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同じFabricPool階層化ポリシーを使用するボリューム上の階層化データの量が異なる

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Category:
ontap-9
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core<a>2009652295</a>
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環境

  • ONTAP 9
  • FabricPool
  • Snapshotのみの階層化ポリシー

問題

snapshot-only 2日間の階層化ポリシーを使用する2つのボリュームでは、階層化されるデータ量が大幅に異なります。
 
cluster1::> volume show-footprint -volume Archive_data, VolDB1

      Vserver : svm1_cluster1
      Volume  : VolDB1

      Feature                                           Used      Used%
      --------------------------------      ----------------      -----
      Volume Data Footprint                           1.98TB         1%
         Footprint in Performance Tier                1.60TB        80%
        Footprint in Cloud Tier                      434GB        21%
      Flexible Volume Metadata                        22.7GB         0%
      Deduplication                                   5.49GB         0%
      Delayed Frees                                   36.3GB         0%

      Total                                           2.05TB         1%

      Vserver : svm1_cluster1
      Volume  : Archive_data

      Feature                                           Used      Used%
      --------------------------------      ----------------      -----
      Volume Data Footprint                           1.13TB         1%
         Footprint in Performance Tier                 116GB        10%
        Footprint in Cloud Tier                      1.03TB        91%
      Flexible Volume Metadata                        7.57GB         0%
      Temporary Deduplication                          297MB         0%
      Delayed Frees                                   14.3GB         0%

      Total                                           1.15TB         1%
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