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The used space of the source and destination of SnapMirror exhibits significant differences

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Applies to

  • ONTAP 9
  • SnapMirror

Issue

  • The used space of the source and destination of SnapMirror exhibits significant differences.
  • For example,the used space on the source is 800MB, but on the destination is only 200MB even after completing the SnapMirror update.

Cluster::>df

Filesystem             kbytes     used      avail     capacity    Mounted on          Vserver
/vol/vol_source        1000000    800000    200000    80%         /vol_source         svm_source
/vol/vol_destination   1000000    200000    800000    20%         /vol_destination    svm_destination

  • The significant discrepancy between the User Data and Total Physical Used Size on the source can be confirmed using the "volume show-space" command.

cluster::*> volume show-space -vserver svm_source -volume vol_source
                       User Data: 800MB
                       Total Physical Used Size: 200MB

 

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