バッテリセンサーが読み取り不能であることによるノードのシャットダウン

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環境

ONTAP 9
BMC
バッテリ

問題

ノードで突然環境シャットダウンが実行される。EMSログでは次の情報を確認できます：

XXX XX XX:XX:XX [Cluster1:callhome.battery.failure:EMERGENCY]: Call home for BATTERY ('Bat Curr' unreadable) CRITICAL. XXX XX XX:XX:XX [Cluster1:callhome.battery.failure:EMERGENCY]: Call home for BATTERY ('Bat Charge Curr' unreadable) CRITICAL. XXX XX XX:XX:XX [Cluster1:callhome.battery.failure:EMERGENCY]: Call home for BATTERY ('Bat Initial FCC' unreadable) CRITICAL. XXX XX XX:XX:XX [Cluster1:nvmem.battery.packInvalid:EMERGENCY]: The incorrect NVMEM battery is installed. Expected part number is 271-00045. To prevent data loss, the system will shut down in 5 minutes. XXX XX XX:XX:XX [Cluster1:callhome.battery.failure:EMERGENCY]: Call home for BATTERY ('Bat Volt' unreadable) CRITICAL. XXX XX XX:XX:XX [Cluster1:callhome.battery.failure:EMERGENCY]: Call home for BATTERY ('Bat Full Cap' unreadable) CRITICAL. XXX XX XX:XX:XX [Cluster1:callhome.battery.failure:EMERGENCY]: Call home for BATTERY ('Bat Charge Volt' unreadable) CRITICAL. XXX XX XX:XX:XX [Cluster1:callhome.battery.failure:EMERGENCY]: Call home for BATTERY ('Bat Dstg Cycles' unreadable) CRITICAL. XXX XX XX:XX:XX [Cluster1:callhome.battery.failure:EMERGENCY]: Call home for BATTERY ('Bat Dcharge FET' unreadable) CRITICAL. XXX XX XX:XX:XX [Cluster1:callhome.battery.failure:EMERGENCY]: Call home for BATTERY ('Bat Charge FET' unreadable) CRITICAL. XXX XX XX:XX:XX [Cluster1:monitor.shutdown.emergency:EMERGENCY]: Emergency shutdown: Environmental Reason Shutdown (Battery current critical)

読み取り不能なセンサーからBMCが回復されました

Record 338: Sat Nov 08 00:11:11.149382 2025 [IPMI.warning]: Recovering BMC due to a non-readable sensor

バッテリー学習サイクルの開始と失敗が確認されます

次に、NVMEMバッテリの読み取り不能センサーのアラートが原因でノードがリブートします

Record 468: Sun Nov 09 00:12:49.406520 2025 [IPMI.emergency]: env_mgr triggers OS halt:Battery temp unreadable for 2 mins
Record 469: Sun Nov 09 00:13:23.584592 2025 [Controller.notice]: Appliance user command halt.
Record 470: Sun Nov 09 00:13:23.624175 2025 [IPMI.notice]: 0451 | 02 | EVT: 6f03ffff | Sensor 255 | Assertion Event, "Storage OS graceful shutdown"
Record 471: Sun Nov 09 00:13:25.340475 2025 [IPMI Event.critical]: System power down
Record 472: Sun Nov 09 00:13:25.344857 2025 [IPMI.emergency]: Data ONTAP initiated shutdown