Temperature Threshold Violations - Cisco 9134 - MDS Multilayer Fabric Switch Troubleshooting Manual

Chapter 4 Troubleshooting Hardware
S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m

Temperature Threshold Violations

Each module in the chassis has at least two temperature sensors. Each temperature sensor is configured
with a minor and a major threshold.
command sample output. It shows how temperature information can be retrieved from the switch.
Choose Physical > Temperature Sensors on Device Manager to view a similar output.
Example 4-3
switch# show environment temperature
---------------------------------------------------------------
Module
---------------------------------------------------------------
4
4
5
5
6
6
9
9
The intake sensor, located at the airflow intake on the module, is the most critical indicator of module
temperature. All Cisco SAN-OS actions are taken when the major threshold of an intake sensor is
exceeded.
A minor threshold violation or a major threshold violation on an outlet sensor results in the following
system message:
Error Message PLATFORM-0-MOD_TEMPMAJALRM: Module [dec] reported major temperature
alarm.
This violation also generates a Call Home event and an SNMP notification.
A major temperature threshold violation on a module intake sensor results in the following system
message:
Error Message PLATFORM-0-MOD_TEMPSHUTDOWN: Module [dec] powered down due to major
temperature alarm.
OL-9285-05
Output of show environment temperature Command
Sensor MajorThresh
(Celsius)
Outlet 75
Intake 65
Outlet 75
Intake 65
Outlet 75
Intake 65
Outlet 75
Intake 65
Module in the slot exceeded a major temperature threshold.
Explanation
Enter the show environment temperature CLI command or choose Physical
Recommended Action
> Temperature Sensors on Device Manager to collect more information.
Explanation Module shutdown due to temperature exceeding major threshold.
Enter show environment temperature CLI command or similar Fabric
Recommended Action
Manager/Device Manager command to collect more information.
Example 4-3 gives the show environment temperature CLI
MinorThres CurTemp
(Celsius) (Celsius)
60 36
50 29
60 35
50 34
60 35
50 34
60 45
50 40
Cisco MDS 9000 Family Troubleshooting Guide, Release 3.x
Temperature Threshold Violations
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