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ONTAP 7-Mode Transition

Transitioning a disaster recovery relationship between vFiler units

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You can transition the disaster recovery (DR) relationship between the primary vFiler unit and the secondary vFiler unit on 7-Mode systems to a disaster recovery relationship between the source SVM and destination SVM in clusters.

During the transition process, the primary vFiler unit is transitioned to the source SVM, and the secondary vFiler unit is transitioned to the destination SVM.

Steps

  1. Transition the primary vFiler unit to the source SVM, and the secondary vFiler unit to the destination SVM.

  2. Stop the destination SVM by using the vserver stop command.

    You must not rename any volume or add any new volumes on the destination SVM.

  3. For each transitioned primary volume, create a volume-level SnapMirror relationship with the corresponding secondary volume by using the snapmirror create command.

    destination_cluster::> snapmirror create -source-path src_vserver:c_vol -destination-path dst_vserver:c_vol -type DP

  4. Resynchronize the volume-level SnapMirror relationships between the transitioned primary and secondary volumes by using the snapmirror resync command.

    For successful resynchronization, a common Snapshot copy must exist between the primary and secondary volumes.

    destination_cluster::> snapmirror resync -destination-path
dst_vserver:c_vol

  5. Verify that the resynchronization operation is complete, and the SnapMirror relationship is in the Snapmirrored state by using the snapmirror show command.

  6. Create an SVM disaster recovery relationship between the source and destination SVMs by using the snapmirror create command with the -identity-preserve option set to true.

    destination_cluster::> snapmirror create -source-path src_vserver: -destination-path dst_vserver: -type DP -throttle unlimited -policy DPDefault -schedule hourly -identity-preserve true

  7. Resynchronize the destination SVM from the source SVM by using the snapmirror resync command.

    destination_cluster::> snapmirror resync dst_vserver:

  8. Verify that the resynchronization operation is complete, and the SnapMirror relationship is in the Snapmirrored state by using the snapmirror show command.

    destination_cluster::> snapmirror show
                                                                                    Progress
Source               Destination     Mirror       Relationship  Total               Last
Path           Type  Path            State        Status        Progress   Healthy  Updated
--------       ---- ------------     -------      -------------- --------- ------- --------
src_vserver     DP    dst_vserver    Snapmirrored  Idle           -         true    -