Too many snapshots

[Pilow]

the limit enforced by XOA is 30

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

[McHenry]

@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.

And a CR created VM with 16 snapshots.

I wonder why the health check shows too many snapshots as I am well under 30 per VM

[Pilow]

@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 ?

[jr-m4]

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.

[McHenry]

@Pilow

SR is local storage

[McHenry]

@jr-m4

Recreated, testing now.

[McHenry]

@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.

[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)

[McHenry]

@Pilow

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

[tjkreidl]

@Pilow Yes; it's been my understanding that this has been the default for many years now.