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Power supply and fan status LED patterns
Each power supply has one LED ( 1 in Figure 16 on page 33) next to the AC
power switch. This LED indicates the status of the power supply. Table 9 describes
the meaning of different displays of the LEDs and recommended action, if any.
Table 9. Power supply status LED patterns
LED color
Status of hardware
No light
Indicates one of the following:
v Power supply FRU is switched off
v Power supply FRU is not seated correctly
v Power cord is disconnected
v Power cord is not actively powered
v The power supply FRU has failed
Steady green
Power supply is operating normally.
Steady amber
Indicates one of the following:
(for more than
v Power supply FRU is switched off
5 seconds)
v Power supply FRU is not seated correctly
v The power cable is disconnected
v The power supply FRU has failed
Note: When the switch is first powered on
the power supply status LED will show
amber until POST has completed.
Each fan assembly has one LED ( 2 in Figure 16 on page 33) next to the fan
assembly handle. Table 10 describes the meaning of different displays of the LEDs
and recommended action, if any.
Table 10. Fan status LED patterns
LED color
Status of hardware
No light
Indicates one of the following:
v Fan FRU is not seated correctly
v Fan FRU is not receiving power
Steady green
Fan assembly is operating normally.
Steady amber
Indicates one of the following:
(for more than
v Fan FRU is not seated correctly
5 seconds)
v One or more of the fans in the fan FRU has
failed
v The fan FRU was disabled by the user.
Note: When the switch is first powered on
the fan status LED will show amber until
POST has completed.
Interpreting POST results
POST is a system check that is performed each time the switch is powered on,
rebooted, or reset, and during which the LEDs may flash amber or green, or
remain steady. Total boot time with POST may take up to 3 minutes.
34
SAN32B-E4 Installation, Service, and User Guide
Recommended action
Try the following:
v Verify that the power supply FRU is powered on
v Verify that the power supply FRU is seated
correctly
v Check the power cable connections
v Replace the power supply FRU
No action required.
Try the following:
v Verify that the power supply FRU is powered on
v Verify that the power supply FRU is seated
correctly
v Check the power cable connection
v Replace the power supply FRU
Recommended action
Try the following:
v Verify that the fan FRU is seated correctly
v Verify that the switch is powered on.
No action required.
Try the following:
v Verify that the fan FRU is seated correctly
v Verify that the fan FRU is enabled (use the
fanEnable command)
v Replace the fan FRU
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