A simple introduction to working with LVM
The logical volume manager allows you to create and manage the storage of your servers in a very useful manner; adding, removing, and resizing partitions on demand. Getting started with LVM can be a little confusing to newcomer so this guide intends to show the basics in a simple manner.
There several pieces of terminology that you'll need to understand to make the best use of LVM. The most important things you must know are:
physical volumes -
These are your physical disks, or disk partitions, such as /dev/hda or /dev/hdb1. These are what you'd be used to using when mounting/unmounting things. Using LVM we can combine multiple physical volumes into volume groups.
volume groups
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