Having personally witnessed the evolution of data deduplication technologies over the years, I can say that deduplication has come a long way both in terms of maturity of vendor offerings, and end user sophistication. Until about two years back, I used to start my discussions with customers by explaining what is deduplication, what it can do for them, how the deduplication algorithm works etc. Fast forward to 2011, and I rarely have to touch upon these topics. Most users now have a fairly good understanding of the basics of deduplication. What I still find missing, however, is a deeper understanding of how the power of deduplication can be leveraged in multiple places to solve data protection problems. As an example, many users still swear by virtual tape libraries or target based deduplication approaches for implementing deduplication. Some users have been sold on the concept of deduplicating data at the source using backup clients. Both of these methods work well in...