NAME

       xfs_growfs - expand an XFS filesystem

SYNOPSIS

       xfs_growfs  [  -dilnrx ] [ -D size ] [ -e rtextsize ] [ -L size ] [ -m maxpct ] [ -t mtab ] [ -R size ] [
       mount-point | block-device ]

       xfs_growfs -V

DESCRIPTION

       xfs_growfs expands an existing XFS filesystem (see xfs(5)).  The mount-point argument is the pathname  of
       the  directory where the filesystem is mounted. The block-device argument is the device name of a mounted
       XFS filesystem.  The filesystem must be mounted to be grown (see mount(8)).  The existing contents of the
       filesystem are undisturbed, and the added space becomes available for additional file storage.

OPTIONS

       -d | -D size
              Specifies that the data section of the filesystem should be grown. If the -D size option is given,
              the data section is grown to that size, otherwise the data section is grown to  the  largest  size
              possible with the -d option. The size is expressed in filesystem blocks.

       -e     Allows  the  real-time  extent  size  to  be  specified.  In mkfs.xfs(8) this is specified with -r
              extsize=nnnn.

       -i     The new log is an internal log (inside the data section).  [NOTE: This option is not implemented]

       -l | -L size
              Specifies that the log section of the filesystem should be grown, shrunk, or moved. If the -L size
              option is given, the log section is changed to be that size, if possible. The size is expressed in
              filesystem blocks.  The size of an internal log must be smaller than the  size  of  an  allocation
              group  (this  value  is  printed  at mkfs(8) time). If neither -i nor -x is given with -l, the log
              continues to be internal or external as it was before.  [NOTE: These options are not implemented]

       -m     Specify a new value for the maximum percentage of space in the filesystem that can be allocated as
              inodes. In mkfs.xfs(8) this is specified with -i maxpct=nn.

       -n     Specifies that no change to the filesystem is to be made.  The filesystem geometry is printed, and
              argument checking is performed, but no growth occurs.  See output examples below.

       -r | -R size
              Specifies that the real-time section of the filesystem should be grown. If the -R size  option  is
              given,  the  real-time  section is grown to that size, otherwise the real-time section is grown to
              the largest size possible with the -r option. The size is expressed  in  filesystem  blocks.   The
              filesystem does not need to have contained a real-time section before the xfs_growfs operation.

       -t     Specifies  an  alternate  mount table file (default is /proc/mounts if it exists, else /etc/mtab).
              This is used when working with filesystems mounted without writing to /etc/mtab file  -  refer  to
              mount(8) for further details.

       -V     Prints the version number and exits. The mount-point argument is not required with -V.

       xfs_growfs  is  most  often  used  in  conjunction  with logical volumes (see md(4) and lvm(8) on Linux).
       However, it can also be used on a regular disk partition, for example if a partition  has  been  enlarged
       while retaining the same starting block.

PRACTICAL USE

       Filesystems  normally  occupy  all  of  the  space  on  the  device where they reside. In order to grow a
       filesystem, it is necessary to provide added space for it to occupy. Therefore there must be at least one
       spare  new  disk  partition available. Adding the space is often done through the use of a logical volume
       manager.

SEE ALSO

       mkfs.xfs(8), xfs_info(8), md(4), lvm(8), mount(8).

                                                                                                   xfs_growfs(8)