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Resynchronizing mirror relationships

You can reestablish a mirror relationship that was broken earlier. You can perform a resynchronization operation to recover from a disaster that disabled the source volume. For Infinite Volumes, the resynchronization operation recovers the volume and its constituents.

Before you begin

The source and destination clusters and the source and destination storage virtual machines (SVMs) must be in peer relationships.

About this task

  • When you perform a resynchronization operation, the contents on the mirror destination are overwritten by the contents on the source.

    Attention
    The resynchronization operation can cause loss of newer data written to the destination volume after the base Snapshot copy was created.
  • If the Last Transfer Error field in the Protection window recommends a resynchronization operation, you must first break the relationship and then perform the resynchronization operation.

  • For Infinite Volumes with storage classes, if new constituents have been added to the source Infinite Volume since the mirror relationship was created, you cannot use Storage Manager to resynchronize the mirror relationship.

    Instead, you should use OnCommand Workflow Automation .

  1. Click Protection > Relationships .
  2. Select the mirror relationship that you want to resynchronize.
  3. Click Operations > Resync .
  4. Select the confirmation check box and click Resync .
  5. Optional: If you are resynchronizing a mirror relationship between Infinite Volumes, click Run in Background to run the operation in the background.