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Can I use SVM-DR in a cascade configuration?

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ontap-9
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DP
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Applies to

  • SnapMirror
  • ONTAP 9
  • Data ONTAP Simulator

Answer

  • SVM-DR is designed to be used in an A to B configuration
  • SVM-DR requires the source SVM of the transfer to contain subtype 'default'
Scenario:

A cascade of A to B, to C:

Cluster Cluster-A Cluster-B Cluster-C
SVM production secondary tertiary
Result
  • A to B are Mirrored using Type: SVM-DR

Cluster-B::> snapmirror show
Source            Destination Mirror  Relationship   Total             Last
Path        Type  Path        State   Status         Progress  Healthy Updated
----------- ---- ------------ ------- -------------- --------- ------- --------
production: XDP   secondary:   Snapmirrored      Idle           -         true    

  • When a SnapMirror create is attempted for 'secondary:' to 'tertiary:' on Cluster-C, the following error displays:


Cluster-C::> snapmirror create -source-path secondary: -destination-path tertiary: -type XDP

Error: command failed: Vserver "secondary" is not a Vserver of subtype "default".

Additional Information

Volume SnapMirror relationships can be used to replicate SVMDR destination volumes in ONTAP 9.3 and later

 

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