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42U Confidential   ©2008 42U All rights reserved  Slide  Cooling Strategies for Efficiency  – Techniques to Reduce Your En...
Overview <ul><li>Business Factors </li></ul><ul><li>Data Center Strategy </li></ul><ul><li>Fundamental Strategies </li></u...
Efficiency Drivers <ul><li>Rising Energy Costs </li></ul><ul><li>Physical Limitations </li></ul><ul><ul><li>Building Infra...
Energy Cost Projection 42U Confidential   ©2008 42U All rights reserved  Slide  Source: Uptime Institute
Data Center Strategy <ul><li>Virtualization </li></ul><ul><li>Blades </li></ul><ul><li>Application Expansion </li></ul><ul...
Planning Considerations <ul><li>Hot/Cold Aisle Arrangement </li></ul><ul><ul><li>Feasibility </li></ul></ul><ul><ul><li>Ap...
Efficiency Strategies <ul><li>Variable-Speed Fans </li></ul><ul><li>Power Design </li></ul><ul><li>Modularity </li></ul><u...
Energy Consumers <ul><li>45% of Power Consumption Goes to the Cooling Infrastructure  </li></ul><ul><li>50% More than to t...
Functional Limitations <ul><li>CRACs Are Reaching Their Functional Limits </li></ul>42U Confidential   ©2008 42U All right...
Rack kW Trend <ul><li>10 kW of Load Becoming the Norm </li></ul><ul><li>Continued Increasing Density </li></ul>42U Confide...
Cooling Efficiency <ul><li>Hot/Cold Aisle </li></ul><ul><li>Density Distribution Scheme </li></ul><ul><li>Supplemental </l...
Confirmation of Fundamentals <ul><li>Impact of a Single Blanking Panel </li></ul><ul><li>Consistent Results For </li></ul>...
Density Distribution <ul><li>Close-Coupled Cooling </li></ul><ul><li>High-Density Checkerboard </li></ul><ul><li>Strategic...
Airflow Containment <ul><li>30-49% Increase  in CRAH/ CRAC Capacity </li></ul>42U Confidential   ©2008 42U All rights rese...
Hot Aisle Containment <ul><li>Saves 40%  Fan Energy </li></ul>42U Confidential   ©2008 42U All rights reserved  Slide  Sou...
Cold Aisle Containment <ul><li>Saves 75% Fan Energy </li></ul>42U Confidential   ©2008 42U All rights reserved  Slide  Sou...
Technology Alternatives 42U Confidential   ©2008 42U All rights reserved  Slide  Close Coupled Rear Door Ambient Air Suppl...
Ambient Air <ul><li>Low Density </li></ul><ul><li>Hot/Cold Aisle </li></ul><ul><li>Raised Floor Plenum </li></ul>42U Confi...
Rear Door <ul><li>Hot/Cold Aisle Alternative </li></ul><ul><li>Low Capacity </li></ul><ul><li>Isolated Dense Cabinets </li...
Active Air <ul><li>Air Handling Efficiency </li></ul><ul><li>Containment Alternative </li></ul><ul><li>Not Additional Cool...
Supplemental In-Row <ul><li>Hot Spot Control </li></ul><ul><li>Supplements CRAC Capacity </li></ul><ul><li>Next-Level Capa...
Close Coupled <ul><li>Closed Loop </li></ul><ul><li>Microclimate </li></ul><ul><li>Isolated </li></ul>42U Confidential   ©...
Chip-Level <ul><li>Extreme Density </li></ul><ul><li>Customized Servers </li></ul><ul><li>Research Environments </li></ul>...
Close Coupled Cooling 42U Confidential   ©2008 42U All rights reserved  Slide  + = Cooling  Server Cabinet  High-Performan...
Redundancy <ul><li>Configurable To Meet Need </li></ul>42U Confidential   ©2008 42U All rights reserved  Slide  C O O L I ...
Footprint Reduction 42U Confidential   ©2008 42U All rights reserved  Slide  40kW 3 Rack Space 20kW 30 – 40 KW 40kW  10 Ra...
