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個 々 のSnapshotサイズがそのボリュームのDF出力と一致しない

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環境

  • ONTAP 9
  • スペース管理
    • Snapshot 数

問題

  • snap list    コマンドとdf コマンドの出力に表示されるディスクスペースの量に大きな差があります。
  • snap show またはsnap list コマンドの合計Snapshotサイズは、そのボリュームに対してdf -h コマンドで表示されたサイズよりも小さくなります。
    • すべてのボリュームが影響を受けるわけではありません。
    • 出力例:

::> df -h -vserver svm1 -volume vol1
Filesystem         total     used    avail capacity  Mounted on          Vserver
/vol/vol1/         18TB    16TB    1970GB    89%  /vol1            svm1
/vol/vol1/.snapshot    972GB   2763GB     0B   284%  /vol1/.snapshot       svm1
2 entries were displayed.

::> snap list -vserver svm1 -volume vol1
                                 ---Blocks---
Vserver  Volume   Snapshot                  Size Total% Used%
-------- -------- ------------------------------------- -------- ------ -----
svm1    vol1
          weekly.2020-02-11_2138          1.15TB   6%  7%
          weekly.2020-02-18_2138          221.8GB   1%  1%
          weekly.2020-02-25_2138         29.49GB    0%  0%
          weekly.2020-03-03_2138          308KB    0%  0%
          daily.2020-03-03_2138           188KB    0%  0%
          daily.2020-03-04_0010           936KB    0%  0%
          hourly.2020-03-04_0505          228KB    0%  0%
7 entries were displayed.

 

 

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