80% CPU threshold alarms on Force 10 device even though CA Spectrum CPU threshold set to 85%

Document ID : KB000056606
Last Modified Date : 14/02/2018
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ISSUE: 80% CPU threshold alarms on Force 10 device even though CA Spectrum CPU threshold set to 85%

 

ROOT CAUSE: The CPU threshold alarm is from the device chAlarmExdCpuThreshold trap mapped in the $SPECROOT/SS/CsVendor/Force10/AlertMap file not from the Spectrum CPU threshold functionality configured in the Thresholds and Watches -> Thresholds subview in the Information tab of the model.

The out of the box device CPU thresholding functionality generates the 0x10f03 event when the CPU threshold is exceeded.

Major Dec 12, 2014 2:00:38 PM EST Sim22457:fm0515-002(tefnut) High CPU Utilization.  The utilization of 88% for CPU instance 2 named 'CPU: 2' has exceeded the 80% threshold on model Sim22457:fm0515-002(tefnut) for more than the acceptable time period. System   0x10f03

 

 

The chAlarmExdCpuThreshold trap generates event 0x5bc0026:

Nov 24, 2014 9:00:55 PM EST fs0515-804 "A ""chAlarmExdCpuThreshold"" event has occurred, from Force10SwRtr device, named fs0515-804.

The CPU utilization has exceeded 80%.

chAlarmVarInteger = 4

chAlarmVarString = CPU_THRESHOLD: Overall cp cpu usage above threshold.

Cpu5SecUsage (80)

chAlarmVarSlot = 49

chAlarmVarPort = -1" Major System Nov 24, 2014 9:01:00 PM

EST 0x5bc0026 System Force10SwRtr 10

 

The following is the $SPECROOT/SS/CsVendor/Force10/AlertMap file configuration for the chAlarmExdCpuThreshold trap:

# chAlarmExdCpuThreshold                 chAlarmVarInteger

1.3.6.1.4.1.6027.3.1.1.4.0.37 0x05bc0026 1.3.6.1.4.1.6027.3.1.1.4.1.1(1,0)\

                                         # chAlarmVarString

                                         1.3.6.1.4.1.6027.3.1.1.4.1.2(2,0)\

                                         # chAlarmVarSlot

                                         1.3.6.1.4.1.6027.3.1.1.4.1.3(3,0)\

                                         # chAlarmVarPort

                                         1.3.6.1.4.1.6027.3.1.1.4.1.4(4,0)

 

The following is the $SPECROOT/SS/CsVendor/Force10/EventDisp file configuration for the 0x05bc0026 event:

0x05bc0026 E 20 A 2,0x05bc0026,3,4

 

RESOLUTION: Check with the vendor on how to increase the CPU threshold on the device for the chAlarmExdCpuThreshold trap