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Vol. 5 No. 11 January 2007

DC saves energy for storage

Direct current (DC) power in the data center has always been perceived as a power solution for the telecom industry, but that could change. Many vendors and analysts are skeptical, but some think DC might be part of an enterprise conservation plan. The high cost of retrofitting a data center could nullify the 10% to 30% power savings you might achieve, but it's a different story at the rack. Rackable Systems, which recently announced its RapidScale SA3100 storage appliance with optional DC power, pioneered cabinet-level conversion and says more than half of the systems it has shipped in the last two quarters are DC based. These systems can plug into any data center power source to achieve what Rackable conservatively estimates as a 10% power savings. In combination with other power-reducing initiatives, it might make sense. "When you add it all up, you get a big difference," says John Webster, principal IT advisor at Illuminata. --Trina MacDonald

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Features in this issue

  • Protect remote-office data

    Centralizing remote-office and branch-office (ROBO) apps and their data in the primary data center has enormous economies of scale. These remote-data apps cut the amount of data sent over the wire, making it possible to economically back up remote data to a central site. We provide a sampling of the various ROBO data management products on the market, and describe how they can best be implemented.

  • DC saves energy for storage

  • iSCSI for everybody

Columns in this issue