FACILITIES power+cooling
#dcsarticle
http://www.dcseurope.info/n/yhbo
Better energy management through network convergence
Over the past year, global investment in data centres has increased by more than one-fifth. This is largely driven by increasing demands related to cloud services, ‘Big Data’, social media applications and innovations such as data centre infrastructure management (DCIM). It won’t come as a surprise that data centre energy requirements have also grown massively.
Despite industry-wide initiatives, high energy prices and legislation, power demand is on the increase. Network Convergence, however, may play an important role in making power consumption at data centres significantly more efficient. By Dr. Thomas Wellinger, Market Manager Data Centres, R&M.
ACCORDING TO THE DATACENTER DYNAMICS 2012 Global Census, global data centre power requirements grew by 63% to 38GW last year, up from 24GW in 2011. The study also noted an increase in kW per average server rack. Although the proportion of more energy efficient high-density racks (> 10 kW per rack) grew by 3%, the percentage of less efficient medium-density racks (5-10kW per rack) showed equal growth.
Data centre efficiency is typically measured in ‘PUE’, or ‘Power Usage Effectiveness’. A PUE of 1 would mean that all the energy going into
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the Data Centre is used exclusively for IT. A PUE of 2 means that for every watt of power used for computing, another watt is consumed for power distribution, cooling and related processes such as lighting, heating and security systems. The 2012 Data Centre Survey, published by the Uptime Institute, places today’s global average PUE somewhere between 1.8 and 1.89. Understandably, regulators and other stakeholders are calling for data centres to use energy in the most efficient, environmentally sound way possible. Building data centres in cold areas to save on cooling is just one example of how this is being catered to.
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