gfs2_grow(8)                System Manager's Manual               gfs2_grow(8)

       gfs2_grow - Expand a GFS2 filesystem

       gfs2_grow [OPTION]... <DEVICE|MOINTPOINT>...

       gfs2_grow is used to expand a GFS2 filesystem after the device upon
       which the filesystem resides has also been expanded.  By running
       gfs2_grow on a GFS2 filesystem, you are requesting that any spare space
       between the current end of the filesystem and the end of the device is
       filled with a newly initialized GFS2 filesystem extension.  When this
       operation is complete, the resource index for the filesystem is updated
       so that all nodes in the cluster can use the extra storage space which
       has been added.

       You may only run gfs2_grow on a mounted filesystem; expansion of
       unmounted filesystems is not supported.  You only need to run gfs2_grow
       on one node in the cluster.  All the other nodes will see the expansion
       has occurred and automatically start to use the newly available space.

       You must be superuser to execute gfs2_grow.  The gfs2_grow tool tries
       to prevent you from corrupting your filesystem by checking as many of
       the likely problems as it can.  When expanding a filesystem, only the
       last step of updating the resource index affects the currently mounted
       filesystem and so failure part way through the expansion process should
       leave your filesystem in its original unexpanded state.

       You can run gfs2_grow with the -T flag to get a display of the current
       state of a mounted GFS2 filesystem.

       -D     Print out debbugging information about the filesystem layout.

       -h     Prints out a short usage message and exits.

       -q     Be quiet.  Don't print anything.

       -r MegaBytes
              gfs2_grow will try to make the new Resource Groups about this
              big.  The default is 256 MB.

       -T     Test. Do all calculations, but do not write any data to the disk
              and do not expand the filesystem. This is used to discover what
              the tool would have done were it run without this flag.

       -V     Version. Print out version information, then exit.

       gfs2_mkfs(8) gfs2_jadd(8)