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2gfs2_grow(8)                System Manager's Manual               gfs2_grow(8)
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NAME

7       gfs2_grow - Expand a GFS2 filesystem
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SYNOPSIS

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

15       gfs2_grow  is  used  to  expand a GFS2 filesystem after the device upon
16       which the filesystem  resides  has  also  been  expanded.   By  running
17       gfs2_grow on a GFS2 filesystem, you are requesting that any spare space
18       between the current end of the filesystem and the end of the device  is
19       filled  with  a newly initialized GFS2 filesystem extension.  When this
20       operation is complete, the resource index for the filesystem is updated
21       so  that all nodes in the cluster can use the extra storage space which
22       has been added.
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24       You may only run  gfs2_grow  on  a  mounted  filesystem;  expansion  of
25       unmounted filesystems is not supported.  You only need to run gfs2_grow
26       on one node in the cluster.  All the other nodes will see the expansion
27       has occurred and automatically start to use the newly available space.
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29       You  must  be superuser to execute gfs2_grow.  The gfs2_grow tool tries
30       to prevent you from corrupting your filesystem by checking as  many  of
31       the  likely  problems as it can.  When expanding a filesystem, only the
32       last step of updating the resource index affects the currently  mounted
33       filesystem and so failure part way through the expansion process should
34       leave your filesystem in its original unexpanded state.
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36       You can run gfs2_grow with the -T flag to get a display of the  current
37       state of a mounted GFS2 filesystem.
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OPTIONS

41       -D     Print out debbugging information about the filesystem layout.
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43       -h     Prints out a short usage message and exits.
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45       -q     Be quiet.  Don't print anything.
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47       -r MegaBytes
48              gfs2_grow  will  try  to make the new Resource Groups about this
49              big.  The default is 256 MB.
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51       -T     Test. Do all calculations, but do not write any data to the disk
52              and  do not expand the filesystem. This is used to discover what
53              the tool would have done were it run without this flag.
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55       -V     Version. Print out version information, then exit.
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SEE ALSO

59       gfs2_mkfs(8) gfs2_jadd(8)
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