I've got a pve 5.4-6 node running with zfs and a couple of KVM vhosts using LVM with XFS as their underlying filesystems. The zfs pool is close to exhausting it's free space (approx 5 gigs remain). The zvol in question is 3.28tb and has a reservation set for 3.28tb, however the xfs filesystems on this VM are getting corrupted and require an xfs_repair to be run on them. I am wondering if anyone else has seen this type of behavior? I suspect adding some additional space to the zfs pool would resolve the problem, but if there is a reservation in place, shouldn't that guarantee the space allocation to the zvol? Any insights you guys may have are appreciated.