GPFS error messages for disk media failures

There are some GPFS error messages associated with disk media failures.

Disk media failures can be associated with these GPFS message numbers:
6027-418
Inconsistent file system quorum. readQuorum=value writeQuorum=value quorumSize=value
6027-482 [E]
Remount failed for device name: errnoDescription
6027-485
Perform mmchdisk for any disk failures and re-mount.
6027-636 [E]
Disk marked as stopped or offline.