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 resized. If the -D size
              option  is  given,  the  data  section  is changed 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.  A  filesystem  with  only 1 AG cannot be shrunk
              further, and a filesystem cannot be shrunk to the point where it would only have  1
              AG.

       -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)