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Cisco Bug: CSCuq52233 - UCS 6296 FI reboot abnormally - Powered-down due to fan policy trigger

Last Modified

Dec 17, 2019

Products (1)

  • Cisco Unified Computing System

Known Affected Releases

2.2(1d)A

Description (partial)

Symptom:
UCS FI 6296 abnormally rebooted. Logs indicate is if all fan modules got removed while in reality there was no fan modules removed

`show logging nvram`
2014 Aug  8 13:55:56 uscha-c12-prd-ucs01-A %$ VDC-1 %$ Aug  8 13:55:56 %KERN-2-SYSTEM_MSG: [6739446.227304] clk_flush: Couldn't Clear Bus, Clock Low 0x00000004 - kernel
2014 Aug  8 13:55:56 uscha-c12-prd-ucs01-A %$ VDC-1 %$ Aug  8 13:55:56 %KERN-2-SYSTEM_MSG: [6739446.302565] clk_flush: Couldn't Clear Bus, Clock Low 0x00000004 - kernel
2014 Aug  8 13:55:56 uscha-c12-prd-ucs01-A %$ VDC-1 %$ Aug  8 13:55:56 %KERN-2-SYSTEM_MSG: [6739446.410022] clk_flush: Couldn't Clear Bus, Clock Low 0x00000004 - kernel
2014 Aug  8 13:55:56 uscha-c12-prd-ucs01-A %$ VDC-1 %$ Aug  8 13:55:56 %KERN-2-SYSTEM_MSG: [6739446.484767] clk_flush: Couldn't Clear Bus, Clock Low 0x00000004 - kernel
2014 Aug  8 13:56:06 uscha-c12-prd-ucs01-A %$ VDC-1 %$ %PFMA-0-SYS_SHUTDOWN_FAN_REMOVAL: System shutdown in 0 seconds due to fan removal
2014 Aug  8 13:56:06 uscha-c12-prd-ucs01-A %$ VDC-1 %$ Aug  8 13:56:06 %KERN-0-SYSTEM_MSG: [6739456.005922] Shutdown Ports.. - kernel
2014 Aug  8 13:56:07 uscha-c12-prd-ucs01-A %$ VDC-1 %$ Aug  8 13:56:06 %KERN-0-SYSTEM_MSG: [6739456.042534]  writing reset reason 104,  - kernel
2014 Aug  8 13:56:07 uscha-c12-prd-ucs01-A %$ VDC-1 %$ Aug  8 13:56:06 %KERN-2-SYSTEM_MSG: [6739456.119498] clk_flush: Couldn't Clear Bus, Clock Low 0x00000004 - kernel
2014 Aug  8 22:10:29  %$ VDC-1 %$ %USER-2-SYSTEM_MSG: CLIS: loading cmd files begin  - clis

Conditions:
Under normal operating condition. There was no user intervention of any kind
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