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Vol. 8 Num. 3 May 2009

A wealth of deduplication options

Hardware-based products propelled deduplication into the mainstream, but now that most backup apps include dedupe, you'll have to carefully evaluate the options. By Lauren Whitehouse Data growth grabs most of today's IT headlines and many IT organizations believe data protection is one of the key contributors to the staggering data capacities that need to be managed. Why? Lots of copies are made by data protection processes -- at least once per day, but sometimes multiple times daily -- and kept locally for operational recovery. Copies of copies are also sent offsite for disaster recovery (DR) purposes. Most backup and replication solutions perform these processes inefficiently, making multiple copies of the same file despite only a small amount of the data within the file having been changed. Maintaining daily, weekly, monthly and yearly backup copies means that dozens of copies of the same data may be stored, and often for extended periods of time. It's this propagation of data that makes data deduplication a compelling ...

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Features in this issue

  • Put data dedupe to the test

    You can take your chances and believe the deduplication ratios and performance the vendors say you'll get, or you can do it right and test the systems yourself.

  • CDP picks up a little steam

    Continuous data protection (CDP) application adoption is hardly a juggernaut, but our most recent survey shows a modest increase in the number of CDP users.

  • A dynamic four-tier storage design

    A comprehensive revamping of the storage environment at a major government agency shows how a tiered storage design can meet operational expectations without busting the budget.

Columns in this issue

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