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On the rack.(Letters)(Letter to the Editor)
Dear Editor:
Leonard Ruff's article on data center cooling (September) is timely and well portrayed with excellent graphics showing the transfer of heat through the racks, I am taking the article to a large data facility client this morning as an illustration of the issues facing them in a large data facility upgrade.
On the other hand, the article may inadvertently leave a naive reader with some inappropriate notions of the energy density of the data facility when planning electric utility service for the entire facility. The author uses the unsettling number of 120-150 watt per square foot (W/[ft.sup.2]) in the article, leaving it unqualified for the inexperienced planner. Ruff states correctly the probable ranges of real load density but it appears that the reader may take the higher density numbers with them.
During the telecom boom, we fought the mythology of entire facilities having a true peak demand of 200 W/[ft.sup.2] and greater. Electric utilities were frustrated by real estate developer requests for services that no one watching the load on the feeders believed would materialize. At the peak of the arguments, we had facilities measured at the data component and the entire facility. We found very few data facilities with a functioning diversity in excess of 50 W/[ft.sup.2]. In the newest of facilities, we still find 35 ...
- EMC'S SYMMETRIX REMOTE DATA FACILITY PROVES CRITICAL FOR PROMINENT GERMAN...
- Press release article from: Business Wire August 23, 1995 700+ words
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- iemagine sets up Davao data facility to service local ASPs.
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- Chicago Merc Goes Live With Remote Data Facility.(Chicago Mercantile Exchange)
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