LVM

LVM is the Logical Volume Manager that is used under Linux to manage sets of disks and enable a flexable partitioning system.

More info can be found at the following sites: 1. http://tldp.org/HOWTO/LVM-HOWTO/ 1. http://sourceware.org/lvm2/ 1. http://en.wikipedia.org/wiki/LogicalVolumeManager_(Linux)

I use it now on all my machines as it has got me out of a problem or two in the past.