Close Coupled TCO Example <ul><li>10K Square Feet Reduced to 5.6K </li></ul><ul><ul><li>$129K-195K Annual Real Estate Savi...
Economizers <ul><li>Use Environment for Cooling </li></ul><ul><li>Air-Side Inherently More Efficient </li></ul><ul><li>Wat...
Water Side Potential 42U Confidential   ©2008 42U All rights reserved  Slide
Planning Considerations <ul><li>Create a Comprehensive Design </li></ul><ul><li>Consider the Entire Facility </li></ul><ul...
Efficiency Checklist <ul><li>Reduce Your Electric Bills </li></ul><ul><ul><li>20-50% for No/Low-Cost Changes </li></ul></u...
Summary <ul><li>Consider the Big Picture </li></ul><ul><li>Basics </li></ul><ul><li>Airflow Containment </li></ul><ul><li>...
Q&A 42U Confidential   ©2008 42U All rights reserved  Slide  For More Information Contact Your 42U Data Center Efficiency ...
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Data Center Cooling Strategies

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Data Center Cooling Strategies for Efficiency - Techniques to Reduce Your Energy Bill by 20-80%

Data center cooling is a hot topic. When you consider the challenges of cooling the latest generation servers, growing cost of infrastructure equipment, and ever growing concern around energy efficiency, it's easy to understand the focus.

To view the recorded webinar presentation, please visit, http://www.42u.com/cooling-strategies-webinar.htm

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  • Make IT a hero! It’s good business and it’s good for the planet too!
  • The A and B projections are for improvements in server technology efficiency.
  • Use thermostatically controlled variable-speed fans In some situations, a 3-phase power distribution strategy can be preferable because it reduces PDU requirements and increases open space in racks. Lower cost of cabling: Loads &gt; 5kW within a rack can be handled by a single 3-ph circuit as against multiple 1-ph circuits, translates into lower cost of cabling. • Higher reliability of electrical infrastructure: Bringing 3-phase power into the rack and utilizing rackmount PDUs with phase level metering capabilities allows data center operators to better balance the loads across all three phases. Balanced loads minimize harmonics and overheated neutral wires. • Higher reliability of IT infrastructure: Bringing a lower number of circuits into each rack maximizes the airflow both under the raised floor and within the racks. Better airflow keeps IT equipment from overheating. • Scalability: Higher capacity of 3-ph circuits provides more room for growth in the future. More equipment can be plugged in without bringing down power to existing equipment. If a data center operator chooses to use 3-ph power for some or all the racks, the next decision point is whether to bring in a Wye-supply or a delta supply to the rack. Wye supply would also pull in a neutral wire to the rack whereas a delta supply would not. Develop modular rack design point for low-, medium- and high-density rack configurations. The most significant efficiency strategy is simple airflow control; ensuring correct airflow by using blanking panels and floor grommets to ensure proper airflow. The next level of airflow control is containment.
  • Without moving to newer technologies and best practices, data center density will reach physics limits
  • At all rack design points hot/cold aisle configurations will be more efficient Depending on the number of high-density racks, those operating at 10 kW of load or higher, you should consider either high-density checkerboarding or close-coupled cooling. TIA 492?
  • effect of adding one 12”, 7U blanking panel to the middle of a rack conventional wisdom is correct: blanking panes are essential other data center clichés also borne out eliminate leaks in floor manage floor tile permeability
  • Planning is everything and best-practices make the difference. Planning data center layouts is critical. It’s becoming common to find data centers laid out with a hot/cold aisle configuration. Closing up the airflow gaps is another step in the right direction. Better yet is isolation of the hot and cold aisles. Here are two diagrams from an Accenture study done in conjunction with Lawrence Berkeley National Lab and the Silicon Valley Leadership Group. They examined two isolation alternatives; hot aisle isolation and cold aisle isolation. The results of the study indicated that cold aisle isolation is the more efficient of the two. The report then highlighted the efficiency gains of cold aisle isolation. Three findings seem to be most significant relative to efficiency; the dramatic reduction in fan energy translated to a 1.8% overall energy reduction and raising the chilled water temperature to 50 degrees, coupled with a water-side economizer, reduced overall energy consumption an additional 2.8%. While difficult to calculate in terms of efficiency, the 30-49% increase in CRAH capacity is clearly significant, particularly for those of you who are reaching your CRAH and CRAC capacity limits. Cold aisle isolation provided additional savings in other areas as well. You can get to a copy of the full report from our website at 42U.com.
