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Junior — Middle

Can you list the main components and entities used in a Logical Volume Management (LVM) system?

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Answer from AI

Main components and entities of the Logical Volume Management (LVM) system:

  • Physical Volume (PV) — a physical disk or partition used by LVM.
  • Volume Group (VG) — a group of physical volumes combined into a single logical space.
  • Logical Volume (LV) — a logical partition created within a Volume Group, used as a regular filesystem partition.
  • Physical Extent (PE) — the smallest block of space on a physical volume allocated for logical volumes.
  • Logical Extent (LE) — a block of space within a logical volume, corresponding to one or more physical extents.

LVM allows flexible management of disk space: expanding, shrinking, and moving logical volumes without data loss.