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CONTAP-276644:FPolicy を有効にすると、フロー制御が原因でクライアント IO レイテンシが高くなることがある。

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問題

  • ONTAP 9.14.1以降のリリースでFPolicyが設定されている場合、頻繁にフロー制御が発生することでクライアントIOレイテンシが高くなる可能性があります。
  • フロー制御が発生するたびにEMSが発生します：
    [netapp-02: kernel: Nblade.fpolicy.flow.control:error]: FPolicy flow control is engaged as the monitored file operations rate crossed the sustainable limit[13000] for this platform.

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