  • Allowing for warmer water temperatures, while still maintaining high density loads could save a great deal of money using conventional chillers Depending on the operational condition of the chiller plant, the energy saving can be realized annually on converting an existing 10K square foot data center.
  • Typical Chiller plants provide chilled water at &lt;45F, which is then past to the CRAC units in the data center Raising the water temperature lowers operating cost, but the cooling solution must be able to handle the warmer water while providing the same amount of cooling Close coupled cooling allows for high density installations, while using water as warm as 70F! This warm water temperature allows for more hours each year where evaporative or dry air side economizers / coolers can be used lower operating cost, by reduced electricity usage
  • Focus on complete data center cooling designs Provide complete cooling redundancy Include a comprehensive monitoring and alarm system at all component levels Understand The Complete Facility Hot/cold aisle – common aisle for exhaust Placement of vented or cutout floor tiles Air flow paths Consider alternate cabinet configurations Supplemental Cooling Systems Close Couple Cooling Energy-efficient, cost –effective way Group common products together Develop component installation standards Plan for new cooling solutions
  • Get electrical, mechanical studies Find engineering firms with data center experience Consider instrumenting your data center to enhance visibility Eat your spinach (blanking panels, leaks) Take advantage of outstanding, free PG&amp;E Pacific Energy Center classes (state-wide) Keep an eye on emerging technologies (flywheel UPS, rack-level cooling)
  • Transcript of "Data Center Cooling Strategies"

    1. 1. 42U Confidential ©2008 42U All rights reserved Slide Cooling Strategies for Efficiency – Techniques to Reduce Your Energy Bill by 20-80% September 19, 2008 ________________________________
    2. 2. Overview <ul><li>Business Factors </li></ul><ul><li>Data Center Strategy </li></ul><ul><li>Fundamental Strategies </li></ul><ul><li>Technology Alternatives </li></ul><ul><li>Advanced Technologies </li></ul><ul><li>Efficiency Plan </li></ul><ul><li>Q&A </li></ul>42U Confidential ©2008 42U All rights reserved Slide
    3. 3. Efficiency Drivers <ul><li>Rising Energy Costs </li></ul><ul><li>Physical Limitations </li></ul><ul><ul><li>Building Infrastructure </li></ul></ul><ul><ul><li>Utility Capabilities </li></ul></ul><ul><li>Mandates </li></ul><ul><ul><li>Carbon Tax </li></ul></ul><ul><ul><li>Utility Initiatives </li></ul></ul><ul><ul><li>C-Level Need for ‘Green’ Message </li></ul></ul>42U Confidential ©2008 42U All rights reserved Slide
    4. 4. Energy Cost Projection 42U Confidential ©2008 42U All rights reserved Slide Source: Uptime Institute
    5. 5. Data Center Strategy <ul><li>Virtualization </li></ul><ul><li>Blades </li></ul><ul><li>Application Expansion </li></ul><ul><li>Facilities </li></ul><ul><li>Power Management </li></ul><ul><li>Air Handling Infrastructure </li></ul>42U Confidential ©2008 42U All rights reserved Slide
    6. 6. Planning Considerations <ul><li>Hot/Cold Aisle Arrangement </li></ul><ul><ul><li>Feasibility </li></ul></ul><ul><ul><li>Applicability </li></ul></ul><ul><li>Rack Density Design Point </li></ul><ul><ul><li>Standardized </li></ul></ul><ul><ul><li>< 15 kW = Supplemental </li></ul></ul><ul><ul><li>> 15 kW = Close Coupled </li></ul></ul>42U Confidential ©2008 42U All rights reserved Slide
