IBM Storwize V7000 Unified Quick Installation Manual page 78

Figure 45. LEDs on the power supply units of the expansion enclosure
Powering on a control enclosure:
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IBM Storwize V7000 Unified: Model 2073-720 Quick Installation Guide
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Table 19. LED status rear of expansion enclosure.
Hardware component
Expansion canister, rear. The
reference to the top and
bottom locations applies to
canister 1, which is the upper
canister. The LED locations
are inverted for canister 2,
which is the lower canister.
Power supply unit,
expansion enclosure. The
reference to the left and right
locations applies to power
supply unit 1, which is the
left power supply. The LED
locations are inverted for
power supply unit 2, which
is the right power supply.
LED name and symbol
Canister status, top
Fault status, bottom
SAS ports
Power supply, upper right
Fan failure
dc power failure
ac power failure
1
If power on and no fault is
detected
LED is on.
LED is off.
When a SAS port is
functioning correctly, all four
green LEDs above the port
are on. If no cable is plugged
into the port, or if the
canister at either end of the
cable is not yet fully started,
the LEDs are not on.
LED is on.
LED is off.
LED is off.
LED is off.