NetApp FAS 控制器关闭并显示多个机箱风扇故障警告，但只有一个机箱风扇 FRU 显示故障

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适用场景

问题描述

即使只有一个现场可更换单元（ FRU ）需要更换、控制器仍会因多个风扇故障而关闭。
可以生成类似于以下内容的 Autosupports ：

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

机箱系统风扇故障的 EMS 错误：

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)

机箱 IO风扇故障的 EMS 错误：

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系统传感器显示为FAN1_1、而Fan1_2 na 为状态。

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