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xfs_growfs(8)                        System Manager's Manual                        xfs_growfs(8)

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 sec-
              tion is grown to the largest size possible with the -d  option.  The  size  is  ex-
              pressed 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 pos-
              sible. 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  in-
              ternal 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 con-
              tained 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 parti-
       tion 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)

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