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The Logical Volume Manager (LVM)
Overview
Volume Management creates a layer of abstraction over the storage. Applications use a virtual storage, which
is managed using a volume management software, a Logical Volume Manager (LVM). This LVM hides the
details about where data is stored, on which actual hardware and where on that hardware, from the entire
system. Volume management lets you edit the storage configuration without actually changing anything on
the hardware side, and vice versa. By hiding the hardware details it completely separates hardware− and
software storage management, so that it is possible to change the hardware side without the software ever
noticing, all during runtime.
With LVM system uptime can be enhanced significantly, because for changes in the storage configuration
no application has to be stopped any more. A Volume Manager puts the physical entities (Physical Volumes) into storage pools called Volume Groups.
The LVM in SuSE Linux can manage whole SCSI− or IDE−disks and partitions in a Volume Group and
also hardware− and even software RAID devices.
| Publisher | Sistina Software | File Format | PDF, requires Acrobat Rdr 5 |
|---|---|---|---|
| Date Published | April 2002 | Downloads | 28 |
| Format | White Papers | ||
| Topics | |||
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