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April 2013

The evolution of data deduplication technology continues

Data deduplication technology for backup has evolved enormously in the last decade, and it's poised to go beyond just backup. Get Arun Taneja's thoughts on the subject. New technologies come to market as value-add features for existing mainstream products that are then later merged into these products. It's often the only way a new vendor can bring a product to market, like what happened with data deduplication technology. In the early 2000s, data deduplication came in the form of appliances from companies like Data Domain, Diligent Technologies, ExaGrid Systems, Quantum and Sepaton. The appliances worked in conjunction with existing backup software and the value proposition was simple: install the appliance, point the backup software to it and instead of backing up to tape the backup app would stream the data to the appliance. Backups and restores got faster and more reliable, and with deduplication, disk costs were close to that of tape. The market for the appliances soared in terms of revenue and acceptance. But why not merge...

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