The Cuddletech Veritas Volume Manager Series

RAID Theory: An Overview

Ben Rockwood

CDLTK
Cuddletech

benr@cuddletech.com

Revision History
Revision v1.0	April 08th 2002	Revised by: br
Initial conversion to DocBook
Revision v0.9	June 11th 2002	Revised by: br
SGML Cleanup

This is the first paper in The Cuddletech Veritas Volume Manager Series. Concepts of RAID (Redundant Array of Inexpensive/Independant Disks) are discused in detail.

Table of Contents

1. RAID: That it is; What it does

2. RAID: The Details

2.1. RAID Type: Concatenation
2.2. RAID Type: Striping (RAID-0)
2.3. RAID Type: Mirroring (RAID-1)
2.4. RAID Type: Stripping plus Mirroring (RAID-0+1)
2.5. RAID Type: RAID-5 (Striping with Parity)
2.6. RAID Comparison: RAID0+1 vs RAID5

3. RAID History: The Lost Brothers

4. Conclusion: Closing Notes