Filter
Top Products
2
RAID Types
2-11
RAID Types and Tradeoffs
Figure 2-6 How a Hot Spare Works
Hot spare
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
1. RAID 5 group consists of disk modules 0-4; RAID 1 mirrored pair is
modules 5 and 6; hot spare is module 9.
2. Disk module 3 fails.
3. RAID 5 group becomes modules 0, 1, 2, 9, and 4; now no hot spare is
available.
4. System operator replaces failed module 3 with a functional module.
5. RAID 5 group once again is 0-4 and hot spare is 9.