Filesystem Corruption

Filesystem Corruption

Most often, a filesystem is corrupted because the system experienced a panic or didn't shut down cleanly. This can be caused by system software failure, hardware failure, or human error (for example, pulling the plug). Another possible source of filesystem corruption is overlapping partitions.

There is no foolproof way to predict hardware failure. The best way to avoid hardware failures is to conscientiously follow recommended diagnostic and maintenance procedures.

Human error is probably the greatest single cause of filesystem corruption. To avoid problems, follow these rules closely:

Always shut down the system properly. Do not simply turn off power to the system. Use a standard system shutdown tool, such as the shutdown command.
Never remove a filesystem physically (pull out a hard disk) without first turning off power.
Never physically write-protect a mounted filesystem, unless it is mounted read-only.

The best way to insure against data loss is to make regular, careful backups. See the guide IRIX Admin: Backup, Security, and Accounting for complete information on system backups.