David Matusow, a Center of Excellence architect at SunGard Availability Services, says companies must start to review their energy demands now and not wait until a hard limit is reached. "Reviewing now provides a company with the time and insight required to make adjustments prior to hitting a solid stop point," he says. "If a power limit is reached, a company must make difficult choices—are data center plans postponed or priorities? What is needed is an effective way to measure the current state and project impacts and demands." Matusow says capacity planning must include not only processor cycles but also infrastructure requirements.

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