He flips a switch and an exhaust pipe spews white mist.

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The switch reduced the thickness of the outer pipe by a third to 0.8 inches, cutting shipping and installation costs.

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Sun's announcement marks the information technology industry's latest step toward "utility computing, " a grid system in which companies pipe in data processing and storage from faraway server farms, says Nicholas Carr, author of The Big Switch, a book on utility computing published earlier this week.

FORBES: Sun Plans To Close Its Data Centers