Energy Logic: How to Cut Data Center Costs by 50 Percent or More


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In this presentation from TechUniversity 2008, learn about Emerson Network Power's 10-step Energy Logic roadmap for reducing energy consumption. From processor efficiency to variable capacity cooling, this presentation will show you how to prioritize and quantify your energy saving decisions

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  • Data Centers draw a lot of power, so. IT is not in the business of worrying about power consumption or increasing energy costs, we care about performance, reliability, ease of support, and security and anything else that impacts our ability or inability to meet our Customer SLA’s. In most cases we don’t even know what our energy costs are. We have a data center tucked away in a room inside of dual use facility, maybe an office building, manufacturing location, where all of those energy costs roll up into the total facility and are allocated based on some square footage calculation. IT never even sees it. Well I was like that until a year ago, when out of the blue we received notice from an outsource provider supporting our main corporate data center forewarning us of a power shortage that is going to increase our operating costs by 100%, and oh by the way this is occurring in 8 months, and thanking us business. Okay now you got my attention. As I dug into this, not an isolated event, seems to occurs more and more often, and from listening to some of these presentations, frequency will increase. One of the main problems is getting the IT community to understand the issues of energy efficiency. Either they get hit between the eyes like us, or it must become a priority for the company to lower energy costs. And the first step in this process is to answer the question, what do I spend today? And how will these actions impact performance and reliability. Let me show how we have used this to our advantage in Emerson.
  •  Energy Logic: How to Cut Data Center Costs by 50 Percent or More

