Advanced Data Guarding User Guide

3-10 Advanced Data Guarding for the Smart Array 5300 Controller Reference Guide
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: d-ch3 System Setup.doc Last Saved On: 12/11/00 12:02 PM
Changing the Fault Tolerance Mode
Performance decreases in this order:
■
RAID 0 (highest performance, but no protection against drive failure)
■
RAID 1
■
RAID 5
■
RAID ADG
If performance is too low with your current fault tolerance method, it can be
improved by migrating to a different RAID level. Follow the steps outlined in
the section “Migrating an Existing Logical Drive to RAID ADG” earlier in
this chapter, and select a different RAID level at the appropriate step in the
sequence.