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Is there any reason why you wouldn't use data deduplication?

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Question of the Month: Is there any reason why you wouldn't use data deduplication?


    "You need to be pretty confident that the deduplication platform won't either lose [data] or incorrectly reconstruct it on retrieval."
    --John Boden, storage engineering, Visa Europe

    "It may not be worth the time and expense to implement."
    --Neal L. Wimbiscus, manager, NCS server support, Chicago Transit Authority

    "Two reasons: Dedupe can actually increase the size of your stored data when you have a compressed stream going through a device to your SAN. The second is compliance: One would essentially be rendering any data headed for a write-once vault corrupt by removing redundant data."
    --Tory Skyers, senior systems engineer, Prudential Fox & Roach Realtors/Trident Group, Devon, PA

    "No. We have been overtaken by high-profile projects and need to look into options to alleviate our backup and storage concerns."
    --Steve Rice, Unix administrator, U.S. Navy

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This was first published in June 2008

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