Snapstore portion was not ordered by Copy-on-Write block size

[gothaggis]

I'm seeing this in the logs occasionally - what does it mean?

veeamsnap:snapstore | WRN | Snapstore portion was not ordered by Copy-on-Write block size

Using CentOS 7.5, running unsupported kernel 5.1, and using BTRFS.

[PTide]

Hi,

It might happen when a snapshot portion is not aligned with COW-block, which means that the portion capacity cannot be fully utilized. That might happen on ext3, for example. Do you have any other FS except BTRFS on that machine?

Thanks!

[gothaggis]

yes, have 2 xfs volumes - one is not backed up at all, and the other one is using file level restore instead of snapshots.

[PTide]

It can happen on XFS as well, though the probability of that is lower.

Thanks!