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CIFSまたはNFSを使用した間接トラフィックの使用時にCPUまたはクラスタのレイテンシが高くなります

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Category:
ontap-9
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perf
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環境

  • ONTAP 9
  • CIFS
  • NFS

問題

Cluster::> set advanced Warning: These advanced commands are potentially dangerous; use them only when directed to do so by NetApp personnel. Do you want to continue? {y|n}: y Cluster::*> node run -node <node> sysstat -M 1 AVG Nwk_Exmpt 61% 994% 60% 988% 60% 974% 61% 971%
  • Active IQ Unified Manager から、レイテンシが高くなっていることを示すアラートが表示されることがあります
    • :Cluster1_N6のレイテンシ値が12.2 ms/opの場合、しきい値設定10.0ミリ秒/処理に基づいて警告イベントがトリガーされました
  • NWK_EXEMPTからのCPU使用率が高いため、アップグレードを実行できません。
  • クラスタネットワークでもレイテンシが高くなることがあります
cluster1::> qos statistics volume latency show -iterations 100 Workload ID Latency Network Cluster Data Disk QoS NVRAM Cloud --------------- ------ -------- -------- -------- -------- -------- -------- ---------- ---------- -total- 110.35ms 0ms 110.02ms 327.00us 0ms 0ms 0ms 0ms vs1vol0 111 167.82ms 0ms 167.22ms 603.00us 0ms 0ms 0ms 0ms vol1 1234 117.76ms 0ms 117.56ms 191.00us 0ms 0ms 0ms 0ms

 

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