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       gfs_grow - Expand a GFS filesystem


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


       gfs_grow is used to expand a GFS filesystem after the device upon which
       the filesystem resides has also been expanded.  By running gfs_grow  on
       a  GFS  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 GFS 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

       You may only  run  gfs_grow  on  a  mounted  filesystem;  expansion  of
       unmounted  filesystems is not supported.  You only need to run gfs_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 gfs_grow.  The gfs_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 gfs_grow with the -Tv flags to get a display of the current
       state of a mounted GFS filesystem.  This can be useful to do after  the
       expansion process to see if the changes have been successful.

       gfs_grow will consume all the remaining space in a device and add it to
       the filesystem.  If you want to add journals too, you need to  add  the
       journals first using gfs_jadd.


       -h     Prints out a short usage message and exits.

       -q     Quiet. Turns down the verbosity level.

       -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. You
              probably want to turn the verbosity level up in  order  to  gain
              most information from this option.

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

       -v     Verbose. Turn up verbosity of messages.


       mkfs.gfs(8) gfs_jadd(8)