gfs2_grow - Expand a GFS2 filesystem
gfs2_grow [
OPTION]... <
DEVICE|
MOUNTPOINT>...
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.
- -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.
- -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.
Shrinking GFS2 filesystems is currently unsupported.
mkfs.gfs2(8) gfs2_jadd(8) lvextend(8) lvmlockd(8)