Data Center Cooling Efficiency, Optimization and Trade-offs Learn how to lower Cooling costs 30-80% while increasing sustainability. Gain insight on advantages and the trade-offs of the many technologies, where combinations of technologies may be best, and learn how cooling solutions play into the upcoming Title 24 Code changes. From Best Practices, Containment (Hot vs. Cold, Passive vs. Managed, Chimney’s and IT Rows), Demand Based Cooling (Managed Distribution), new High Efficiency In Row Cooling (close coupled) technologies (CMS designs = 40% - 60% more efficient), new High Efficiency CRAC/H’s (CMS designs = 40-50% more efficient).

1. Data Center Cooling Efficiency, Optimization, and Trade-offs Presented by Teladata Sponsored by CAPS

2. Greg Stover, NER Data Corporation Senior Vice President “Cooling Efficiency Enthusiast”

3. Greg Stover, NER Data Corporation a focus on Infrastructure Optimization Solutions For data center cooling, and monitoring efficiency!

4. Best in Class Partners

5. Energy Efficiency Is Important

6. Data and Title 24 What Does It Mean? The California Investor Owned Utilities (IOUs) are actively supporting the California Energy Commission (CEC) in developing the state’s building energy efficiency code (Title 24) Their joint intent is to achieve significant energy savings through the development of reasonable, responsible, and cost-effective code change proposals for the 2011 code update and beyond. To go into effect January 1, 2013 As part of the IOU effort, at the request of the CEC, they have been hosting stakeholder meetings to get industry input and feedback on the code change proposals

7. Data Centers and Title 24 Some Things to Expect: VAV/VFD’s on CRAC/H’s - will likely be a requirement Containment - Separation of Hot and Cold air streams will likely be a requirement – No position being taken on Hot vs. Cold Economization–Utilization of “free cooling” will be required (water or airside) Require Adiabatic humidification- (evaporative or ultra sonic) Performance Methods - always an option! These will likely become new code

8. Data Centers and Title 24 Containment examples sited at stakeholders meeting included: Cold Aisle top caps & end caps - (Both raised floor and overhead delivery) Hot Aisle vertical partitions - (using ceiling plenum as a return) Hot Aisle containment with row based/close coupled cooling - (CMS-APC-Liebert) In rack liquid cooling - Like the Rittal design Combined Hot & Cold Aisle - (closed loop) – Cold air flows thru bottom of cabinet, to chimney/ceiling return like the Verari design. Heat Containment Chimneys - Both passive and pressure managedProviding direct plenum exhaust return path.

9. Data Centers and Title 24 Containment examples sited at stakeholders meeting included: Packaged and/or custom Hot Aisle containment – Like Wrightline’sdesign and other custom heat containment rooms. In rack liquid Cooling –Like Knurr design Rear door Heat Exchanger – Like Vette/Cool Centric and future CMS designs Liquid Cooling “Clustered Systems” -This complies as it is liquid cooled, not fan cooled

10. The Basics - Simplify Get cold air where it needs to be, when it needs to be there, in just the right amount Removing heat before it can mix/or cause hot spots

11. The Basics - Simplify 4 keys to cooling efficiency success Cooling side - Supply efficiency Airflow/supply - Delivery efficiency Heat/exhaust side - removal efficiency Supply temp to Inlet temp delta - Narrowing that delta

12. How You Save Money Mechanisms to realize cooling efficiency Reduce or eliminate oversupply Safely raise supply air temperatures Safely raise chilled water temperatures Increase economization utilization

13. How You Save Money

15. Motor moved out of fan Housing

16. Innovative Airfoil Fan design

17. Straight fin Coils

18. Non-Proprietary parts

19. Custom Capabilities

20. 40-70% more efficient (measureable)

21. Chilled Water only today (stay tuned)Close coupled Row based Adiabatic Evaporative Humidification

22. High Efficiency Cooling

24. Up to 1200 CFM

25. Fits under std. size perf. Tile

26. Can be networked to AdaptivCool monitoring system

27. Overhead installation

28. Hot air return to CRAC intake

29. Thermo controlled

30. Two temp sensors

31. 1200 CFM

32. Block back door

33. Retrofit or new cabinets

34. Hot air return to CRAC intake

35. Match exhaust CFM to server CFM

36. 10/20/30kW

39. Normalize temperature throughout data center

40. Pressure based airflow

41. Performance independent of IT equipment type

43. Zero pressure environment

44. Elevated CRAC/H return air temp

46. Maximum supply temp

47. All cool air available for IT load

48. Consistent inlet temps

49. Rack load indifference

50. Max. supply/return delta T=performance

51. Increased ride-thru time

52. Modular and Scalable

54. Infrastructure Optimization Efficiency is not an event, it’s a process Cooling efficiency/airflow optimization is the #2 opportunity to save in the data center Green is good, for the planet and your wallet!

55. Some Recommendations Measure and Monitor your Power & Heat Eliminate problems/inefficiencies caused by heat & air mixing Use Solutions that are demand/load responsive Work with the Utilities – On the front side for rebatesIncentives Become a pro-active partner with Facilities Benchmark/Baseline, Plan & model/visualize for the Future! Come see us Room #205 -CAPS Luxury Suites

56. Thank you for attending!