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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 be‐
       comes 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 exam‐‐
              ples 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  ex‐
              pressed  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)