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空きスペースが想定どおりにアグリゲートに戻されません

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環境

ONTAP 9

問題

  • Snapshotを削除したあとにアグリゲートに[空きスペース]が表示されず、 Delayed Frees で停止します。
  • Delayed Frees 数が多いアグリゲート内のボリュームフットプリントを見ると、この値は時間の経過とともに増加し、決して減少しません。 

注意:この記事は Delayed Frees が3%以上の場合にのみ適用されます。

cluster1::> volume show-footprint -vserver svm1 -volume volume_name
……
      Vserver : svm1
      Volume  : volume_name
 
      Feature                                          Used    Used%
      --------------------------------           ----------    -----
      Volume Data Footprint                         14.32TB      27%
      Volume Guarantee                                   0B       0%
      Flexible Volume Metadata                           0B       0%
      Deduplication                                 275.4GB       1%
      Delayed Frees                                 18.88TB      36%
 
      Total Footprint                               33.48TB      63%

 

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