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Always consider energy costs
When evaluating new disk systems, acquisition cost will always be important. But energy costs should also be a concern for those data centers grappling with rising electrical bills, or those in locations where there are limitations on the amount of available power. Vendors should supply the power and cooling requirements for all storage devices under consideration, and users should include questions about energy requirements in all requests for proposals. Determine how your future expansion and upgrades will change energy requirements, and ask vendors what they're doing to improve energy efficiency in future versions of their products.
Choosing energy-efficient storage saves money on today's electrical bills and continues to reap savings for the life of the product.
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This was first published in September 2007
Storage Management Strategies for the CIO

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