Advanced Data Guarding User Guide

Introduction: RAID ADG 1-3
Compaq Confidential – Need to Know Required
Writer: John Turner Project: Advanced Data Guarding for the Smart Array 5300 Controller Reference Guide Comments: final draft
Part Number: 188270-xx1 File Name: b-ch1 RAID ADG.doc Last Saved On: 12/11/00 12:04 PM
M
OST IMPORTANT
A
LSO IMPORTANT
S
UGGESTED
RAID L
EVEL
Cost effectiveness
RAID ADG
Fault tolerance
I/O performance
RAID 0+1
Fault tolerance
RAID ADG
Cost effectiveness
I/O performance
RAID 5 (RAID 0 if fault
tolerance is not required)
Cost effectiveness
RAID 5 (RAID 0 if fault
tolerance is not required)
I/O performance
Fault tolerance
RAID 0+1
Figure 1-2. Choosing a RAID method