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クライアント側df出力でqtreeの合計サイズが予想どおりではありません

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Category:
ontap-9
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環境

  • ONTAP 9.9.1以降
  • qtree
  • NFSクォータ

問題

デフォルトまたはディスククォータを持つqtreeでのクライアント側dfでは、FlexVol/FlexGroupのプロビジョニングされたサイズは表示されません:
 
例:
  • FlexGroupプロビジョニングされたサイズは685TBです:
[root@host ~]# df -h /mnt/volume
Filesystem              Size  Used Avail Use% Mounted on
Cluster01-svm1:/vol/vol1       685T  169T  516T  25% /mnt/volume
 
  • FlexGroup内のqtreeの合計サイズは516TBと表示されます:
[root@host ~]# df -h /mnt/volume/qtree1
Filesystem              Size  Used Avail Use% Mounted on
Cluster01-svm1:/vol/vol1       516T   0  516T  0% /mnt/volume
 
  • 同じFlexGroup内の別のqtreeでは、合計サイズが564TBと表示されます:
[root@host ~]# df -h /mnt/volume/qtree2
Filesystem              Size  Used Avail Use% Mounted on
Cluster01-svm1:/vol/vol1       564T  49T  516T  9% /mnt/volume

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