3.3. Growing a File System on a Logical Volume

To grow a file system on a logical volume, perform the following steps:

Make a new physical volume.
Extend the volume group that contains the logical volume with the file system you are growing to include the new physical volume.
Extend the logical volume to include the new physical volume.
Grow the file system.

If you have sufficient unallocated space in the volume group, you can use that space to extend the logical volume instead of performing steps 1 and 2.