NAME | SYNOPSIS | DESCRIPTION | OPTIONS | PRACTICAL USE | EXAMPLES | SEE ALSO | COLOPHON


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

NAME         top

       xfs_growfs, xfs_info - expand an XFS filesystem

SYNOPSIS         top

       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         top

       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         top

       -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         top

       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         top

       Understanding xfs_info output.
       Suppose one has the following "xfs_info /dev/sda" output:
         meta-data=/dev/sda      isize=256    agcount=32, agsize=16777184 blks
                  =              sectsz=512   attr=2
         data     =              bsize=4096   blocks=536869888, imaxpct=5
                  =              sunit=32     swidth=128 blks
         naming   =version 2     bsize=4096
         log      =internal      bsize=4096   blocks=32768, version=2
                  =              sectsz=512   sunit=32 blks, lazy-count=1
         realtime =none          extsz=524288 blocks=0, rtextents=0
       Here, the data section of the output indicates "bsize=4096", meaning
       the data block size for this filesystem is 4096 bytes.  This section
       also shows "sunit=32 swidth=128 blks", which means the stripe unit is
       32*4096 bytes = 128 kibibytes and the stripe width is 128*4096 bytes
       = 512 kibibytes.  A single stripe of this filesystem therefore
       consists of four stripe units (128 blocks / 32 blocks per unit).

SEE ALSO         top

       mkfs.xfs(8), md(4), lvm(8), mount(8).

COLOPHON         top

       This page is part of the xfsprogs (utilities for XFS filesystems)
       project.  Information about the project can be found at 
       ⟨http://xfs.org/⟩.  If you have a bug report for this manual page, see
       ⟨http://oss.sgi.com/bugzilla/buglist.cgi?product=XFS⟩.  This page was
       obtained from the project's upstream Git repository 
       ⟨git://oss.sgi.com/xfs/cmds/xfsprogs⟩ on 2017-07-05.  If you discover
       any rendering problems in this HTML version of the page, or you
       believe there is a better or more up-to-date source for the page, or
       you have corrections or improvements to the information in this
       COLOPHON (which is not part of the original manual page), send a mail
       to man-pages@man7.org
                                                               xfs_growfs(8)

Pages that refer to this page: xfsctl(3)xfs(5)fsadm(8)mkfs.xfs(8)xfs_admin(8)xfs_copy(8)