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Cooling datacentres and a other stuff

Cooling datacentres and a other stuff. Ole Kjærgaard Technical Director, Mail: Ole.Kjaergaard@uni-c.dk. First some facts. UNI•C - Danish IT Centre for Education and Research

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Cooling datacentres and a other stuff

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  1. Cooling datacentres and a other stuff Ole Kjærgaard Technical Director, Mail: Ole.Kjaergaard@uni-c.dk

  2. First some facts UNI•C - Danish IT Centre for Education and Research • UNI•C is an agency under the Danish Ministry of Education. UNI•C delivers a variety of IT services to the educational and research communities. More than one million users regularly benefit from UNI•C’s services and products. • UNI•C has more than 300 employees, and offices in Copenhagen, Lyngby and Aarhus.

  3. Our green approach • The datacentre (approx. 1.500 sqm.) • Finding power consuming devices • Awareness campaigns • Intelligent houses

  4. The datacentre • Optimizing air-flow • Cold and hot aisles • Placing down-flow units • Optimizing cooling machines • Free cooling • Controlling the cooling machines • Use IT equipment with low power consumption • Remember to turn off old equipment • Virtualize • Know your power consumption

  5. Cooling machines • Free cooling • Intelligent control Increase water temp.

  6. Before and after optimization

  7. Cooling in the datacentre Increase air temp. Placing down-flow units

  8. Finding optimal places for down-flow units

  9. Power Usage Effectiveness - PUE • PUE is the total power consumption in the datacentre (incl. UPS, cooling etc.) divided by the consumption from the IT equipment. A typical value in older datacentres is a PUE-value between 2,0 and 2,5. PUE=2 means that for each Watt spend on the IT equipment, another Watt is used in UPS, cooling etc.

  10. Our PUE

  11. What is your power consumption? • The IT guys do typically not know the power consumption in the data centre • The power bill is normally paid by the ones responsible for rent, cleaning etc. • But this is not the case at UNI•C…

  12. Finding equipment that uses power (looking for sources of heat)

  13. Example • Which machine has the highest stand-by consumption?

  14. Results… • Printers • Xerox multifunction (daytime) 93 W • HP Color 4700 17 W • HP Color 3700 14 W • HP S/H 2200 11 W • Mailing/postage machine 7 W • Fax 37 W

  15. Awareness campaigns • Buy some (good) energy meters • Distribute them!

  16. My office PC • Guess the power consumption?

  17. The answer is… • 140 W • Remember to turn the PC off at the end of each working day • Do not use screensavers with pcitures on the screen (NO flying windows…) • Use remote desktop/terminal servers for home/remote work

  18. Intelligent houses • Connecting light and access control/alarm • Use standby functions (Coffee makers, printers etc) • Simple things (on/off timers) • Motion detectors • Light sensors

  19. General considerations • Think CO2 instead of energy consumption • Use green energy when possible • Manufacturing also contribute to CO2 • 30% of the total CO2 emission from a car during its entire life comes from the production…

  20. What do you do?? Questions or comments?

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