    1. 1. Energy Logic: How to Cut Data Center Costs by 50 Percent or More Jack Pouchet, Director of Energy Initiatives, Emerson Network Power
    2. 2. Agenda <ul><li>Energy efficiency: </li></ul><ul><ul><li>Where we are today </li></ul></ul><ul><ul><li>What data center managers are looking for </li></ul></ul><ul><li>Energy-saving strategies </li></ul><ul><ul><li>Energy Logic: data center model </li></ul></ul><ul><ul><li>Impact of Energy Logic </li></ul></ul><ul><ul><ul><li>Cascade effect </li></ul></ul></ul><ul><ul><ul><li>Energy consumption </li></ul></ul></ul><ul><ul><ul><li>Capacity freed up </li></ul></ul></ul><ul><ul><ul><li>Payback </li></ul></ul></ul><ul><ul><li>The 10 strategies </li></ul></ul><ul><li>Recommendations and key take-aways </li></ul><ul><li>Energy efficiency </li></ul><ul><ul><li>Where we are today </li></ul></ul><ul><ul><li>What data center managers are looking for </li></ul></ul>
    3. 3. Energy Efficiency Emerging as a Top Concern of Data Center Managers Along with Power, Cooling & Space Constraints & Availability <ul><li>What are your top facility / network concerns? </li></ul>Source: Data Center Users’ Group Surveys © 2007 Emerson Network Power
    4. 4. IT Perspective on Energy Efficiency <ul><li>Top priority is delivering on service level agreements </li></ul><ul><ul><li>Performance - provide adequate compute capacity </li></ul></ul><ul><ul><li>Reliability - redundancy at all steps </li></ul></ul><ul><ul><li>Ability to support </li></ul></ul><ul><ul><li>Security </li></ul></ul><ul><li>Does IT care about energy efficiency? </li></ul><ul><ul><li>Yes, but not if it impacts performance and reliability </li></ul></ul><ul><li>What if it frees up power and cooling capacity? </li></ul><ul><ul><li>Yes! If it does not impact performance and reliability </li></ul></ul>
    5. 5. What Data Center Managers Are Looking For <ul><li>Objective ‘vendor-neutral’ analysis </li></ul><ul><li>Holistic view of the data center </li></ul><ul><li>Quantification of savings from different strategies </li></ul><ul><li>Prioritization of actions </li></ul><ul><li>Actionable advice </li></ul><ul><li>Tailored to different types of data centers </li></ul><ul><ul><li>24x7 vs. 8x5; compute-intensive vs. transaction-intensive </li></ul></ul><ul><li>Payback / ROI analysis to help sell to management </li></ul>
    6. 6. Agenda <ul><li>Energy efficiency </li></ul><ul><ul><li>Where we are today </li></ul></ul><ul><ul><li>What data center managers are looking for </li></ul></ul><ul><li>Energy saving Strategies </li></ul><ul><ul><li>Energy Logic: Data Center Model </li></ul></ul><ul><ul><li>Impact of Energy Logic </li></ul></ul><ul><ul><ul><li>Cascade Effect </li></ul></ul></ul><ul><ul><ul><li>Energy consumption </li></ul></ul></ul><ul><ul><ul><li>Capacity freed up </li></ul></ul></ul><ul><ul><ul><li>Payback </li></ul></ul></ul><ul><ul><li>The 10 Steps </li></ul></ul><ul><li>Recommendations and key take-aways </li></ul><ul><li>Energy-saving strategies </li></ul><ul><ul><li>Energy Logic: data center model </li></ul></ul><ul><ul><li>Impact of Energy Logic </li></ul></ul><ul><ul><ul><li>Cascade effect </li></ul></ul></ul><ul><ul><ul><li>Energy consumption </li></ul></ul></ul><ul><ul><ul><li>Capacity freed up </li></ul></ul></ul><ul><ul><ul><li>Payback </li></ul></ul></ul><ul><ul><li>The 10 strategies </li></ul></ul>
    7. 7. Fact: No Universal Metric For Data Center Output In the absence of this metric, discussing data center efficiency is not meaningful. We can only talk about reducing data center energy consumption.
    8. 8. Simple Data Center Layout (Energy Demand, Distribution and Supply) © 2007 Emerson Network Power
    9. 9. Energy Logic: What is it? <ul><li>Emerson Network Power approach to reducing data center energy consumption </li></ul><ul><li>Sequential roadmap that starts with IT equipment and moves through to support infrastructure </li></ul><ul><ul><li>Emphasis is on cascade of savings </li></ul></ul><ul><li>Based on research and modeling </li></ul><ul><li>Provides quantified savings and an estimated ROI </li></ul><ul><li>Frees up power, cooling and space capacity without compromising availability or flexibility </li></ul>
    10. 10. Energy Logic: Three Key Messages <ul><li>1. The most effective strategy to save energy: </li></ul><ul><ul><li>Start with reducing losses / consumption at the IT equipment level and work your way back through the supporting equipment </li></ul></ul><ul><ul><ul><li>Every watt saved at the equipment level has a cascading effect upstream </li></ul></ul></ul><ul><li>2. As you reduce energy consumption, make sure you do not compromise on availability and flexibility </li></ul><ul><ul><li>Efficiency Without CompromiseTM </li></ul></ul><ul><li>3. High-density architecture helps reduce energy consumption </li></ul>
    11. 11. Energy Logic: Model Assumptions Model Helps Quantify Impact of Actions <ul><li>5,000 sq. ft. </li></ul><ul><li>Server refresh rate: 4 to 5 years </li></ul><ul><ul><li>Data center has mix of servers ranging from new to 4-years old </li></ul></ul><ul><ul><li>No virtualization or blades </li></ul></ul><ul><li>No high-density loads </li></ul><ul><ul><li>Average density ~ 3 kW/rack (120 W/sq. ft.) </li></ul></ul><ul><li>Total compute load about 600 kW </li></ul><ul><li>UPS configuration 2x750 kVA 1+1 redundant </li></ul><ul><li>Hot-aisle / cold-aisle configuration </li></ul><ul><li>Floormount cooling (connected to building chilled water plant) </li></ul><ul><li>MV transformer (5 MVA) at building entrance with associated switchgear </li></ul>
    12. 12. Data Center Energy Consumption Model 5,000 Sq. Ft. Data Center © 2007 Emerson Network Power
    13. 13. The ‘Cascade’ Effect 1 Watt saved at the server component level results in cumulative savings of about 2.84 Watts in total consumption © 2007 Emerson Network Power
    14. 14. Energy Logic: Cascade Savings Strategies © 2007 Emerson Network Power
    15. 15. <ul><li>To view this presentation in its entirety, visit: </li></ul><ul><li> </li></ul>