Specifications

Chapter 2 RAID Overview
21
Figure 2-4. Decision Tree for Choosing a RAID Level
RAID 0
Complete
Duplication
Required?
Data Protection
(Redundancy)
Required?
Number of
Disk Drives
RAID 1 RAID 10
Number of
Disk Drives?
RAID 5
RAID 50
Start
Yes No
Yes No
2
Disks
4 or more
Disks
3 or more
Disks
6 or more
Disks