IBM Storwize V7000 Unified Manual page 43

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Figure 5. Rear view of a Storwize V7000 Gen1 expansion enclosure
Power supply unit 1 (left) and power supply unit 2 (right), and LED detail as
shown.
Figure 6 shows the rear view of a file module with the power supplies ( 1 and
2 ) on the right.
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Figure 6. Rear view of file module (2073-720) with the power supplies (1 and 2).
Plan to connect the power cords of the auto-sensing power supplies on the left side
of the rack (when viewed from the rear) to one power source that provides power
in the range 100V - 240V ac. Plan to connect the power cords of the power supplies
on the right side of the rack to another 100V - 240V ac power source. Using two
power sources provides power redundancy.
Uninterruptible power supply
An uninterruptible power supply (UPS) can keep the system powered for some
limited time after power to the rack has been interrupted. The choice of an UPS
depends mainly on the length of time required to maintain access to your storage,
after the rack power has been interrupted. There is no provision for the file
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Chapter 2. Planning for adding file modules
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