Managing disk space used to be a royal pain for admins and users. Running out of disk space often meant reinstalling Linux or spending a few hours with tools like Parted to resize partitions. However, using the Logical Volume Manager (LVM) tools, you can grow, shrink, and manage disk space with very little hassle.
Before jumping into the details of setting up LVM, you need to familiarize yourself with LVM terminology. LVM refers to a typical partition as a Physical Volume (PV). A Volume Group (VG) comprises one or more physical volumes. Each volume group must be divided into Logical Volumes (LV).