Eシリーズ：温度が制限値を超えていると、ライトバックキャッシュが強制的に無効になります

• NetApp Eシリーズ
• バッテリバックアップユニット（BBU）

• 1回だけ AutoSupport / Eメール通知を受信し 、それ以上のエラーは発生しない

E-Series Notification (Write-back caching forcibly disabled) CRITICAL

• に表示される関連イベント Major Event Log：

 B:6/3/23, 5:11:51 AM (05:11:51) 39292 212b Write-back caching forcibly disabled - Shelf 99, Bay B - Event: BAD BBU-2,3 <--CRITICAL B:6/3/23, 5:00:10 AM (05:00:10) 39291 5023 Controller return status/function call for requested operation - Shelf 99, Bay B

 ---> Sense 6/3f/c6 = Unit Attention - Temperature sensor failed ----> FRU group: Subsystem; Tray ID: 99, Type : Temp Sensor, State: Warning A:6/3/23, 4:56:45 AM (04:56:45) 39285 281b Nominal temperature exceeded - Shelf 99, Controller 2, Bay inlet <--CRITICAL A:6/3/23, 4:56:45 AM (04:56:45) 39284 3101 Asynchronous event notification (AEN) posted for recently logged event - Shelf 99, Bay A ----> Sense 6/3f/c6 = Unit Attention - Temperature sensor failed ----> FRU group: Subsystem; Tray ID: 99, Type : Temp Sensor, State: Warning

 B:6/3/23, 4:56:49 AM (04:56:49) 39290 212c Write-back caching fully restored - Shelf 99, Bay B B:6/3/23, 4:56:46 AM (04:56:46) 39289 210a Controller cache not enabled or was internally disabled - Shelf 99, Bay B - Event: BAD BBU,Battery Unusable-2 A:6/3/23, 4:56:50 AM (04:56:50) 39288 212c Write-back caching fully restored - Shelf 99, Bay A A:6/3/23, 4:56:46 AM (04:56:46) 39287 210a Controller cache not enabled or was internally disabled - Shelf 99, Bay A - Event: BAD BBU,Battery Unusable-0 B:6/3/23, 4:56:45 AM (04:56:45) 39286 3101 Asynchronous event notification (AEN) posted for recently logged event - Shelf 99, Bay B