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NFSv3クライアントでNFS lsコマンドがハングアップする

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Category:
ontap-9
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perf
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環境

  • ONTAP 9
  • NFS
  • NLM lock

問題

  • ONTAP 9.18.1P5を実行しているAFF-A900 MetroClusterのNFSボリュームで、ディレクトリ一覧表示（ls）が数秒間ハングします
  • NFSv3 READDIRの応答に14～41秒かかります
  • 同じボリュームに対するREAD、GETATTR、ACCESS、およびLOOKUPも遅くなりますが、そのボリュームはノード上で最もビジーなボリュームではありません

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