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6. Start the subsystem:
a) Plug in the subsystem's power cord, if it is not already plugged in.
b) On all expansion enclosures, turn on all ac input power entry controllers.
c) On the master enclosure, turn all ac input power entry controllers.
7. Verify that the amber device fault LED is OFF.
When the SCSI bus is active and the disk drive SBB has
power, the green device activity LED is ON, FLASHING, or
OFF. The amber device fault LED is OFF.
5.8
Power Supply SBB Replacement
Two methods are available for replacing power supply SBBs: hot swap and cold swap.
However, before replacing a power supply, read all cautions, handling rules, and
replacement procedures, as well as determining the replacement method based on the
capabilities of the array controller.
Figure 5–6 Location of the Power Supply SBB
EK–SMCPR–UG. A01
Chapter 5. Replacing Components
NOTE
SHR-1166
5–19
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