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Logical Volume Manager (Linux)

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LVM is an implementation of a logical volume manager for the Linux kernel. It was originally written in 1998 by Heinz Mauelshagen, who based its design on that of the Veritas Volume Manager in HP-UX.

LVM includes most of the features expected of a volume manager, including:

  • Online resizing of VGs
  • Online resizing of LVs
  • Read-only snapshotting
  • RAID0 striping of LVs.

LVM does not implement RAID1 or RAID5 mirroring of LVs. Instead, Sistina recommends using the Linux software RAID driver to mirror the underlying PVs to achieve redundancy.

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