LVM Background

LVM is the established standard for linux on-line disk storage management included in 2.4 kernels.
LVM reached maturity with the 1.0 series with snapshots and the ability to move live volumes.
LVM2 is a new implementation relying upon a lightweight kernel driver, the Device Mapper.
The Device Mapper provides generic support for volume managers (including EVMS). It is included in 2.6 kernels.

LVM is the established standard for linux on-line disk storage management included in 2.4 kernels.