DBTA: What’s the Fuss about Data Deduplication?

Listen to a group of database professionals talk for awhile and someone will eventually bring up the topic of data deduplication. Data deduplication is a means  to eliminate redundant data, either through hardware or software technologies.  To illustrate, imagine you’ve drafted a new project plan and sent it to five teammates asking for input.  That single file has now been reproduced, in identical bits and bytes, on a total of six computers. If everyone’s email inbox is backed up every night, that’s another six copies backed up on the email backup server.  Through data deduplication technology, only a single instance of your project plan would be backed up, and all other instances of the identical file would simply be tiny on-disk pointers to the original.

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Posted Dec 14, 2009

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