The document discusses green IT and datacenter consolidation. It provides context on green IT, noting that IT accounts for 2% of global energy demand. Green IT strategies discussed include prolonging equipment lifetime, software optimization, virtualization, and power management. Datacenter consolidation aims to reduce costs, improve service levels and availability, and minimize external pressures by optimizing utilization of hardware and facilities. The world's most sustainable datacenter, the Cap Gemini Merlin DC, is highlighted for its fresh air cooling, modular design, proven high PUE of 1.09, and other green features.

1. Inéov, 7th of JuneGreen IT & DC ConsolidationYannick Tricaud

2. AgendaGreen IT : context & foundationsGreen IT : Strategy & Prospective CG Datacenter : The world’ s most sustainable data centerDatacenter Consolidation

3. Green IT / Green Computing : Few numbersIT energy management is the analysis and management of energy demand within the information technology arena. IT energy demand accounts for approximately 2% of global energy demand, approximately the same level as aviation. IT can account for 25% of a modern office building’s energy cost.The main sources of IT energy demand are PCs and Monitors, accounting for 39% of energy use, followed by data centers and servers, accounting for 23% of energy use.Communication & Information Infrastructure (TIC) eat 13,5 % of the power in France and are responsible of 5% of CO2 footprint in the country. PC consumption of electricity increases by 5% every year. Electrical power accounts for 10 % within CIO budget. Electrical power cost over PC lifecycle is now much higher than PC purchase. PC manufacturing in China rejects 24 times more CO2 than a one year usage in France.. Average Server Utilization rate : < 6 % (even below 3% for 30 % installed into one DC) 5 à 10 % for Wintel server, 20 % for Unix, between 50 à 60 % for large systems => 20% in average for large company (IDC). DC Utilization rate : 56 % of its capability.

4. Green IT / Green Computing : ApproachesDifferent way to optimize energy consumption and ecological footprintProduct LongevityPC manufacturing process accounts for 70 % of the natural resources used in the life cycle of a PCthe biggest contribution to green computing usually is to prolong the equipment's lifetimemanufacturing a new PC makes a far bigger ecological footprintthan manufacturing a new RAM module to upgrade an existing one, a common upgrade that saves the user having to purchase a new computerSoftware and deployment optimizationAlgorithmic efficiency : The efficiency of algorithms/program has an impact on the amount of computer resources required (eg. Harward Survey on Google search; GreenIt benchmark)

5. Green IT / Green Computing : ApproachesSoftware and deployment optimizationResource allocation : Algorithms can also be used to route data to data centers where electricity is less expensive (eg. Recent MIT Research : 40% savings…). Could be used also to optimized green energy usage or the location depending on environmental factors :Local availability of renewable energy,

6. climate that allows outside air to be used for cooling, or locating them where the heat they produce may be used for other purposes could be factors in green sitting decisions.Virtualization : Computer virtualization refers to the abstraction of the primary resources (eg. Computer, disk, cloud…). Main benefits are :reduced operating and capital costs,

7. improved utilization of computing resources (CUOD ;

8. Improved the security layers (user isolation, NW segregation…)

9. greater IT staff productivity (Master deployment…)Green IT / Green Computing : Power managementTerminal servers : Terminal servers have also been used in green computing. When using the system, users at a terminal connect to a central server; all of the actual computing is done on the server, but the end user experiences the operating system on the terminal. These can be combined with thin clients, which use up to 1/8 the amount of energy of a normal workstation, resulting in a decrease of energy costs and consumption. Benefits are : Lower power consumption

10. TCO (asset Mgt / capitalization…)

11. Data security / Data leak protectionPower managementOperating system support : Windows 2000 was the first NT based operating system to include power management and the Group Policy. It allows the OS to control the power saving aspects : undervolting, SpeedStep (Intel) solution ; and further (standby / Hybernation…)

12. Green IT / Green Computing : Datacenter Focus is now clearly on facilities and power consumption !

13. Cap Gemini Merlin DC : The world’ s most sustainable data center.

14. What we set out to achieve: – A World Leading Data CentreSustainability –Reduce power, Reduce Water, Reduce contaminants

15. Energy Efficiency – World leading PUE

16. Resilient –Tier 3 Certification

17. Secure –IL3 with flexibility and limited impact to change

18. Cost per square metre in lowest quartile –Equipment choice, Asset depreciation

19. Modular –Reuse, Recycle, Redeploy

20. Location –Reuse an existing building, low carbon impactSustainabilityRecycling / Re-use, reduction in Embedded Carbon

21. Existing building

22. Dust, noise and other pollution associated with site works is almost entirely eliminated

23. Modules 100% reusable

24. 95% is recyclable

25. Sustainable materials

26. No Batteries – flywheel UPS

27. Merlin uses 30% less than traditional Water cooled Data centre facilities

28. A centralised production facility reduces transport and vehicle movements and associated CO2 emissions Energy Efficiency100% fresh air cooling (subject to record weather and emergency conditions)