When Should You Use Deduplication

The following are some of the scenarios where using a deduplication data store could be more effective:

When you have multiple nodes with similar data. In this scenario if you back up data from all nodes to a data store, you would get a good reduction in the amount of data that is actually stored on the recovery point server. The storage space required could be considerably less.
When you have to frequently take a full backup of a node. In this scenario, most of your backup data already exists so your backup time could be very less.
When the network bandwidth is precious. As only unique data blocks travel across the network, you can reduce the network usage .
When backed-up data frequently moves from one node to another. In this scenario, when you try to back up the new node (where the data moves from its original node), the destination already contains the copy and only the reference information is backed up.