1
I/O group 0
2
SAN Volume Controller node A
3
2145 UPS-1U A
4
SAN Volume Controller node B
5
2145 UPS-1U B
6
I/O group 1
7
SAN Volume Controller node C
8
2145 UPS-1U C
9
SAN Volume Controller node D
10
2145 UPS-1U D
11
Redundant ac power switch 1
12
Redundant ac power switch 2
Figure 7. A four-node SAN Volume Controller cluster with the redundant ac power switch
feature
Chapter 3. Redundant ac power switch 21
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