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ドライブの障害が原因のEシリーズのパフォーマンス問題

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環境

Eシリーズ

問題

  • Eシリーズホストから、すべてのボリュームまたは一部のボリュームでパフォーマンスの問題が報告される
  • MAJOR-EVENT-LOG (MEL)表示 Slow drive detected by drive performance analyzer またはその他のドライブチェック条件

A:6/29/23 9:39:39 PM (21:39:39) 45373 1021 Slow drive detected by drive performance analyzer. Info for Analysis Purposes - Shelf 99, Drawer 5, Bay 6 <--DEBUG
A:6/29/23 9:39:39 PM (21:39:39) 45372 1021 Slow drive detected by drive performance analyzer. Info for Analysis Purposes - Shelf 99, Drawer 3, Bay 3 <--DEBUG

  • MELはエラーを報告しない場合もあります。ただし、ホスト側では、次のようなツールを使用して、1台のドライブのレイテンシが他のドライブよりも高くなっていることがわかります。 iostat

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