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File System Replication Using DASH Copy - Chaining

If the destination filer of a replication is the source for another replication, then the original source filer can directly restore to the destination filer of the other replication. This is known as chaining.

How It Works

  1. The source filer is backed up (as a UNC path) to the source MediaAgent .
  2. An auxiliary copy job copies the data from the source MediaAgent to the destination MediaAgent (Destination MediaAgent-1).
  3. A restore job restores the data from the destination MediaAgent (DMA-1) to the destination filer (Destination Filer-1).
  4. Another auxiliary copy job copies the data to a different destination MediaAgent (Destination MediaAgent-2).
  5. A restore job restores the data from this destination MediaAgent (DMA-2) to a different destination filer (Destination Filer-2).

Limitations

  • You cannot run or schedule the chained replications individually.
  • A chained replication runs when the parent replication's restore job completes.