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Dell Storage Manager 2020 R1 Administrator's Guide

Step 5A: The Destination Volume Replicates Back to the Source Site

When the restore operation is initiated, the activated destination begins replicating to the original source volume. The most recent common snapshot for the original source and activated DR volume is located, and subsequent snapshots are replicated to the original source volume. If all common snapshots expired after the destination volume was activated for DR, a new volume is created and the original is placed in the recycle bin so that it can be retrieved if necessary. During this time, the activated DR volume continues to accept IO.

Figure 1. Activated DR Volume Replicating Back to the Source Site
Diagram of a DR-activated volume replicating back to the source site
  1. Source volume being recovered

  2. Replication over Fibre Channel or iSCSI

  3. Destination volume (activated)

  4. Server mapping to activated DR volume

  5. Server at source site (not mapped)

  6. Server at DR site


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