Growing an XFS Filesystem Onto Another Disk

• The XFS filesystem is on a disk partition.

• The XFS filesystem is on an XLV logical volume.

The following steps show how to grow a fictional /disk2 XFS filesystem onto an XLV logical volume created out of the /disk2 disk partition and a new disk. The procedure assumes that the new disk is installed on the system and partitioned.

Caution: All files on the additional disk are destroyed by this procedure.

1. Make a backup of the filesystem you are going to extend.

2. Unmount the /disk2 filesystem:

   # umount /disk2

3. Use xlv_make to create an XLV logical volume out of the /disk2 partition and the new disk. The /disk2 partition must be the first volume element in the data subvolume. For example:

   # xlv_make

   xlv_make> vol xlv0

   xlv0

   xlv_make> data

   xlv0.data

   xlv_make> plex

   xlv0.data.0

   xlv_make> ve dks0d2s7

   xlv0.data.0.0

   xlv_make> ve dks0d3s7

   xlv0.data.0.1

   xlv_make> end

   Object specification completed

   xlv_make> exit

   Newly created objects will be written to disk.

   Is this what you want?(yes) yes

   Invoking xlv_assemble

4. Mount the /disk2 filesystem:

   # mount /dev/dsk/xlv/xlv0 /disk2

5. Grow the filesystem into the logical volume with the xfs_growfs command:

   # xfs_growfs /disk2

6. Change the entry for /disk2 in the file /etc/fstab to mount the logical volume rather than the disk partition:

   /dev/dsk/xlv/xlv0 /disk2 xfs rw,raw=/dev/rdsk/xlv/xlv0 0 0