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S12700 V200R010C00 Configuration Guide - Device Management

This document describes the principles and configurations of the Device Management features, and provides configuration examples of these features.
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Displaying the Temperature

Displaying the Temperature

Context

Extreme high or low device temperature may damage hardware. Use the following command to check the current device temperature.

Procedure

  • Run the display temperature { all | slot slot-id } command to view the device temperature.

FAQ

How Can I Determine Whether the Card Temperature Is too High?

The recommended operating temperature of a card typically ranges from 0°C to 45°C.

The card temperature is within the normal range if no high temperature alarm is generated on the card. The fan speed is automatically adjusted according to the temperature range to ensure that the card temperature is within the normal range.

The following is an example of high temperature alarms:
ENTITYTRAP_1.3.6.1.4.1.2011.5.25.219.2.10.13 hwBrdTempAlarm 140544 
ENTITYTRAP/1/ENTITYBRDTEMPALARM: OID [oid] Temperature rise over or fall below the warning alarm threshold.(Index=[INTEGER], 
ThresholdEntityPhysicalIndex=[INTEGER],EntityPhysicalIndex=[INTEGER], PhysicalName="[OCTET]", EntityThresholdType=[INTEGER],
EntityThresholdValue=[INTEGER],EntityThresholdCurrent=[INTEGER], EntityTrapFaultID=[INTEGER])
BASETRAP_1.3.6.1.4.1.2011.5.25.129.2.2.1 hwTempRisingAlarm 
BASETRAP/1/TEMRISING: OID [oid] Temperature exceeded the upper pr e-alarm limit.(Index=[INTEGER], BaseThresholdPhyIndex=[INT
EGER], ThresholdType=[ INTEGER], ThresholdIndex=[INTEGER], Severity=[INTEGER], ProbableCause=[INTEGER], EventType=[INTEGER], 
PhysicalName="[OCTET]", ThresholdValue=[INTEGER], Threshol dUnit=[INTEGER], ThresholdHighWarning=[INTEGER], ThresholdHighCrit
ical=[INTEGER] )

Why Is a High Temperature Alarm Generated and How Can This Alarm Be Cleared?

Possible Causes for a High Temperature Alarm
  • The device is not ventilated well, preventing heat dissipation.

  • The air filter is blocked by dust.

  • Vacant slots are not covered with filler panels.

  • The ambient temperature of the device is too high.

  • The number of fans on the device is insufficient.

  • A fan on the device is faulty.

  • The chip temperature is high.

Troubleshooting a High Temperature Alarm
  1. Clean the air filter and remove the objects that block the air exhaust area (if any). Cover all vacant slots with filler panels to ensure efficient heat dissipation. Then check whether the alarm is cleared.

    (1) If so, go to step 10.

    (2) If not, go to step 2.

  2. Check whether the ambient temperature of the device is too high.

    (1) If so, go to step 3.

    (2) If not, go to step 4.

  3. Lower the temperature in the equipment room, and then go to step 4.

  4. Check whether fans are properly installed in all slots.

    (1) If so, go to step 6.

    (2) If not, go to step 5.

  5. Ensure that fans are properly installed in all slots, and then go to step 6.
  6. Run the display fan command to check whether any fan is faulty according to the status of fans.

    (1) If so, go to step 7.

    (2) If not, go to step 8.

  7. Replace the faulty fan, and then go to step 8.
  8. Run the display temperature all command to view the temperature of each card on the device. Check whether the chip temperature of the card is high.

    (1) If so, go to step 9.

    (2) If not, go to step 10.

  9. Contact technical support personnel.
  10. End.

Determining Whether a High Temperature Alarm Is Cleared
  1. This alarm is not displayed on the NMS.
  2. This alarm is not displayed when you run the display trapbuffer command to view the trap buffer.
  3. This alarm is not displayed when you run the terminal monitor and terminal trapping commands to view alarm information.

How Can I Determine Whether and Why the Temperature Is Abnormal?

A High Temperature Causes the Abnormal Status in Temperature Information
The Status field in the display temperature all command output displays Minor.
<HUAWEI> display temperature all                                                                                                    
---------------------------------------------------------------                                                                     
 Slot  Card  Sensor   Status  Current(C)  Lower(C)   Upper(C)                                                                     
---------------------------------------------------------------                                                                     
 9     -     1        Minor   70          0           64                                                                           
       -     2        Normal   30          0           60                                                                           
 13    -     1        Normal   31          0           60                                                                           
       -     2        Normal   34          0           63                                                                           
 14    -     1        Normal   34          0           60                                                                           
       -     2        Normal   37          0           63                                                                           
 18    -     1        Normal   44          0           72                                                                           
       -     2        Normal   38          0           64                                                                           
       1     1        Normal   28          0           55      

Solution: See Why Is a High Temperature Alarm Generated and How Can This Alarm Be Cleared?.

The Card Monitoring Software Is Abnormal. As a Result, All Temperature Values Cannot Be Obtained and Display as 0
The Current(C), Lower(C), and Upper(C) fields in the display temperature all command output display 0.
<HUAWEI> display temperature all                                    
---------------------------------------------------------------                     
 Slot  Card  Sensor   Status   Current(C) Lower(C)  Upper(C)                 
---------------------------------------------------------------
 9     -     1        Normal   0          0         0
       -     2        Normal   0          0         0
 13    -     1        Normal   31          0           60                                                                           
       -     2        Normal   34          0           63                                                                           
 14    -     1        Normal   34          0           60                                                                           
       -     2        Normal   37          0           63                                                                           
 18    -     1        Normal   44          0           72                                                                           
       -     2        Normal   38          0           64                                                                           
       1     1        Normal   28          0           55      

Solution: Contact technical support personnel.

A Card Experiences a Hardware Fault. As a Result, the Temperature Cannot Be Obtained and Displays as 0
The temperature of a sensor of the card cannot be obtained and displays 0 in the display temperature all command output.
<HUAWEI> display temperature all                                    
---------------------------------------------------------------                     
 Slot  Card  Sensor   Status   Current(C) Lower(C)  Upper(C)                 
---------------------------------------------------------------
 9     -     1        Normal   0          0         0
       -     2        Normal   30          0           60
 13    -     1        Normal   31          0           60                                                                           
       -     2        Normal   34          0           63                                                                           
 14    -     1        Normal   34          0           60                                                                           
       -     2        Normal   37          0           63                                                                           
 18    -     1        Normal   44          0           72                                                                           
       -     2        Normal   38          0           64                                                                           
       1     1        Normal   28          0           55      

Solution: Contact technical support personnel.

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Updated: 2019-08-21

Document ID: EDOC1000142080

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