c9-image.jpeg

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