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Cisco Bug: CSCuq52499 - Suppress UCSM fault when blade's CPU temp sens crosses thresholds

Last Modified

Oct 15, 2018

Products (1)

  • Cisco Unified Computing System

Known Affected Releases

2.1(3b)A

Description (partial)

Symptom:
UCSM fault is triggered from IOM when a CPU on a blade in that chassis  crosses the UNC/UC threshold
CA-SCALE-1-A# show fault | grep "F0409"       <<< FAULT PROPOGATED TO UCSM, which should be suppressed>>>>
Major     F0409    2014-08-13T19:13:15.914  37414608 Thermal condition on chassis 6. IOM-B reports: Threshold crossing of thermal sensor reading on blades(7); IOM-A reports: Threshold crossing of thermal sensor reading on blades(7);

Conditions:
When CPU temp sens crosses threshold, but can happen for other blade components too

Steps to repro

Start with clean config:
 
Wed Aug 13 19:11:40 IBMC-SLOT[7] # ipmi-query sensors temp | grep _TEMP_SENS
P1_TEMP_SENS     | 32.000  | degrees C    | OK     | na      | na      | na      | 85.000  | 90.000  | 95.000  |
P2_TEMP_SENS     | 35.500  | degrees C    | OK     | na      | na      | na      | 85.000  | 90.000  | 95.000  |
Wed Aug 13 19:11:46 IBMC-SLOT[7] #
 
cmc0-A4934CC7F258:/obfl# fancontrol -g
Fan 0 Speed (FRONT): 3813
Fan 0 Speed (REAR): 3924
Fan 1 Speed (FRONT): 3693
Fan 1 Speed (REAR): 3904
Fan 2 Speed (FRONT): 3778
Fan 2 Speed (REAR): 3786
Fan 3 Speed (FRONT): 3768
Fan 3 Speed (REAR): 4000
Fan 4 Speed (FRONT): 3604
Fan 4 Speed (REAR): 3797
Fan 5 Speed (FRONT): 3778
Fan 5 Speed (REAR): 3851
Fan 6 Speed (FRONT): 3703
Fan 6 Speed (REAR): 3805
Fan 7 Speed (FRONT): 3792
Fan 7 Speed (REAR): 3868
 
CA-SCALE-1-A# show fault | grep "F0409"     <<< NO FAULT IN UCSM >>>>
CA-SCALE-1-A#
 
Wed Aug 13 19:11:46 IBMC-SLOT[7] # echo BA > 78
Wed Aug 13 19:12:51 IBMC-SLOT[7] # echo BA > 79
 
Wed Aug 13 19:12:53 IBMC-SLOT[7] # ipmi-query sensors temp | grep _TEMP_SENS
P1_TEMP_SENS     | 93.000  | degrees C    | UC     | na      | na      | na      | 85.000  | 90.000  | 95.000  |
P2_TEMP_SENS     | 93.000  | degrees C    | UC     | na      | na      | na      | 85.000  | 90.000  | 95.000  |
Wed Aug 13 19:12:57 IBMC-SLOT[7] #
 
CA-SCALE-1-A# show fault | grep "F0409"       <<< FAULT PROPOGATED TO UCSM, which should be suppressed>>>>
Major     F0409    2014-08-13T19:13:15.914  37414608 Thermal condition on chassis 6. IOM-B reports: Threshold crossing of thermal sensor reading on blades(7); IOM-A reports: Threshold crossing of thermal sensor reading on blades(7);
CA-SCALE-1-A#
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