Let's simplify how we think about storage and the data we save. There are two types of storage/data: primary, which is created and actively used; and protected, which is a copy or migration of primary data placed into the "data protection continuum." Concepts such as information lifecycle management haven't had much uptake yet. The concept is sound, but there's too much perceived and actual risk when we do things with it on the primary side of the equation. However, it makes sense to talk about it on the protected side. And that's where Disk-to-Disk-to-Disaster Recovery (3DR) enters the picture.
Steve Duplessie is the founder and senior analyst for the Enterprise Strategy Group in Milford, Mass.