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E-Series Temperature sensor status is UNKNOWN with the alert "MAX_TEMP_EXCEEDED"

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Applies to

 NetApp E-series

Issue

  • Temperature sensor status is UNKNOWN.

Temperature sensor status:  UNKNOWN            
Location:                   Tray 99, Sensor 1  
Temperature sensor status:  UNKNOWN            
Location:                   Tray 99, Sensor 2  

  • The RECOVERY-GURU-PROCEDURES shows Failure Entry: MAX_TEMP_EXCEEDED-Recovery Failure Type Code: 8

Storage array: NetappE
Component reporting problem: Thermal sensor
Status: UNKNOWN
Location: Controller/Drive Tray 99 Tray 99, Sensor 1
Component requiring service: Temperature sensor
Tray: Controller/Drive tray 99

  • By the MEL (MAJOR-EVENT-LOG) shows the problem that occurred on the affected controller. 

A:2020/4/28 下午 04:54:04 (08:54:04) 9658 281c Maximum temperature exceeded - Tray 99 <--CRITICAL
A:2020/4/28 下午 04:54:04 (08:54:04) 9657 281c Maximum temperature exceeded - Tray 99 <--CRITICAL
A:2020/4/28 下午 04:54:04 (08:54:04) 9656 3101 Asynchronous event notification (AEN) posted for recently logged event - Tray 99, Slot A
----> Sense 6/3f/c6 = Unit Attention - Temperature sensor failed
----> FRU group: Subsystem; Tray ID: 99, Type : Temp Sensor, State: Failed

 

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