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Commercial Overview DC Session 3 The Greening Of The Data Centre


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Commercial Overview DC Session 3 The Greening Of The Data Centre

  1. 1. Data Centre Environments CCS Commercial Overview Session 3 The Greening of the Data Centre 16th December 2008 Paul Mathews MInstSMM Global Channel Manager
  2. 2. Introduction to Data Centres • The heartbeat of any business, designed to manage the flow, processing and storage of information • Must be reliable, secure and flexible to enable growth and reconfiguration • A data centre can support small singular businesses through to thousands of clients ecommerce facilities • “A building or portion of a building whose primary function is to house a computer room and its support areas,” according to TIA 942
  3. 3. Energy usage in Data Centres • Average 200 sq m computer room in a data centre uses 52 more times electricity than an office LAN • An average of 7500 kW hours per sq m / pa • Present day servers generate around 2.5 kW of heat per sq m – this is expected to rise to 10 kW as CPUs become densely populated • A floor tile emits an average of 1.2 tonnes of carbon omissions pa • Based on costs of £450.00 per sq m would result in savings over £9000 if efficiency was improved by 10%
  4. 4. Energy wastage in Data Centres • Huge financial industry burden and public policy environmental issue • If a Data Centre could be 100% efficient, all electrical power would need to reach the IT loads • Real world environments see non-IT physical infrastructure devices consuming power (manifested as heat), including: - Transformers - UPS This all needs cooling (therefore - Power wiring - Fans consumes more power) - Air conditioners - Pumps Increased redundancy means - Humidifiers more energy required - Lighting
  5. 5. Why are data centres inefficient? • Over sizing of the physical infrastructure creates fixed losses of electrical power and cooling systems • Data Centre industry power and cooling usage worldwide wastes more than 60,000,000 megawatt-hours per year of electricity • Data Centres typically run at 30-50% of capacity • Losses in energy are proportional to overall electrical power ratings of a system, regardless of IT load (so installations with light IT loads, fixed losses of the physical infrastructure equipment often exceed IT load) Example: • Every 10 Watts of power delivered to a data centre loaded to 10% of its rated capacity, only 1 Watt actually reaches the IT equipment, remaining 9 Watts are lost to energy inefficiencies • Generally, 50% of energy in data centres goes to IT Loads, the other 50% to physical infrastructure equipment including electrical power devices
  6. 6. Data Centre Infrastructure Efficiency (DCiE) • Data centres needs to become more green • Measuring data centre efficiency is measured as the ratio of watts to the IT Load / Watts to the data centre (DCIE) • To maximise DCiE, efficiency measurements for the whole data centre should be monitored and targeted for improvement in an ongoing strategy
  7. 7. DCiE Architecture (Data Centre Subsystem) • IT Load • Auxiliary devices • Lights • Humidifiers • Chillers • Pumps • Heat Rejection • CRAC • Distribution Wiring • Switchgear • Generator • PDU • UPS
  8. 8. Data Centre Greening Improvement Guidelines – Part 1 • Electrical power and cooling equipment not needed should not be energised • Minimise over sizing where possible, so equipment operated within the optimum region of efficiency • Electrical power, cooling and lighting equipment should utilise up-to-date technology to minimise power consumption • Sub-systems used for redundancy should be optimised for their fractional load capacity, not the full load efficiency
  9. 9. Data Centre Greening Improvement Guidelines – Part 2 • Use a capacity management tool to manage the amount of electrical power and cooling to the Data Centre, ensuring ‘stranded capacity’ is minimised • To optimise the efficiency of zones/areas within the data centre, an integrated physical configuration should control the system and not just one room Example Row-based cooling for racks should be integrated with IT racks, independent from the room based cooling • Integrate management systems to monitor and alert electrical consumption levels that cause high inefficiency levels
  10. 10. Data Centre Greening Improvement Guidelines – Part 3 Cabling • Design cabling and racks to maximise air flow (use blanking panels in cabinets, hot and cold aisle placement) • Use pre-terminated cabling to reduce waste • Consider optical fibre: - kinder to the environment in manufacturing v copper - bullet proof for longer life cycle - components consume less power v copper - higher bandwidth, extended distance (performance) - cabling such as Connectix Starlight MTP reduces amount of cables and improves air flow
  11. 11. Sizing the Data Centre • Sizing the physical infrastructure inline with the IT Load will have the most impact on electrical consumption • Scalable physical infrastructures that can grow with IT Load offer the best opportunity to limit electrical waste and costs • A well designed, correctly sized physical infrastructure can eliminate up to 50% of the electrical bill in real-world installations • So….. Design a modular, scalable physical infrastructure
  12. 12. Sub-system Greening Part 1 • Scalable electrical power and cooling: Helps increase efficiency in smaller data centres or data centres early in their life form Helps defer capital and operating costs until needed • Row-based cooling: Shortens the air flow path to improve predictability of air distribution Perimeter CRACs operate at 80% efficient at 70% IT Load Row-base CRACs operate at 95% efficient at 70% IT Load
  13. 13. Sub-system Greening Part 2 • High-efficiency UPS Current new products can improve efficiency by over 10% compared to current installed UPS • Capacity management tools A mixture of tools and company regulations that implements a safe operating system that is higher density and more efficient, designed to reduce capital costs and energy bills
  14. 14. Energy Efficiency Best Practices • Install blanking panels • Coordinate CRAC Units • Improve under floor airflow • Implement hot and cold aisles • Install sensors to monitor temperature • Implement cold aisle or hot aisle containment Additional information can be found in the Gartner report ‘How • Raise the temperature in the data centre (ASHRAE) to Save a Million Kilowatt Hours to improve electrical use in your Data Centre’ • Exploit ‘free cooling’ • Design new data centres and computer rooms using modular cooling
  15. 15. Data Centre Whitepapers • Data Centre Design Whitepaper http://www.connectixcablingsystems.com/library/detail.cfm?item=10
  16. 16. Connectix Technical Articles • Log on to www.connectixcablingsystems.com for full access to our data centre and high speed LAN support articles • Log on to www.connectixcablingsystems.com/events for details of our Data Centre Design Principle Seminars run in association with The IET IET Endorsed CIBSE Continuing Training Professional Development BICSI Continuing Education Credits provider