Active@ Partition Recovery

Active@ Partition Recovery


Logical Volume Manager (Linux)

Logical Volume Manager (LVM) is a device mapper target that provides logical volume management for the Linux kernel. Most modern Linux distributions are LVM-aware to the point of being able to have their root file systems on a logical volume.

LVM is used for the following purposes:

  • Creating single logical volumes of multiple physical volumes or entire hard disks (somewhat similar to RAID 0, but more similar to JBOD), allowing for dynamic volume resizing.
  • Managing large hard disk farms by allowing disks to be added and replaced without downtime or service disruption, in combination with hot swapping.
  • On small systems (like a desktop), instead of having to estimate at installation time how big a partition might need to be, LVM allows filesystems to be easily resized as needed.
  • Performing consistent backups by taking snapshots of the logical volumes.

LVM can be considered as a thin software layer on top of the hard disks and partitions, which creates an abstraction of continuity and ease-of-use for managing hard drive replacement, repartitioning and backup












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