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大きなIOサイズによるONTAPのCPU Dbladeでの高レイテンシ

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環境

  • ONTAP 9
  • AFF、ASA
  • FAS
  • SAP HANA
  • Oracle

問題

  • I/O のレイテンシが予想よりも高い
  • ホストはバックアップウィンドウ中に高い読み取りレイテンシグラフを報告する

2009331222 - Read latency.png

  • 遅延は Data Processing 、または CPU Dblade で確認されます
  • 大規模な書き込みにも該当します

 

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