Next Previous Contents v. 0.90.7 19th of January 2000

This HOWTO describes how to use Software RAID under Linux. It addresses a specific version of the Software RAID layer, namely the 0.90 RAID layer made by Ingo Molnar and others. This is the RAID layer that will be standard in Linux-2.4, and it is the version that is also used by Linux-2.2 kernels shipped from some vendors. The 0.90 RAID support is available as patches to Linux-2.0 and Linux-2.2, and is by many considered far more stable that the older RAID support already in those kernels.

1. Introduction

• 1.1 Disclaimer
• 1.2 Requirements

2. Why RAID ?

• 2.1 Technicalities
• 2.2 Terms
• 2.3 The RAID levels
• 2.4 Swapping on RAID

3. Hardware issues

• 3.1 IDE Configuration
• 3.2 Hot Swap

4. RAID setup

5. Testing

• 5.1 Simulating a drive failure
• 5.2 Simulating data corruption

6. Reconstruction

• 6.1 Recovery from a multiple disk failure

7. Performance

• 7.1 RAID-0
• 7.2 RAID-0 with TCQ
• 7.3 RAID-5
• 7.4 RAID-10

8. Credits

Next Previous Contents