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 LVM 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 (LVM2 has read/write support for snapshots)
• RAID0 striping of LVs.

LVM does not implement RAID1 or RAID5 mirroring of LVs. Instead, it is recommended that one use the Linux software RAID driver to mirror the underlying PVs to achieve redundancy.

External links

• LVM2 Resource Page
• LVM-HOWTO
• LinuxDevCenter.com Article "Managing Disk Space with LVM"
• Read LVM2 from Windows

Linux software | Computer storage