Realworld Powersavings for the Cloud Customer

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By Johan De Gelas (Sizing Servers Lab) at CloudCamp Ghent 2010

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  • http://www.infoworld.com/d/green-it/crank-datacenter-heat-care-907 http://searchwarp.com/swa517963-The-Data-Center-Temperature-Debate.htm Sun Microsystems, both a prominent hardware manufacturer and data center operator, estimates a 4% savings in energy costs for every one (1) degree increase in server inlet temperature. (Miller, 2007) A higher temperature setting can mean more hours of free-cooling possible through air-side or water side economizers. This information is especially compelling to an area like San Jose, California, where outside air (dry-bulb) temperatures are at or below 70 deg F for 82% of the year. Depending on geography, the annual savings from economization could exceed six figures.
  • http://www.theregister.co.uk/2009/08/31/data_centers_run_too_cool/
  • Realworld Powersavings for the Cloud Customer

    1. 1. <ul><li>October the 20th 2010 </li></ul>Realworld powersavings for the cloud customer Image2.png E ng . Johan De Gelas , Head of Server Research - [email_address]
    2. 2. <ul><li>Started in 2003, funded since 2006 </li></ul><ul><li>Part of Howest (MCT) and University Ghent </li></ul><ul><li>Team of 6 Researchers </li></ul><ul><li>Core Competences : </li></ul><ul><ul><li>Virtualization & Hybrid Clouds </li></ul></ul><ul><ul><li>Server hardware & Power Management </li></ul></ul><ul><ul><li>Software Tuning </li></ul></ul>
    3. 3. Datacenterpower.png
    4. 4. Power Usage Effectiveness PUE.png
    5. 5. PUE vs Client : fight ! <ul><li>“ Datacenter experts often share a similar nugget of advice as to how to reduce energy bills for the datacenter: Turn up the heat.” </li></ul><ul><li>“Sun Microsystems estimates a 4% savings in energy costs for every one degree increase.” </li></ul><ul><li>Improving PUE: higher room temp? </li></ul>
    6. 6. Fan power Intel_fanpower.png
    7. 7. Making both sides happy coldhot_datacenter.png
    8. 8. Lowering Power IN the rack <ul><li>Rack Level: : instrumented servers + powercap </li></ul><ul><li>Virtual Cluster : DRS </li></ul><ul><li>Server components </li></ul><ul><li>OS Layer </li></ul><ul><ul><li>Scheduler vs polling power manager </li></ul></ul><ul><ul><li>Power manager vs hardware </li></ul></ul><ul><li>Software layer : Energy Efficient Software dev </li></ul>powerdistri_server.png
    9. 9. Power management : Bad match

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