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Monitoring Temperatures of Modules

You can view the temperature of each module by issuing the show environment all and show environment table commands. In addition, the system generates detailed log messages if the temperature of a module is outside normal operating limits.

If the temperature of any module exceeds the upper temperature limit, the system immediately goes into thermal protection mode. Once the system has entered thermal protection mode, you must resolve the cause of the high temperature.

Table 8-6 Troubleshooting high-temperature conditions 
Cause of High Operating Temperature
Symptoms
Resolution
Air vents to system are blocked
Space around system does not meet specifications (see Appendix A, System Specifications).
Increase space around system.
Ambient temperature exceeds specifications
Ambient temperature exceeds specifications (see Appendix A, System Specifications).
Provide extra cooling or heating in the room where the system is located.
Cooling fan failure
  • FAN OK LED on SRP module is not illuminated.
  • FAN FAIL LED on SRP module is illuminated.
Module failure
FAIL LED on module is illuminated.

When you have resolved the cause of the high temperature, you must power cycle the system to reset the modules.


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