Linux Software RAID on CentOS 4.x

Setting up Linux Software RAID on CentOS

* * RAID is not a substitute for data backups! Always backup your data! * *

This document describes how to configure your system for Software RAID1 (mirroring) during the CentOS 4.x clean install. We will mirror data between two hard drives to prevent data loss in the event of a single hard drive failure.

The first section shows how to do a basic setup without LVM. The second section shows how to do LVM on top of software RAID.