IBM SAN384B-2, Installation, Service And User Manual

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Power supply status
To determine the status of a power supply:
1. Check the LED indicators on each power supply (see Figure 28). The LED
patterns may temporarily change during POST and other diagnostic tests; for
information about how to interpret the LED patterns, see Table 11. Be sure to
check both power supplies.
2. Check the power supply status by entering psShow .
The power supply status displays OK , Absent , or Faulty . If a power supply
displays absent or faulty, contact IBM to order a replacement. Both "absent" or
"faulty" could also be the result of the power supply being turned off or not
being properly seated.
1
Power LED
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 SAN384B-2. Ensure that the
power supply is
firmly seated, the
SAN384B-2 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 SAN384B-2. No action required.
Flashing green Power supply is
about to fail. Replace the power
supply.
Blower assembly status
To determine the status of a blower assembly:
1. Check the LED indicators on each blower assembly (see Figure 29 on page 64).
The LED patterns may temporarily change during POST and other diagnostic
tests; for information about how to interpret the LED patterns, see Table 12 on
page 64. Be sure to check both blower assemblies.
1
384b012
Figure 28. Power supply
Chapter 4. Monitoring system components
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