HP A7143A RAID160 SA Controller Support Guide, February 2007

RAID Technology Overview
Choosing a RAID Method
Chapter 1
21
Choosing a RAID Method
Table 1-2 summarizes the advantages of each RAID method. Use this table to select the best RAID method for
your needs.
Table 1-2 Choosing a RAID Method
Most
Important
Also Important Suggested RAID Level
Fault tolerance Cost effectiveness RAID ADG
I/O performance RAID 1, RAID 1+0
Cost
effectiveness
Fault tolerance RAID ADG
I/O performance RAID 5 (RAID 0 if fault tolerance is not
required)
I/O performance Cost effectiveness RAID 5 (RAID 0 if fault tolerance is not
required)
Fault tolerance RAID 1, RAID 1+0