1. Liam Newcombe BCS Data Centre Specialist Group Secretary Energy Efficient Data Centres

2. Energy Use in the Data Centre EU Code of Conduct for Data Centre Operators Cardiff University

3. Asking the Wrong Questions Per Service Energy Use The DCSG Model Cardiff University

4. Asking the Wrong Questions Cardiff University

5. The Power Delivery Path

6. “For each Watt my Data Centre consumes what output do I get?” vs. “For each Service I deliver how much energy do I use?” Cardiff University

8. What is the marginal economic or environmental benefit of operating this IT service? Cardiff University

9. Per Service Energy Use Data Centres Servers Server in a Data Centre Cardiff University

10. Data Centre Power - Where does it go?

11. Per Service Energy Use Data Centres Servers Server in a Data Centre Cardiff University

12. Server Power and Efficiency vs. Workload

13. Per Service Energy Use Data Centres Servers Server in a Data Centre Cardiff University

14. Put the Server in a Data Centre What does DCiE / PUE tell us? Cardiff University

15. Metering Install Detailed Power Metering? What about Blade Servers and Virtualisation? Cardiff University

16. Install Detailed Power Metering?

17. Metering Install Detailed Power Metering? What about Blade Servers and Virtualisation? Cardiff University

18. Metering Fails for Blades or Virtualisation

19. Where to Measure

20. Metering Must be able to link logical to physical Cannot solve our problem Cardiff University

21. DCSG Data Centre Model Cardiff University

22. DCSG Data Centre Model IT Workload IT Device Load to Power Function Data Centre Power Transfer Function

23. EU Code of Conduct for Data Centre Operators Cardiff University

24. Context Goals and Scope Development Best Practice Release Cardiff University

25. Context for the CoC Cardiff University

26. Political Context Carbon reduction commitment Energy security Industry Context Many activities within Industry Risk of Confusion and Mixed Messaging

27. Cardiff University Economic Context Rising energy costs Data Centres represent an increasing proportion of overall business cost Social Context Rising public awareness Data Centres represent an easy target ICT can reduce environmental impact Demonstrate that our industry is not profligate with energy

28. Goals and Scope of the CoC Cardiff University

29. Goals Led by Paolo Bertoldi, Directorate General –“aim is to inform and stimulate Data Centre operators to reduce energy consumption in a cost effective manner without hampering the critical function ….” A Voluntary Commitment Reward best practice with branding and associated EU Green marketing.

30. Cardiff University Scope The Code of Conduct covers: –“Data centres” of all sizes – server rooms to dedicated buildings –Both existing and new –IT power and Facility power –Equipment procurement and system design

31. Cardiff University Scope The Code of Conduct is for: –Participants: Data centre owners and operators –Endorsers: Vendors, consultants, industry associations

32. Development Cardiff University

33. Substantial Interest Broad Participation and Support from –Vendors –Data Centre Operators –End User Organisations Will become a Supplier Selection Criterion

34. Cardiff University Working Groups Best Practice –Focused on design best practice, Software, IT Architecture and Facility Metrics & Measurement –Developing a standard method of comparative measurement of energy efficiency Data Collection & Analysis –Performance benchmarking across the industry

35. Best Practice Cardiff University

36. Best Practice Intent Neither a prescriptive nor exhaustive list of specific technologies Focus on goals Structured to allow the addition of new technologies

37. Cardiff University Best Practice Intent Some Practices are required for Participants Practices that apply to; –Existing estate –New IT equipment –New or refitted Data Centres It is understood that not all operators will be able to implement all required practices

38. Cardiff University Value of Practices Best Practices are guidance to operators on how they might improve energy efficiency Practices are scored 1-5 (min-max) based upon their likely energy use benefit Practices are ordered by score

39. Cardiff University Required Practices Grid and Virtualisation –“Processes should be put in place to require senior business approval for any new service that requires dedicated hardware and will not run on a resource sharing grid or virtualised platform” Select efficient software –“Make the performance of the software, in terms of the power draw of the hardware required to meet performance and availability targets a primary selection factor ”

40. Cardiff University Required Practices New IT Equipment –“Include the Performance per Watt of the IT device as a high priority decision factor in the tender process ” Power Provisioning –“Provision power and cooling only to the as- configured power draw capability of the equipment, not the PSU or nameplate rating ”

41. Example Scenario Cardiff University Same Computing Workload 100 One App Per Server Servers 15 Virtualised Servers 10 HPC Grid Servers Old N+1 Data Centre, Nameplate Provisioning

42. Cardiff University Old N+1 Data Centre, Nameplate

43. Cardiff University Old N+1 Data Centre, Nameplate

44. Cardiff University Old N+1 Data Centre, Nameplate

45. Example Scenario Cardiff University Same Computing Workload 100 One App Per Server Servers 15 Virtualised Servers 10 HPC Grid Servers Old N+1 Data Centre, Peak Provisioning

46. Cardiff University Old N+1 Data Centre, Peak

47. Cardiff University Old N+1 Data Centre, Peak

48. Cardiff University Required Practices Cooling –“ Review and if possible raise target IT equipment intake air temperature ” Above the dew point –“ Review of cooling before IT equipment changes ” –“ Rack air flow management ”

49. Cardiff University Required Practices – Retrofit or New Cooling –“ Design – Contained hot or cold air ” –“ Variable Speed Air Fans ” –“ Rack air flow management ” Utilisation, Management and Planning –“ Lean provisioning of power and cooling for 18 months worth of data floor capacity ”

50. Example Scenario Cardiff University Same Computing Workload 100 One App Per Server Servers 15 Virtualised Servers 10 HPC Grid Servers New N+1 Data Centre, Free Cooling

51. Cardiff University New N+1 Data Centre, Free Cooling 19°C

52. Cardiff University New N+1 Data Centre, Free Cooling 25°C

53. Cardiff University New N+1 Data Centre, Free Cooling 25°C

54. Cardiff University New N+1 Data Centre, Free Cooling 25°C

55. Example Scenario Cardiff University 15 Virtualised Servers Old N+1 Data Centre, Nameplate Provisioning Old N+1 Data Centre, Peak Provisioning New N+1 Data Centre, Free Cooling

56. Cardiff University Comparison of Virtualised Scenarios

57. Cardiff University Comparison of Virtualised Scenarios

58. Cardiff University Required Practices – Retrofit or New Cooling –“ Design – Contained hot or cold air ” –“ Variable Speed Air Fans ” –“ Rack air flow management ” Utilisation, Management and Planning –“ Lean provisioning of power and cooling for 18 months worth of data floor capacity ”

59. CoC Release Cardiff University

60. Release Target Draft released 30 th April 1 st Release September 2008

61. Thank you Find out more Data Centre Specialist Group http://dcsg.bcs.org Cardiff University