Ubuntu Manpage: xfs_growfs, xfs_info - expand an XFS filesystem

Provided by: xfsprogs_4.3.0+nmu1ubuntu1.1_amd64

NAME

       xfs_growfs, xfs_info - expand an XFS filesystem

SYNOPSIS

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

       xfs_info [ -t mtab ] mount-point
       xfs_info -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 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.

       xfs_info is equivalent to invoking xfs_growfs with the -n option (see discussion below).

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.

EXAMPLES