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リモートサイトの FPolicy サーバが原因で FPolicy を有効にしたあとにレイテンシが高くなる

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Category:
ontap-9
Specialty:
cifs
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環境

  • ONTAP 9
  • FPolicy

問題

  • FPolicy が正しく設定されている
  • FPolicy を有効にしたあとのレイテンシが高くなる
  • ストレージ側で取得されたパケットトレースは、 FPolicy サーバからの応答が非常に遅いことを示しています

    • パケットドロップはありません

    • TCP 「 SEQ/ACK 」分析で「送信中のバイト数」が低くなっています

Transmission Control Protocol, Src Port: 445, Dst Port: 49947, Seq: 2259265300, Ack: 2437704442, Len: 1
    Source Port: 445
    Destination Port: 49958
    [Stream index: 10]
...
    Urgent pointer: 0
    [SEQ/ACK analysis]
        [iRTT: 0.000295000 seconds]
        [Bytes in flight: 1]
        [Bytes sent since last PSH flag: 69]

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