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    Too many snapshots

    Scheduled Pinned Locked Moved Backup
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    • A Online
      Andrew Top contributor @McHenry
      last edited by

      @McHenry What do you have Number of NBD connection per disk set to?

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      • M Offline
        McHenry @Andrew
        last edited by

        @Andrew

        Is this it?

        44abaea6-12cc-4310-8aa0-82a66ef69a0e-image.jpeg

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        • P Offline
          Pilow @McHenry
          last edited by

          @McHenry for TOO MANY SNAPSHOTS in this case, better look the RETENTION applied to this CR schedule

          how many retention points do you have in the schedule of this job ?

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          • M Offline
            McHenry @Pilow
            last edited by

            @Pilow

            Currently set to 15 on one schedule and 1 on the other schedule
            6222e208-fb69-42bd-90af-2c5c97179263-image.jpeg

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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

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              • 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 Offline
                  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 Offline
                        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 Offline
                          McHenry @jr-m4
                          last edited by

                          @jr-m4

                          Recreated, testing now.

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                          • M Offline
                            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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