    7. 7. Efficiency Strategies <ul><li>Variable-Speed Fans </li></ul><ul><li>Power Design </li></ul><ul><li>Modularity </li></ul><ul><li>Airflow Control </li></ul><ul><ul><li>Perforated Tile Configuration </li></ul></ul><ul><ul><li>Blanking Panels </li></ul></ul><ul><ul><li>Floor Grommets </li></ul></ul><ul><ul><li>Containment </li></ul></ul>42U Confidential ©2008 42U All rights reserved Slide
    8. 8. Energy Consumers <ul><li>45% of Power Consumption Goes to the Cooling Infrastructure </li></ul><ul><li>50% More than to the IT Equipment </li></ul>42U Confidential ©2008 42U All rights reserved Slide Source: The Green Grid, Guidelines for Energy-Efficient Datacenters
    9. 9. Functional Limitations <ul><li>CRACs Are Reaching Their Functional Limits </li></ul>42U Confidential ©2008 42U All rights reserved Slide Source: Aperture, Managing Today’s Data Centers, Avoiding the Impending Crisis
    10. 10. Rack kW Trend <ul><li>10 kW of Load Becoming the Norm </li></ul><ul><li>Continued Increasing Density </li></ul>42U Confidential ©2008 42U All rights reserved Slide Source: IDC, The Impact of Power and Cooling on Data Center Infrastructure
    11. 11. Cooling Efficiency <ul><li>Hot/Cold Aisle </li></ul><ul><li>Density Distribution Scheme </li></ul><ul><li>Supplemental </li></ul><ul><li>Advanced </li></ul>42U Confidential ©2008 42U All rights reserved Slide Source: APC, Ten Cooling Solutions, #42
    12. 12. Confirmation of Fundamentals <ul><li>Impact of a Single Blanking Panel </li></ul><ul><li>Consistent Results For </li></ul><ul><ul><li>Floor Leaks </li></ul></ul><ul><ul><li>Tile Arrangement </li></ul></ul>Top of rack Middle of rack 42U Confidential ©2008 42U All rights reserved Slide
    13. 13. Density Distribution <ul><li>Close-Coupled Cooling </li></ul><ul><li>High-Density Checkerboard </li></ul><ul><li>Strategic Supplemental Equipment </li></ul>42U Confidential ©2008 42U All rights reserved Slide Source: APC, Ten Cooling Solutions, #42
    14. 14. Airflow Containment <ul><li>30-49% Increase in CRAH/ CRAC Capacity </li></ul>42U Confidential ©2008 42U All rights reserved Slide Source: Accenture/LBNL Air Flow Study 2007
    15. 15. Hot Aisle Containment <ul><li>Saves 40% Fan Energy </li></ul>42U Confidential ©2008 42U All rights reserved Slide Source: Accenture/Oracle Data Center Air Flow Management – Hot Aisle Containment
    16. 16. Cold Aisle Containment <ul><li>Saves 75% Fan Energy </li></ul>42U Confidential ©2008 42U All rights reserved Slide Source: Accenture/LBNL Air Flow Study 2007
    17. 17. Technology Alternatives 42U Confidential ©2008 42U All rights reserved Slide Close Coupled Rear Door Ambient Air Supplemental In-Row Active Air 10 15 20 28 35 40 kW Chip + Enclosure
    18. 18. Ambient Air <ul><li>Low Density </li></ul><ul><li>Hot/Cold Aisle </li></ul><ul><li>Raised Floor Plenum </li></ul>42U Confidential ©2008 42U All rights reserved Slide Ambient Air 10 15 20 28 35 40 kW
    19. 19. Rear Door <ul><li>Hot/Cold Aisle Alternative </li></ul><ul><li>Low Capacity </li></ul><ul><li>Isolated Dense Cabinets </li></ul>42U Confidential ©2008 42U All rights reserved Slide Rear Door 10 15 20 28 35 40 kW
