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ONTAP 9.7へのアップグレード後、OCUM 9.5以前で非常に高いLUNレイテンシが報告される

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環境

  • Active IQ Unified Manager（AIQUM）9.6
  • OnCommand Unified Manager（OCUM）7.2
  • OnCommand Unified Manager（OCUM）7.3
  • OnCommand Unified Manager（OCUM）9.4
  • OnCommand Unified Manager（OCUM）9.5

問題

  • Data ONTAPを9.3から9.7にアップグレードしたところ、OCUMはワークロードがほとんどない状態でLUNレイテンシが25000msにも達すると報告しました。
  • QoSリアルタイムで同じLUN/ボリュームを確認したところ、レイテンシは2ms未満でした。 

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