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Green and Greener: The path to (more) sustainable data centers. Chris Page Global Director, Energy & Sustainability Strategy. February 1, 2012. Are we green yet?. More Good ….instead of “less bad”. Green designer William McDunough. Derivatives: Velocity versus acceleration.
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Green and Greener:The path to (more) sustainable data centers Chris Page Global Director, Energy & Sustainability Strategy February 1, 2012
More Good….instead of “less bad” Green designer William McDunough
Derivatives: Velocity versus acceleration “The upward trend in the growth of data center energy usage has slowed…. ” (Data Center Dynamics, August 2011) “U.S. Greenhouse Gas Emissions Projected to Grow Slowly” (New York Times, April 2011)
2010 is the warmest year in the 130-yr global temperature record. NASA/GISS/Holmes Hummel 2010
Pre-engineered building requires no welding. Less design cost, less construction cost = under $5M/MW to build 6 months or less to complete building No raised floor required “Wing” design achieved scalability – add when we need. Easy to make design changes Yahoo! Data Center Strategy: Fast,Cheap to Build, & Expandable “The future of data centers.” Fortune Magazine FASTER LOWER COST MORE EFFICIENT
JULY 2011: 3rd Warmest July in 141 years of data Warmest Single Month in 56 Years 30 of 31 days over 80 degF high temp 12 days over 85 degF high temp Record temps for dates of 7/21 (95 F, dewpoint of 74 F!) and 7/22 (93F) First Summer Summary
Ongoing efficiency work • Anticipating changes in Relative Humidity • Finding the sweet spot in fan efficiency • Boosting cooling even more in the winter to increase efficiency of server fans BUT: lower IT load + constant cooling load = worse PUE?
Yahoo’s Flex Tier Design 990kw Modular GenFarms w/ R(+)Options Utility Power Gen Farm B Gen Farm A 0 kw 0 kw B A 1030kw MV PowerRings 12-15,000v10mw each Power Ring A Power Ring B 611kw 407kw UPS A UPS A UPS B UPS B Modular Y!CC Host Pods TIER TIER TIER TIER TIER 0-LD 1 0 4 2 200kw 200kw 200kw 200kw 200kw
Failed Utility; UPS Online 0 kw Modular GenFarms w/ R(+)Options Utility Power Gen Farm B Gen Farm A 214 kw 428 kw B A 0 kw MV PowerRings 12-15,000v10mw each Power Ring A Power Ring B 424kw 212kw UPS A UPS A UPS B UPS B Modular Y!CC Host Pods TIER TIER TIER TIER TIER 0-LD 2 1 4+ 0 0 kw 0 kw 200kw 200kw 200kw
Source: Aggar, Mark. The IT Energy Efficiency Imperative. Microsoft Environment. June 2011
Virtualization • Seek Complimentary resources usage • (CPU heavy, disk I/O light) + (CPU light, disk I/O heavy) • = virtualized combination
YAHOO!’S CLOUD Yahoo! Cloud Supports: 680M+ registered users 200PB+ of data 100Bn events/day 1.5M requests/second 11Bn page impressions/month
Cloud is green because: • It creates economies of scale • Diversity & aggregation of loads from a variety of users = better server utilization • Flexibility of servers = greater reliability with less backup by individual, physical servers. • Ends the split between IT & Facilities
45-55% humidity recommendation.Where did this belief come from ? Modern hw manufacturer warranty supports a much broader range (0-90% rh w/o condensation on/in gear.) Analyzed data (or lack thereof) related to humidification related hw failure from manufacturers. Conducted numerous lab exercises related to how high/low humidity affects servers. Legacy recommendation DID work very well to avoid paper punch cards from getting stuck in dinosaur era computers ?
From Smart 2020: Enabling the Low Carbon Economy in the Information Age. www.climategroup.org
Solar + Wind + Data Centers….? • “100% wind-powered” data centers (RECs?) • Rutgers University’s Greenslot – run on Hadoop • HP, AMD, NYSERDA researchers at Clarkson University • …all working on using intermittent power sources to run data centers • ….potential game-changer for direct use of intermittent power?
Aptera Infinia Esolar
Thank you! Chris Page cpage@yahoo-inc.com Twitter: greenumerations