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    CBT: the thread to centralize your feedback

    Scheduled Pinned Locked Moved Backup
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    • M Offline
      manilx @rtjdamen
      last edited by manilx

      @olivierlambert I just got this error to on our production pools!
      ScreenShot 2024-07-21 at 09.29.37.png

      M julien-fJ 2 Replies Last reply Reply Quote 0
      • M Offline
        manilx @manilx
        last edited by

        @manilx ticket opened.

        1 Reply Last reply Reply Quote 0
        • julien-fJ Offline
          julien-f Vates 🪐 Co-Founder XO Team @manilx
          last edited by

          @manilx The incorrect backup size warning is a known issue that we will investigate soon 🙂

          M R 2 Replies Last reply Reply Quote 0
          • M Offline
            manilx @julien-f
            last edited by

            @julien-f said in CBT: the thread to centralize your feedback:

            @manilx The incorrect backup size warning is a known issue that we will investigate soon 🙂

            👏

            1 Reply Last reply Reply Quote 0
            • R Offline
              rtjdamen @julien-f
              last edited by

              @julien-f and the stream error?

              julien-fJ 1 Reply Last reply Reply Quote 1
              • julien-fJ Offline
                julien-f Vates 🪐 Co-Founder XO Team @rtjdamen
                last edited by

                @rtjdamen We are investigating it as well 🙂

                For the XO backend team, the next few months are focused on stabilization, bug fixes and maintenance 🙂

                A 1 Reply Last reply Reply Quote 0
                • A Offline
                  Andrew Top contributor @julien-f
                  last edited by

                  @julien-f @florent @olivierlambert I'm using XO source master (commit c5f6b). Running Continuous Replication with NBD+CBT and Purge Snapshot. With a single (one) NBD connection on the backup job, things work correctly. With two NBD connections I see some Orphan VDIs left almost every time after the backup job runs. They are different ones each time.

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                  • F Offline
                    flakpyro @Andrew
                    last edited by

                    I noticed when migrating some VDIs with CBT enabled from one NFS SR another that the CBT only snapshots are left behind. Perhaps this is why a full backup seems to be required after a storage migration?

                    R 1 Reply Last reply Reply Quote 0
                    • R Offline
                      rtjdamen @flakpyro
                      last edited by

                      @flakpyro i know from our other backup software we use that migrating cbt enabled vdi’s is not supported on xen, when u migrate between sr it will disable cbt on that vdi. This is causing a new full. This is by design

                      https://github.com/vatesfr/xen-orchestra/pull/7756

                      fbeauchamp opened this pull request in vatesfr/xen-orchestra

                      closed feat(xo-server): disable cbt on vdi/VM/host migration #7756

                      F 1 Reply Last reply Reply Quote 0
                      • F Offline
                        flakpyro @rtjdamen
                        last edited by

                        @rtjdamen Makes sense, it would be nice is XOA cleaned up these small CBT snapshots though after a migration from one SR to another.

                        R 1 Reply Last reply Reply Quote 1
                        • R Offline
                          rtjdamen @flakpyro
                          last edited by

                          @flakpyro indeed, sounds like a bug. It should delete the snapshot, disable cbt and then migrate to the other sr.

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                          • Tristis OrisT Offline
                            Tristis Oris Top contributor
                            last edited by

                            I've been out of life for a while.
                            is it any known problem with CBT file restore?
                            b11b7872-c829-4cba-8f38-1e199fd7cbe1-image.png

                            M A 2 Replies Last reply Reply Quote 0
                            • M Offline
                              manilx @Tristis Oris
                              last edited by

                              @Tristis-Oris Working fine here, with cbt backups.

                              1 Reply Last reply Reply Quote 0
                              • A Offline
                                Andrew Top contributor @Tristis Oris
                                last edited by

                                @Tristis-Oris Is your backed up VM using LVM for it's root filesystem?

                                Tristis OrisT M 2 Replies Last reply Reply Quote 0
                                • Tristis OrisT Offline
                                  Tristis Oris Top contributor @Andrew
                                  last edited by

                                  @Andrew most of them, yes.

                                  A 1 Reply Last reply Reply Quote 0
                                  • A Offline
                                    Andrew Top contributor @Tristis Oris
                                    last edited by

                                    @Tristis-Oris This is a known issue from before and not related to CBT backups.

                                    Message Posting File restore error on LVMs

                                    File level restoration not working on LVM partition #7029
                                    (https://github.com/vatesfr/xen-orchestra/issues/7029)

                                    andrew64k created this issue in vatesfr/xen-orchestra

                                    open File level restoration not working on LVM partition #7029

                                    Tristis OrisT 1 Reply Last reply Reply Quote 0
                                    • Tristis OrisT Offline
                                      Tristis Oris Top contributor @Andrew
                                      last edited by

                                      @Andrew got it. i miss that ticket.

                                      1 Reply Last reply Reply Quote 0
                                      • M Offline
                                        manilx @Andrew
                                        last edited by

                                        @Andrew ext4 or windows

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                                        • F Offline
                                          frank-s
                                          last edited by

                                          Hi, I am running from the sources and I'm almost up to date (991b4) . Can anyone please tell me what this means "Error: can't create a stream from a metadata VDI, fall back to a base". Restarting the backup results in a full backup rather than an incremental.
                                          Thanks.

                                          436b4e04-ffee-4afe-b605-db05abf63ad3-image.png

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

                                            @frank-s This PR is where the update occurred -- https://github.com/vatesfr/xen-orchestra/pull/7836

                                            @florent should be able to explain the meaning.

                                            fbeauchamp opened this pull request in vatesfr/xen-orchestra

                                            closed feat(nbd-client/multi): harden NBD backups #7836

                                            M 1 Reply Last reply Reply Quote 0
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