In backup jobs high deduplication rates are almost assured. In primary storage where there is, or at least should be, less duplicate data the going gets a little tougher. It seems that any solution in this space should offer compression, as Nexenta does with their ZFS based product, Storwize with their inline appliance or Ocarina Networks with their out of band optimizer. Ocarina adds deduplication to the process as well as content specific optimizers that provide a greater understanding of the file formats being processed. In addition they can migrate data and track its location while they are optimizing it.

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