Logical Volume Manager

From Wikipractice

Introduction

Logical Volume Manager (LVM) is an alternative system to partitioning. It allows logical volumes (i.e. virtual partitions) to be spread over many physical volumes (i.e. hard disks and/or partitions). LVM is supported on Linux version 2.4, and later.

One of the big advantage of LVM is the possibility to extend virtual partitions in adding physical one to them.