Advanced Data Guarding Option Software Reference Guide

Overview of RAID ADG
1-4 Compaq Advanced Data Guarding Option Software Reference Guide
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Writer: John Turner File Name: b-ch1 overview of RAID ADG
Codename: adg2 Part Number: 283954-001 Last Saved On: 5/22/02 12:41 PM
Figure 1-2: Relative probability of logical drive failure
for different RAID levels
1 6 11 16 21 26 31 36 41 46 51 56
Total number of physical drives in array
Increasing likelihood of logical drive failure > > >
RAID 0
RAID 5
RAID 1+0
RAID ADG