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Breaking SnapMirror relationships

You must break the mirror relationship if a mirror source becomes unavailable and you want client applications to be able to access the data from the mirror destination. After the mirror relationship is broken, the destination volume type changes from DP to RW.

Before you begin

About this task

You can use the destination volume to serve data while you repair or replace the source, update the source, and reestablish the original configuration of the systems.


  1. Expand the Storage Virtual Machines hierarchy in the left navigation pane.
  2. Select the SVM that contains the destination volume and click Protection.
  3. Select the mirror relationship that you want to break.
  4. Click Operations > Break .
  5. Select the confirmation check box and click Break.


The data protection SnapMirror relationship is broken. The destination volume type changes from data protection (DP) read-only to read/write. The system stores the base Snapshot copy for the data protection mirror relationship for later use.

For Infinite Volumes, a new mirror is created on the volume if the namespace mirror constituent does not already exist. The namespace mirror constituent is required on the destination volume to provide data protection to the namespace constituent.