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MetroCluster IPのすべてのスイッチ側ノードポートで大量のTX破棄

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環境

  • ONTAP 9
  • 8ノードMetroCluster IP
  • Cisco 9336 バックエンドスイッチ

問題

  • 一方のDRグループで計画された負荷テスト中に、もう一方のDRグループのMetroClusterスイッチポートで大量のTX破棄が報告されます。
  • DRグループ内のノードでテストを実行すると、 大量のトラフィックが受信されたために送信ポーズフレームが報告され、no_buffer破棄されます(ifstat  出力)。
  • バッファ不足メッセージを示すCiscoイベントログ- show logging log : 

%TAHUSD-SLOT2-4-BUFFER_THRESHOLD_EXCEEDED: Module 2 Instance 0 Pool-group buffer 90 percent threshold is exceeded!

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