Section: Maintenance Commands (8)
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gfs2_fsck - Offline GFS2 file system checker
All GFS2 nodes must have the GFS2 filesystem unmounted before running
gfs2_fsck. Failure to unmount all nodes may result in filesystem corruption.
gfs2_fsck will check that the GFS2 file system on a device is structurally valid.
It should not be run on a mounted file system. If file system corruption is
detected, it will attempt to repair the file system. There is a limit to what
gfs2_fsck can do. If important file system structures are destroyed, such that
the checker cannot determine what the repairs should be, reparations could
GFS2 is a journaled file system, and as such should be able to repair damages to
the file system on its own. However, faulty hardware has the ability to write
incomplete blocks to a file system thereby causing corruption that GFS2 cannot
fix. The first step to ensuring a healthy file system is the selection of
reliable hardware (i.e. storage systems that will write complete blocks - even
in the event of power failure).
This prints out the proper command line usage syntax.
No to all questions.
By specifying this option, gfs2_fsck will only show the changes that
would be made, but not make any changes to the filesystem.
Print out the program version information.
Print more information while running.
Yes to all questions.
By specifying this option, gfs2_fsck will not prompt before making
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