    20. 20. Active Air <ul><li>Air Handling Efficiency </li></ul><ul><li>Containment Alternative </li></ul><ul><li>Not Additional Cooling </li></ul>42U Confidential ©2008 42U All rights reserved Slide Active Air 10 15 20 28 35 40 kW
    21. 21. Supplemental In-Row <ul><li>Hot Spot Control </li></ul><ul><li>Supplements CRAC Capacity </li></ul><ul><li>Next-Level Capacity </li></ul><ul><li>In-Row or Overhead </li></ul>42U Confidential ©2008 42U All rights reserved Slide Supplemental In-Row 10 15 20 28 35 40 kW
    22. 22. Close Coupled <ul><li>Closed Loop </li></ul><ul><li>Microclimate </li></ul><ul><li>Isolated </li></ul>42U Confidential ©2008 42U All rights reserved Slide Close Coupled 10 15 20 28 35 40 kW
    23. 23. Chip-Level <ul><li>Extreme Density </li></ul><ul><li>Customized Servers </li></ul><ul><li>Research Environments </li></ul>42U Confidential ©2008 42U All rights reserved Slide 10 15 20 28 35 40 kW Chip + Enclosure
    24. 24. Close Coupled Cooling 42U Confidential ©2008 42U All rights reserved Slide + = Cooling Server Cabinet High-Performance Solution top view
    25. 25. Redundancy <ul><li>Configurable To Meet Need </li></ul>42U Confidential ©2008 42U All rights reserved Slide C O O L I N G M1 M2 M3 C O O L I N G C O O L I N G C O O L I N G
    26. 26. Footprint Reduction 42U Confidential ©2008 42U All rights reserved Slide 40kW 3 Rack Space 20kW 30 – 40 KW 40kW 10 Racks 4kW 4kW 4kW 4kW 4kW 4kW 4kW 4kW 4KW 4kW 4kW C O O L I N G C O O L I N G 20kW 40kW 2 Rack Space C O O L I N G C O O L I N G 40kW
    27. 27. Close Coupled TCO Example <ul><li>10K Square Feet Reduced to 5.6K </li></ul><ul><ul><li>$129K-195K Annual Real Estate Savings </li></ul></ul><ul><li>$69K-302K Annual Energy Expense Reduction </li></ul>42U Confidential ©2008 42U All rights reserved Slide
    28. 28. Economizers <ul><li>Use Environment for Cooling </li></ul><ul><li>Air-Side Inherently More Efficient </li></ul><ul><li>Water-Side Results In Considerable Savings </li></ul><ul><ul><li>Enhance with Reservoir for Off-Peak Cooling </li></ul></ul>42U Confidential ©2008 42U All rights reserved Slide
    29. 29. Water Side Potential 42U Confidential ©2008 42U All rights reserved Slide
    30. 30. Planning Considerations <ul><li>Create a Comprehensive Design </li></ul><ul><li>Consider the Entire Facility </li></ul><ul><li>Examine Alternative Technologies </li></ul><ul><li>Develop Standards </li></ul>42U Confidential ©2008 42U All rights reserved Slide
    31. 31. Efficiency Checklist <ul><li>Reduce Your Electric Bills </li></ul><ul><ul><li>20-50% for No/Low-Cost Changes </li></ul></ul><ul><ul><li>80% for Systematic Efforts </li></ul></ul><ul><ul><li>Self-Funding Phased Plan </li></ul></ul>42U Confidential ©2008 42U All rights reserved Slide Source: The Green Grid, Guidelines for Energy-Efficient Datacenters
    32. 32. Summary <ul><li>Consider the Big Picture </li></ul><ul><li>Basics </li></ul><ul><li>Airflow Containment </li></ul><ul><li>Supplemental Technologies </li></ul><ul><li>Advanced Solutions </li></ul><ul><li>Efficiency Improvement Plan </li></ul><ul><ul><li>C-Level Value </li></ul></ul>42U Confidential ©2008 42U All rights reserved Slide
    33. 33. Q&A 42U Confidential ©2008 42U All rights reserved Slide For More Information Contact Your 42U Data Center Efficiency Consultant: 1-800-638-2638 or www.42U.com For a Copy of Today’s Presentation Email: [email_address] Thank You
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