NAME
SYNOPSIS
DESCRIPTION
PRACTICAL USE
SEE ALSO

NAME

xfs_growfs, xfs_info - expand an XFS filesystem

SYNOPSIS

xfs_growfs [ -dilnrxV ] [ -D size ] [ -e rtextsize ]

[ -L size ] [ -m maxpct ] [ t mtab ]

[ -R size ] mountpoint

xfs_info [ t mtab ] mountpoint

DESCRIPTION

xfs_growfs expands an existing XFS filesystem (see xfs(5)). The mountpoint 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).

The options to xfs_growfs are:

-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. The size is expressed in filesystem blocks.

-e

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

-i

-l, -L size

The new log is an internal log (inside the data section).

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.

-m

Specify a new value for the maximum percentage of space in the filesystem that can be allocated as inodes. In mkfs.xfs 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.

-r, -R size

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

-t

Specifies an alternate mount table file (default is /etc/mtab). This is used when working with filesystems mounted without writing to /etc/mtab file refer to mount(8) for further details.

xfs_growfs
is most often used in conjunction with logical volumes (see lvm(8) ). 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 done through the mechanism of logical volumes.

	-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. The size is expressed in filesystem blocks.
	-e	Allows the realtime extent size to be specified. In mkfs.xfs(8) this is specified with -r extsize=nnnn.
	-i -l, -L size	The new log is an internal log (inside the data section). 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.
	-m	Specify a new value for the maximum percentage of space in the filesystem that can be allocated as inodes. In mkfs.xfs 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.
	-r, -R size	Specifies that the realtime section of the filesystem should be grown. If the -R size option is given, the realtime section is grown to that size, otherwise the realtime section is grown to the largest size possible. The size is expressed in filesystem blocks. The filesystem does not need to have contained a realtime section before the xfs_growfs operation.
	-t	Specifies an alternate mount table file (default is /etc/mtab). This is used when working with filesystems mounted without writing to /etc/mtab file refer to mount(8) for further details. xfs_growfs is most often used in conjunction with logical volumes (see lvm(8) ). 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.