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Adding back the tertiary system for SnapMirror backup

Depending on the kind of backup interrupt you encountered, the old secondary system might be usable again as the tertiary system.

About this task

After adding the tertiary system, systemA has a SnapVault backup to systemC, and systemC has a SnapMirror backup to system B (or systemD if systemB cannot be reused).


  1. Resynchronize the SnapMirror relationship between the new secondary system, systemC, and the new tertiary system, systemB.
    snapmirror resync -S systemC:vol3 systemB:vol2
  2. Release resources that are locked for the old secondary system to tertiary system SnapMirror relationship.
    Perform the following step from systemB.snapmirror release vol2 systemC:vol3