Prevent HA load-balancing migrations during PBS backup window

[torbho]

Hi,

we are running a Proxmox VE cluster on PVE 9.2 with HA enabled and using a Proxmox Backup Server (PBS) for scheduled VM backups.

We somtimes encounter a situation where the HA/CRS scheduler started migrating a VM due to load balancing while the scheduled PBS backup was starting/running. So some VMs are not included into the backup, because they recently switched the PVE node.

We would like to avoid this kind of overlap.

Ideally, if there is no other option, we would like to define a time window, for example:

• 00:00–06:00: No automatic HA/CRS migrations for load balancing
• HA failover in case of an actual node failure should still remain fully active

So the goal is not to fully disable HA during the backup window. We only want to prevent optional/automatic migrations caused by load balancing while backups are running.

Is there a supported way in PVE 9 to achieve that?

 

[j.theisen]

Hi @torbho

thanks for posting on the forum!

There is an open bug report [1] for this and i will link this thread there to cross reference everything.

Feel free to CC yourself to said report to get notified on progress on this.

Best regards
Jonas

[1] https://bugzilla.proxmox.com/show_bug.cgi?id=7622

 

[torbho]

Thank you for the link to Bugzilla.
Sorry, but I could not find another thread regarding this problem, before posting. Now I can see, that others have the same problem.