Management of Linux physical volumes (PV), logical volumes (LV), and volume groups (VG)

In Linux, a Physical Volume (PV) refers to a physical device such as a disk partition or disk used for storing Logical Volumes (LV). A Logical Volume (LV) is a virtual storage volume consisting of one or more Physical Volumes. The size of a Logical Volume can be dynamically adjusted as needed, without the need for repartitioning. Logical Volumes can be formatted with a file system and used for storing data. A Volume Group (VG) is a collection of Logical Volumes made up of one or more Physical Volumes. Volume Groups provide flexible storage management by combining multiple Physical Volumes into one group, increasing storage capacity and performance, and achieving high availability and redundancy of data. In Linux, Logical Volume Management (LVM) can be used to manage Physical Volumes, Logical Volumes, and Volume Groups. LVM provides a set of commands and tools for creating, deleting, resizing, and managing Physical Volumes, Logical Volumes, and Volume Groups, making it easy to manage storage space, dynamic resizing of Logical Volumes, and creating snapshots and mirrors.