...
| Code Block | ||
|---|---|---|
| ||
pcs status cat /proc/drbd # On some other linux machines ls /home/jtel/shared # Windows dir //acd-store/shared |
File System Corrupt
Sometimes, when DRBD fails, the file system will also become corrupt.
In this case both nodes might be primary, however neither will have the share mounted.
The command mount /srv/jtel/shared will fail.
In this case, it may be necessary to repair the file system.
Symptoms
| Code Block |
|---|
[17354513.483526] XFS (drbd1): log mount/recovery failed: error -22
[17354513.483569] XFS (drbd1): log mount failed
[17355040.104433] XFS (drbd1): Mounting V5 Filesystem
[17355040.122234] XFS (drbd1): Corruption warning: Metadata has LSN (56:112832) ahead of current LSN (56:112733). Please unmount and run xfs_repair (>= v4.3) to resolve.
[17355040.122239] XFS (drbd1): log mount/recovery failed: error -22
[17355040.122322] XFS (drbd1): log mount failed |
Repairing
One one of the nodes (need to choose one to become primary):
| Code Block |
|---|
xfs_repair /srv/jtel/shared/
pcs resource cleanup |
This should then mount and start the resources on that node.
Then proceed with the other node as "broken" in the split brain situation.