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Is it possible to perform a file restoration with SVM DR

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Applies to

  • SVM DR
  • SnapMirror
  • ONTAP 9

Answer

Yes, there are two restoration methods:
  • Cloning method:
    1. Create a clone of the desired snapshot on destination SVM
      • This clone is an editable copy of the snapshot
    2. ​​​​​​​Map the clone to another SVM
      • Map the cloned volume to another SVM or directly to a host
    3. Access and copy the data:
      • Access cloned volume from the host
      • Copy necessary data to desired location
Notes:: This method allows specific data restoration without affecting the entire SVM or other volumes

Additional Information

  • SVM-DR ensures data availability at disaster recovery site in case of major source failure
  • Specific data restoration from snapshots on destination SVM is complex: 
    • SVM-DR does not support granular restorations
    • It replicates the entire SVM
    • Reverse resynchronization affects all volumes, which may be undesirable
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