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Multiple sensors indicate LNC and LCR

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Category:
fas-systems
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hw
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Applies to

  • FAS2720
  • ONTAP 9

Issue

  • AutoSupport has repeatedly reported an abnormal SP reboot, which eventually resulted in a takeover.
System Alert from SP of node1 (REBOOT (abnormal)) WARNING
  • Multiple sensors are showing cr, LNC, and LCR statuses in SP-LATEST-IPMI.

======================================
hsamcmd --fault-show-all
===============================
tag  origin  fld                                     fault reason                                    count  time                       
---- ------- ----                                    -------------                                   ------ -----                      
1    bmc     /chassis-1/controller-a                 P3V3: Voltage Sensor 25 LNC                     1      Thu Aug 15 05:26:35 2024
2    bmc     /chassis-1/controller-a                 P3V3: Voltage Sensor 25 LCR                     1      Thu Aug 15 05:26:36 2024
3    bmc     /chassis-1/controller-a                 P12V: Voltage Sensor 32 LNC                     1      Thu Aug 15 05:26:36 2024
4    bmc     /chassis-1/controller-a                 P12V: Voltage Sensor 32 LCR                     1      Thu Aug 15 05:26:36 2024
5    bmc     /chassis-1/controller-a                 P12V_Curr: Current Sensor 34 LNC                1      Thu Aug 15 05:26:36 2024
6    bmc     /chassis-1/controller-a                 P12V_Curr: Current Sensor 34 LCR                1      Thu Aug 15 05:26:36 2024

P3V3             | 0.000      | Volts      | cr         | 2.958     | 3.028     | 3.570     | 3.658     
P3V3_BATT        | 2.888      | Volts      | ok         | 2.100     | 2.205     | 3.395     | 3.500     
P3V3_STBY        | 3.290      | Volts      | ok         | 2.958     | 3.028     | 3.570     | 3.658     
P1V15_STBY       | 1.157      | Volts      | ok         | 1.030     | 1.051     | 1.250     | 1.342     
Power_Good       | 0x0        | discrete   | Deasserted | na        | na        | na        | na        
Power_Proc_OK    | 0x0        | discrete   | Asserted   | na        | na        | na        | na        
P12V             | 0.186      | Volts      | cr         | 10.540    | 10.850    | 12.958    | 13.454    
P12V_STBY        | 11.966     | Volts      | ok         | 10.540    | 10.850    | 12.958    | 13.454    
P12V_Curr        | 0.000      | Amps       | cr         | 0.000     | 0.000     | 15.810    | 15.810 

  • The BMC firmware version is the newest .

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