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Access "DC power can cut costs, but conversion isn't easy"

Published: 22 Oct 2012

storage arrays that use direct current (DC) electrical power instead of standard alternating current (AC) power could be the next big thing, especially with Framingham, MA-based research firm IDC estimating that the amount spent on powering and cooling all of the external storage arrays worldwide exceeded $1 billion in 2007. Proponents of DC power say it produces 20% to 40% less heat and is more reliable than AC power. "The primary electrical fuel for the telephone network is DC power," says Jay Krone, EMC's senior director of storage platforms. "And that's why when the lights go out, the phone still works." While most server vendors offer DC power options, only major storage array vendors like EMC, IBM and Sun are much into DC power options for their products. EMC is on its third generation of DC-power Clariions, and recently qualified its Centera product line for DC power. IBM offers a DC power option for its DS3300 storage array, while Sun has its Netra st D130 storage unit. And in June, OEM storage array maker Dot Hill Systems began offering its midrange... Access >>>

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