[lustre-discuss] Writing barrier stuck in failed state.

[Sergey Vergun]

Hello. We have lustre 2.15.4 on Rocky 8.9
Two MDS with ZFS backend.
After some time doing snapshots writing barrier stuck in failed state.

Filesystem seems like working but I can't take snapshots anymore.
barrier_thaw or rescan throw error "Invalid argument" and "-b off" option
for snapshot_create have no effect. lsnapshot.log say that I call snapshot
creation with barrier ON even if I say to not use it.

How can I find what caused failed state to prevent that in future and is it
possible to unlock?
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