Disk Repartitioning

Disk Repartitioning

Many system administrators may find that they want or need to repartition disks when they switch to XFS filesystems and/or XLV logical volumes. Some of the reasons to consider repartitioning are:

If the system disk has separate partitions for Root and Usr filesystems, the Root filesystem may be running out of space. Repartitioning is a way to increase the space in Root (at the expense of the size of Usr) or to solve the problem by combining Root and Usr into a single partition.
System administration is a little easier on systems with combined Root and Usr filesystems.
If you plan to use XLV logical volumes, you may want to put the XFS log into a small subvolume. This requires disk repartitioning to create a small partition for the log subvolume.
If you plan to use XLV logical volumes, you may want to repartition to create disk partitions of equal size that can be striped or plexed.

Disk partitions are discussed in Chapter 1, "Disk Concepts," and using fx to repartition disks is explained in the section "Repartitioning a Disk With fx" in Chapter 2.