[gpfsug-discuss] Checking a file-system for errors

Simon Thompson (IT Research Support) S.J.Thompson at bham.ac.uk
Wed Oct 11 09:46:46 BST 2017


I'm just wondering if anyone could share any views on checking a
file-system for errors.

For example, we could use mmfsck in online and offline mode. Does online
mode detect errors (but not fix) things that would be found in offline
mode?

And then were does mmrestripefs -c fit into this?

"-c
                  Scans the file system and compares replicas of
                  metadata and data for conflicts. When conflicts
                  are found, the -c option attempts to fix
                  the replicas.
"

Which sorta sounds like fix things in the file-system, so how does that
intersect (if at all) with mmfsck?

Thanks

Simon




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