HP A7990A - StorageWorks SAN Director 4/16 Blade Switch, Hardware Reference Manual

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DC SAN Backbone Director hardware reference guide 59
Table 11 describes the power supply LED patterns and the recommended actions for those patterns.
Blower assembly
To determine the status of a blower assembly:
1. Check the LED indicators on the blower assembly ( Figure 24 ). The LED patterns may temporarily
change during POST and other diagnostic tests; for information about how to interpret the LED
patterns, see Table 12 .
2. Check the blower assembly status using the
fanShow
command.
The status for each blower assembly displays OK, Absent, or Faulty. The RPM of each fan in the
assembly is also provided. If a blower assembly is absent or faulty, contact HP.
Figure 24 displays the blower assembly.
Figure 24 Blower assembly
Table 11 Power supply LED descriptions
LED purpose Color Status Recommended action
Power No light
(LED is off)
Power supply does not have
incoming power and is not
providing power to the DC
Director.
Ensure power supply is firmly
seated, DC Director has
incoming power, both power
cables are connected, and AC
power switches are on.
Steady green Power supply has incoming
power and is providing power
to the DC Director.
No action required.
Flashing green Power supply is about to fail. Replace power supply.
1 Power LED 2 Fault LED
1
2