1. Reducing our carbon footprint The University of Sheffield Approach

2. 5/9/2015© The University of Sheffield 2 Overview Background Desktops Printing Data Centres

3. 5/9/2015© The University of Sheffield 3 Background 13,000 PCs on campus Over 100 IT services Two data centres Centralised and distributed printing

4. 5/9/2015© The University of Sheffield 4 PC Energy usage Work done by Chris Cartledge/Ian Jenkinson on processor wattage Work on monitor energy usage needed Work on other components (disc drives, memory?) Thin client solutions

5. 5/9/2015© The University of Sheffield 5

6. 5/9/2015© The University of Sheffield 6 Printing 50 million sheets of paper used 2007-2008 Only 28% of paper recycled 2010 – 98% ‘recycled or environmentally preferable’ 835,000 Kwh p/a; 450 tonnes CO2

7. Printing Environmental Print Review Recommendations Print Audit Print submissions software Pulling together print/photocopying under CiCS Student Printing Prepay replaced old collect and pay system 5/9/2015© The University of Sheffield 7

8. 5/9/2015© The University of Sheffield 8 Data Centres Main activities Virtualisation Simple fixes Air-conditioning

9. 5/9/2015© The University of Sheffield 9 Virtualisation Pre 2010 50ish physical Intel servers 100ish physical Sparc servers Doesn’t include HPC 2010 20ish physical Intel servers inc 4 VM boxes 110 VMs 50ish physical Sparc machines 4 Sparc zone hosts Further consolidation on the way

10. 5/9/2015© The University of Sheffield 10 VM Savings 1 physical server c£250 p/a energy 1 Virtual server c£750 p/a energy 4 virtual servers running 110 VMs Savings = £500 * 106 = £10,600 p/a

11. 5/9/2015© The University of Sheffield 11 Virtualisation - disk Pre 2007 15 different disk enclosures Directly attached storage on Novell and windows servers 2007-2010 2 physical disk enclosures Staged removal of DAS Nearly all storage now on NetApp disks

12. 5/9/2015© The University of Sheffield 12 Simple fixes HPC – low energy memory Lower energy processors (AMD HE) Environmental considerations part of every project Air conditioning

13. Brunswick electricity use 5/9/2015© The University of Sheffield 13

14. CC electricity use 5/9/2015© The University of Sheffield 14

15. 5/9/2015© The University of Sheffield 15 Free Cooling project Hot aisle containment Chiller units only active when ambient temperature rises above input temperature Savings of c£60,000 p/a approx Capital cost may be between £200k-£400k Pump-priming money may be available (Salix)

16. To Discover And Understand.