NAME

       gfs2_grow - Expand a GFS2 filesystem

SYNOPSIS

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

DESCRIPTION

       gfs2_grow  expands  a  GFS2  filesystem  after the device upon which the filesystem resides has also been
       expanded. gfs2_grow expands the GFS2 filesystem to utilize any unused space between the  current  end  of
       the  filesystem  and  the  end  of the block device.  When this operation is complete, the resource group
       index for the filesystem is updated so that all nodes in the cluster can use the extra storage space that
       has been added.

       See lvmlockd(8) for the procedure to extend and refresh the logical volume prior to running gfs2_grow.

       The DEVICE or MOUNTPOINT  arguments  must  be  paths  to  mounted  filesystems;  expansion  of  unmounted
       filesystems  is  not  supported.  gfs2_grow need only be run on one node in the cluster.  The other nodes
       will see the expansion has occurred and automatically start to use the newly available space.

       gfs2_grow must be run as the superuser. When the filesystem cannot be resized  due  to  detected  errors,
       gfs2_grow will leave the filesystem in a consistent state.

OPTIONS

       -D     Print out debugging information about the filesystem layout.

       -h     Prints out a short usage message and exits.

       -q     Be quiet.  Don't print anything.

       -K     Do  not  attempt  to discard the block device contents. Issuing discards to the device allows some
              solid state devices and sparse or thin-provisioned storage devices to optimise free  space.  Other
              devices may emulate this behaviour by zeroing the device contents, which can be a slow process.

       -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. This option
              can be used to display the current state of a mounted GFS2 filesystem.

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

NOTES

       Shrinking GFS2 filesystems is currently unsupported.

SEE ALSO

       mkfs.gfs2(8) gfs2_jadd(8) lvextend(8) lvmlockd(8)

                                                                                                    gfs2_grow(8)