My good friend, Steve Duplessie, wrote a blog article that basically said that the issue that dedupe was designed to solve is “NO LONGER VALID” (Caps his). He didn’t say dedupe is bad, but he says that he can buy JBOD for 1/9th the cost of a deduped system; “therefore, using deduplication to solve an economic scarcity issue is no longer legitimate.” He also said that “if I’m off by 100%, I’m still 1/4 the cost.”
With all due respect to my good friend, I don’t agree with him any more on this than I do on whether or not you should root for the Patriots or the Chargers. His logic is sound, but his numbers are off — off by a whole lot more than 100%. And there’s another “scarcity” factor that he’s not considering.
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Written by W. Curtis Preston (@wcpreston). For those of you unfamiliar with my work, I've specialized in backup & recovery since 1993. I've written the O'Reilly books on backup and have worked with a number of native and commercial tools. I am now Chief Technical Evangelist at Druva, the leading provider of cloud-based data protection and data management tools for endpoints, infrastructure, and cloud applications. These posts reflect my own opinion and are not necessarily the opinion of my employer.