Journaling file system

[Piotr Kirklewski]

Hi

In order to perform a complete integrity check of a journaled file system i should firs close all open files and directories:

How do I do that ?

Cheers

[James R. Ferguson · Accepted solution]

Hi Piotr:

Unmount the filesystem.

Regards!

...JRF...

[Steven E. Protter]

Shalom,

The command for performing the check is fsck

It must be as JRF points out requires you to umount the filesystem.

If the filesystem is called /myfilesystem

umount /myfilesystem

Note that all processes and file handles must be closed or the umount will faile.

SEP

[Ashish Parashar]

Hello Piotr

You have to unmount the FS and then run

fsck [-F FSType] [-o FSspecific-options] [-s] [-V] /dev/rdsk/lvolname

then mount it.

Cheers

Ashish

[A. Clay Stephenson]

It would be an extremely rare case where an already mounted filesystem would require an fsck. Before a filesystem is mounted, the filesystem metadata is checked to see if the "is_clean" flag has been set. If so, the filesystem was cleanly unmounted; as soon as the filesystem is mounted "is_clean" is cleared so that the filesystem is now dirty. In the event of a system crash, because the "is_clean" bit is noit set an automatic fsck is initiated and if it fails the filesystem is not mounted.

If you are having filesystem corruption problems after the filesystem has been mounted -- and without system crashes -- then you have very seriopus problems and you better look for patches.

[Piotr Kirklewski]

Cool :)