CBT: the thread to centralize your feedback
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@olivierlambert I just got this error to on our production pools!
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@manilx ticket opened.
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@manilx The
incorrect backup sizewarning is a known issue that we will investigate soon
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@julien-f said in CBT: the thread to centralize your feedback:
@manilx The
incorrect backup sizewarning is a known issue that we will investigate soon
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@julien-f and the stream error?
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@rtjdamen We are investigating it as well
For the XO backend team, the next few months are focused on stabilization, bug fixes and maintenance
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@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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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?
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@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
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@rtjdamen Makes sense, it would be nice is XOA cleaned up these small CBT snapshots though after a migration from one SR to another.
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@flakpyro indeed, sounds like a bug. It should delete the snapshot, disable cbt and then migrate to the other sr.
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I've been out of life for a while.
is it any known problem with CBT file restore?
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@Tristis-Oris Working fine here, with cbt backups.
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@Tristis-Oris Is your backed up VM using LVM for it's root filesystem?
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@Andrew most of them, yes.
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@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) -
@Andrew got it. i miss that ticket.
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@Andrew ext4 or windows
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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.
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@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.
closed feat(nbd-client/multi): harden NBD backups #7836
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