HP ProLiant DL380 Smart Array 5i Plus Controller and Battery Backed Write Cach - Page 106
E-1, Probability of logical drive failure
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Probability of Logical Drive Failure Total number of physical drives in array 0.01 Relative likelihood of logical drive failure 1 5 9 13 17 21 25 29 33 37 41 45 49 53 57 0.001 RAID 0 0.0001 1E-05 1E-06 1E-07 RAID 5 RAID 1 1E-08 1E-09 RAID ADG 1E-10 1E-11 1E-12 1E-13 Figure E-1: Probability of logical drive failure E-2 Compaq Smart Array 5i Plus Controller and Battery Backed Writer Cache Enabler User Guide
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Probability of Logical Drive Failure
E-2
Compaq Smart Array 5i Plus Controller and Battery Backed Writer Cache Enabler User Guide
1E-13
1E-12
1E-11
1E-10
1E-09
1E-08
1E-07
1E-06
1E-05
0.0001
0.001
0.01
1
5
9
13
17
21
25
29
33
37
41
45
49
53
57
Total number of physical drives in array
Relative likelihood of logical drive failure
RAID 0
RAID 5
RAID 1
RAID ADG
Figure E-1:
Probability of logical drive failure