NetApp FAS controller shutdowns with multiple chassis fan failed warnings, but only one chassis fan FRU is showing failed

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Views:: 2,987

Visibility:: Public

Votes:: 1

Category:: fas-systems

Specialty:: hw

Last Updated:

Applies to

Issue

Controller shuts down with multiple fan failure even though only one field-replaceable unit (FRU) needs a replacement.
Autosupports similar to the following can be generated:

HA Group Notification (MULTIPLE CHASSIS FAN FAILED: System will shut down in 2 minutes) ERROR

HA Group Notification (Health Monitor process nphm: NphmCriticalFanFruFaultAlert[xxxxxxxxxxxx]) CRITICAL

HA Group Notification (CHASSIS FAN FRU FAILED: SysFan1 F1) ERROR

HA Group Notification (CHASSIS FAN FRU FAILED: SysFan1 F2) ERROR

EMS errors for chassis SysFan failure:

Jun 05 00:35:42 [cluster-n01:monitor.chassisFanFail.xMinShutdown:EMERGENCY]: Multiple Chassis Fan failure: System will shut down in 2 minutes. Jun 05 00:36:00 [cluster-n01:monitor.globalStatus.critical:EMERGENCY]: Multiple fans has failed: SysFan1 F2, SysFan1 F1. Jun 05 00:38:07 [cluster-n01:monitor.shutdown.emergency:EMERGENCY]: Emergency shutdown: Environmental Reason Shutdown (Multiple fans failed)

EMS errors for chassis IOfan failure:

Feb 27 14:06:51 [cluster-n01:monitor.chassisFanFail.xMinShutdown:EMERGENCY]: Multiple Chassis Fan failure: System will shut down in 2 minutes. Feb 27 14:07:00 [cluster-n01:monitor.globalStatus.critical:EMERGENCY]: Multiple fans has failed: IOfan3 F1, IOfan3 F2. Feb 27 14:09:21 [cluster-n01:monitor.shutdown.emergency:EMERGENCY]: Emergency shutdown: Environmental Reason Shutdown (Multiple IO fans failed)

SP/BMC system sensors appear FAN1_1 and Fan1_2 are na status.

Fan1_1 | na | RPM | na | na | 600.000 | 900.000 | na | na | na Fan2_1 | 12600.000 | RPM | ok | na | 600.000 | 900.000 | na | na | na Fan3_1 | 12600.000 | RPM | ok | na | 600.000 | 900.000 | na | na | na Fan4_1 | 12600.000 | RPM | ok | na | 600.000 | 900.000 | na | na | na Fan1_2 | na | RPM | na | na | 600.000 | 900.000 | na | na | na Fan2_2 | 12700.000 | RPM | ok | na | 600.000 | 900.000 | na | na | na Fan3_2 | 12700.000 | RPM | ok | na | 600.000 | 900.000 | na | na | na Fan4_2 | 12700.000 | RPM | ok | na | 600.000 | 900.000 | na | na | na