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Volume 32, Issue 3

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Friday, 22 October 2010 16:38

The Impact of Primary Storage Data Reduction on DR Strategies


Over the last few years endusers have begun to warm to the idea of running data reduction technologies like compression and deduplication on their primary storage. With data levels growing and IT leadership looking for ways to control budget, the ability of these technologies to reduce storage and operational costs makes it inevitable that they will be deployed on at least some production application workloads. In the context of disaster recovery, data reduction on primary can be extremely beneficial: reducing the DR footprint, lowering costs and opening the door to provide DR to more of the overall IT environment. But for this to happen architects will need to carefully consider how they adapt strategies to accommodate primary data reduction. Key to this is the relative position of reduction and replication in the I/O stack. Based on the major offerings available today there are three typical methods of deployment:Appliance-based data reduction with host-based