However, because each device in the data center typically has its own embedded power supply, enterprise data centers would have to replace all of their devices in order to take advantage of this new energy saving technology.

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Companies who want to supply their own renewable power for their data centers also face hurdles, said Tazbaz.

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Analysts saw the talks as part of a consolidation trend, as HP, IBM and Cisco Systems jostle for control of corporate data centers and compete to supply the high-end computers that power complex corporate transactions and networks.

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Among today's data-storage devices, magnetic tapes can degrade within a decade, while hard disks are expensive and need a constant supply of electricity to hold their information, creating huge need for power for the "data farms" behind cloud computing.

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