VERITAS File SystemÖ 3.5 (HP OnlineJFS/JFS3.5) AdministratorÆs Guide (December 2002)

Chapter 9

VERITAS QuickLog

QuickLog Administration and Troubleshooting

QuickLog Recovery

For each QuickLog device in this file that is in the ATTACHED state, the script tries to replay the log data and

metadata that has not been committed to the VxFS file systems before the crash or reboot occurred. This log

replay is similar to that of the VxFS fsck command (see fsck_vxfs (1M) for details). If the log replay is

successful, VxFS does not need to perform a full file system consistency check when running fsck. (See the

qlogck (1M) man page for more information).

If an error occurs on one of the QuickLog volumes, the QuickLog device to which this volume is attached is

disabled and a full file system consistency check is done on all VxFS file systems that were enabled on this

device.

If an error occurs on only one of the file systems logged on a QuickLog device, a full file system consistency

check is run only on that file system.

The start up script calls qlogattach, which reattaches all recovered QuickLog volumes. The QuickLog

volumes must be reattached before you can remount VxFS file systems to log with QuickLog.

NOTE All operations are done automatically during system start up; no manual intervention is

required.