Source:  FILESYS.NLM

Explanation:  The operating system encountered a problem while mounting a volume.

Possible Cause:  A test of the subdirectory first block entry did not return with the correct value.

Possible Cause:  The entry contained a value not equal to zero, indicating the wrong directory block or corruption.

Action:  Run VREPAIR and restart the system.

Warning: If you delete the volume, all data will be destroyed. You will have to restore the data from a backup.

If the problem persists, make sure a volume backup exists. Delete the volume, re-create it, and restore the data from the backup.