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Eシリーズシェルフの過熱イベント後、ライトバックキャッシュが無効になりました

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環境

  •  NetApp Eシリーズシステム
  •  NetApp SANtricity OS
  •  コントローラキャッシュおよびバッテリバックアップユニット(BBU)を搭載したシステム

問題

  • SANtricity が重大な事象「ECRFLT:DWEF300-2」を報告します
  • コントローラーのライトバックキャッシュが無効になっている
  • ディスクシェルフが危険な温度状態を報告
  • イベントログメッセージには、以下のいずれか、または複数が含まれます:

B:3/7/26, 1:06:45 PM (13:06:45) 17317 212c Write-back caching fully restored - Shelf 99, Bay B

B:3/6/26, 11:46:53 PM (23:46:53) 17287 212b Write-back caching forcibly disabled - Shelf 99, Bay B - Event: BAD BBU-0,1,2,3,4,5,6 <--CRITICAL
B:3/6/26, 11:31:47 PM (23:31:47) 17286 210a Controller cache not enabled or was internally disabled - Shelf 99, Bay B - Event: BAD BBU,Battery Unusable-0
B:3/6/26, 11:31:47 PM (23:31:47) 17285 3101 Asynchronous event notification (AEN) posted for recently logged event - Shelf 99, Bay B
----> Sense 6/3f/c6 = Unit Attention - Temperature sensor failed
----> FRU group: Subsystem; Tray ID: 99, Type : Temp Sensor, State: Failed
A:3/6/26, 11:31:49 PM (23:31:49) 17284 281c Maximum temperature exceeded - Shelf 99 <--CRITICAL

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