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ONTAP の一部のFC LUNについて、LUNのミスアライメントがレポートされる

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環境

  • ONTAP 9
  • FC
  • VMware ESXiホスト

問題

  • クラスタ内のLUNのLUNアライメントがミスアライメントとして表示されています 

cx-xx-xx-aff::*> lun alignment show /vol/vol1/lun1
        Vserver Name: svm_name
          LUN Path: /vol/vol1/lun1
          OS Type: vmware
         Alignment: misaligned
Write Alignment Histogram: 82, 15, 0, 0, 0, 0, 0, 0
  Read Alignment Histogram: 82, 0, 0, 0, 0, 0, 3, 11
    Write Partial Blocks: 1
    Read partial Blocks: 3

  • ミスアライメント状態のLUNでは、3台のVMがそれぞれ異なるゲストOSを実行している以下のように、3台のVMをホストしています
    • Cisco ISE x 1
    • 1 x Power IQ
    • VMware vCenter×1

 

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