Troubleshoot An Over-Temperature Condition - Dell C9000 Series Networking Configuration Manual

Troubleshoot an Over-Temperature Condition

To troubleshoot an over-temperature condition, determine the sensor(s) that triggered the over-temperature
alarm by displaying the current temperature levels and the historical logs of the temperature threshold-
crossing events.
The RPM has CP and LP card whose sensor temperature are monitored. Similarly the Linecard's sensor is
monitored as well. The "show alarm threshold" provides the temperature threshold values for Linecards and
RPM.
The Threshold values of linecard applies to linecards 0 – 9 as well as the LP card residing in RPM. The
threshold value of RPM applies to the CP card. Under minor temperature alarm condition in any of the
components (Linecard or RPM), the Fan speed is increased from 70% to 80%. Under major temperature alarm
condition in any of the components (Linecard or RPM), the Fan speed is increased from 90% to 100%.
The following example syslogs zfdtemperature alarm condition in the system.
Jun 18 01:49:03: %RPM1-P:CP %CHMGR-2-MINOR_TEMP: Minor alarm: chassis temperature
(linecard 0 temperature reaches or exceeds minor threshold of 99C)
Jun 18 01:54:30: %RPM1-P:CP %CHMGR-2-MAJOR_TEMP: Major alarm: chassis temperature
high (RPM 1 temperature reaches or exceeds threshold of 48C)
Jun 18 01:55:22: %RPM1-P:CP %CHMGR-2-MAJOR_TEMP: Major alarm: chassis temperature
high (linecard 11 temperature reaches or exceeds threshold of 105C)
Examples of Syslog Temperature Alarm Conditions
The following are example syslogs temperature alarm conditions in the system.
Jun 18 01:49:03: %RPM1-P:CP %CHMGR-2-MINOR_TEMP: Minor alarm: chassis temperature
(linecard 0 temperature reaches or exceeds minor threshold of 99C)
Jun 18 01:54:30: %RPM1-P:CP %CHMGR-2-MAJOR_TEMP: Major alarm: chassis temperature
high (RPM 1 temperature reaches or exceeds threshold of 48C)
Jun 18 01:55:22: %RPM1-P:CP %CHMGR-2-MAJOR_TEMP: Major alarm: chassis temperature
high (linecard 11 temperature reaches or exceeds threshold of 105C)
Examples of Syslog with a Critical Temperature Threshold Event
When the system experiences a high temperature on any temperature sensor that exceeds the Critical
threshold, a shutdown log event is generated as show in the following examples:
Dell#Jun 18 01:57:03: %RPM1-P:CP %CHMGR-2-TEMP_SHUTDOWN_WARN: WARNING! linecard 11
temperature is 110C; approaching shutdown threshold of 110C)
Dell#Jun 18 01:57:04: %RPM1-P:CP %CHMGR-0-TEMP_SHUTDOWN_WARN: linecard 11
temperature exceeded or equal to shutdown temperature 110C; Unit will shutdown
now.Power cycle the unit to power it on.
Example of Displaying Temperature threshold Values for Linecards and RPM
Dell#show alarm threshold
Debugging and Diagnostics 380