Administrator Guide

Recognize an Over-Temperature Condition
An alarm message is generated and displayed when an over-temperature condition on a system component occurs. Either a
minor or a major alarm is triggered.
● When the minor temperature alarm condition is met on the linecard or RPM, the fan speed is increased from 70% to 80%.
● When the major temperature alarm condition is met on the linecard or RPM, the fan speed is increased from 90% to 100%.
Over-temperature alarms are logged. Use the show alarms command to display the currently logged alarms.
To display the pre-configured sensor thresholds, use the show alarms threshold command.
Dell#show alarm threshold
-- Temperature Limits (deg C) --
---------------------------------------------------------------------------
Minor Off Minor Major Off Major Shutdown
linecard0 78 99 84 105 110
---------------------------------------------------------------------------
Minor Off Minor Major Off Major Shutdown
RPM0 35 40 43 48 NA
---------------------------------------------------------------------------
Minor Off Minor Major Off Major Shutdown
PEid100/Stack0 60 65 72 75 105
Dell#
NOTE: When the threshold is met, the system shuts down.
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
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Debugging and Diagnostics