AB291A Fabric Clustering System Support Guide (12-port Switch), April 2004

Chapter 6
Monitoring and Troubleshooting
Diagnosing Problems
105
The following command can be used on the switch to show power supply status from the CLI, and shows an
example of a failed Power Supply.
HP-IB# show power
============================================================================
Power-supply Information
============================================================================
ps type oper-status utilization voltage
----------------------------------------------------------------------------
1 AC up 55 12
2 AC failure na 12
NOTE It is possible that with a failed power supply, the System Status LED is yellow, and the Power
Supply LED stays green.
Fan Troubleshooting
The fan status light is located on the front in the middle of the fan tray, and the LED is visible through the
mesh of the bezel. The fan module contains three fans. The system requires at least two fans to remain
operational. If the fan needs to be replaced, see “Replacing a Fan Tray” on page 123.
The following command example can be used on the switch to determine individual fan status from the CLI.
HP-IB> show fan
========================================================================
Fan Information
========================================================================
fan oper-status speed
------------------------------------------------------------------------
1 up 80
2 up 68
3 up 74
green (AC OK) On (green) indicates AC input is present. Off indicates AC
input is not present.
Table 6-4 Fan LED Interpretation
color indication
green Blowers running with no detected errors.
yellow Fan error detected.
off No system power or LED failure.
slow blink, alternating
green/yellow (4 sec. interval)
LED test following application of power (16 seconds).
Table 6-3 Interpreting the Power Supply LEDs (Continued)
color description