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How to check the tiered data size for FabricPool

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Applies to

  • ONTAP 9
  • FabricPool

Description

  • The USED size when running the command df on a FabricPool volume is different than the parent FabricPool aggregate.
    • For example, in the below output the aggregate used space is 0GB:

cluster01::> df -A -g aggr2
Aggregate                total       used      avail capacity
aggr2                   2413GB        0GB     2413GB       0%
aggr2/.snapshot            0GB        0GB        0GB       0%
2 entries were displayed.

However, the volume reports the used space as 9GB:

cluster01::> df -g siva
Filesystem               total       used      avail capacity  Mounted on                 Vserver
/vol/siva/                 9GB        9GB        0GB      99%  /siva                       svm1
/vol/siva/.snapshot        0GB        0GB        0GB       0%  /siva/.snapshot             svm1
2 entries were displayed.

  • This causes the client to report no space left on the device, even though all the 9GB is tiered out:

[nfs_client]# df -h /mydata
Filesystem         Size  Used Avail Use% Mounted on
svm1:/siva        9.5G  9.5G   12M 100% /mydata
[nfs_client]#
[nfs_client]# cp mydatafile.log /mydata
cp: error writing /mydata/mydatafile.log: No space left on device
cp: failed to extend /mydata/mydatafile.log: No space left on device
[nfs_client]#

 

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