Cause For File System Error

File system corruption

•     Using a corrupt file system on other kernels can still result in the file system being shutdown if the problem has not been rectified (on disk), making it seem like other kernels are affected.

•    The xfs_check tool, or xfs_repair -n, should be able to detect any directory corruption.

Syncing

•     When only parts of the disk cache have been written, the controller doesn't even see that the disks are out of sync.

•    As the disks can resort cached blocks and might have saved the superblock info, but then lost different data contents.

•     So, turn off disk write caches before using the RAID function.

Bad disk blocks

•    As a consequence of this behavior, the corrupted partition cannot be fixed and data remains inaccessible.

•    Need to partition and reformat the hard drive to a partition scheme that fsck can understand.

•     After the partition has been reformatted, need to restore lost data from last available backup.