NAB pools data to save power  

Posted by Big Gav in , ,

The SMH has an article on NAB's new energy efficient data centre in Melbourne (interestingly the trigeneration setup used at NAB's primary data centre isn't mentioned for this new data centre) - NAB pools data to save power.

National Australia Bank will officially open a new data centre in Melbourne this week, hoping to eventually save the financial institution $22 million over decade. The bank's 23 existing data centres, ranging in size from small broom closets to large computer rooms, will be amalgamated into the new facility at Deer Park, 17 kilometres west of the Melbourne CBD, as well as an existing building across town at Knox. When completed and fully operational in seven years, the downsizing will cut NAB's power usage by 40 per cent, its chief technology officer, Denis McGee, said. ...

The average power usage effectiveness (PUE) of the bank's 20-plus data centres is 2.5. PUE measures the total energy use of a facility divided by the energy used by the ICT equipment within. McGee hopes the Deer Park facility will almost halve the bank's PUE, to less than 1.3, a coveted goal for data centre owners and users. Google claims a PUE of 1.12 across all of its data centres. ...

The scale of the new facility, and the bank's promise to meticulously manage its power usage, allowed it to negotiate near-wholesale rates directly with the electricity supplier, data centre transformation senior manager Tim Palmer said. In the case of a power outage, six diesel generators will provide a back-up source. An underground concrete tank holds enough diesel to fuel the engines for three days. Free cooling will regulate the temperatures at Deer Park for half the year, where ambient air cooler than 30 degrees will be used instead of airconditioning. ...

The bank is also embarking on a virtualisation strategy improve server usage rates from 12 to 60 per cent ... "We have about 10,000 physical and virtuals, and 55 per cent are virtualised, and we have an ongoing program to virtualise more," McGee says.

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