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Rob Johnson and Geoff Constable, Information Services, Aberystwyth University rob.johnson@aber.ac.uk geoff.constable@

Rob Johnson and Geoff Constable, Information Services, Aberystwyth University rob.johnson@aber.ac.uk geoff.constable@aber.ac.uk http://paws.aber.ac.uk. PAWS - P owerdown A nd W ake S ystem. Motivation Background and history Greening ICT Project Funding How it works Rival products

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Rob Johnson and Geoff Constable, Information Services, Aberystwyth University rob.johnson@aber.ac.uk geoff.constable@

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  1. Rob Johnson and Geoff Constable, Information Services, Aberystwyth University rob.johnson@aber.ac.uk geoff.constable@aber.ac.uk http://paws.aber.ac.uk

  2. PAWS - PowerdownAnd Wake System • Motivation • Background and history • Greening ICT Project Funding • How it works • Rival products • Future

  3. Motivation • Need for public sector bodies to be more efficient and save costs • Deployment in student workstations achieves both without downgrade to service • Pressures on Universities to be more green • Win/win money and CO2 saved

  4. What is PAWS? • Desktop power management with auto-sleep and wake capabilities • Prototype deployed live in AU student workstations • 650 Desktop PC’s were on 24/7 • Now only awake while in use • Awake 110 watts; asleep 1 watt

  5. Cost savings… • 1 computer = 2.5 KW/h units of electricity per day… • Without power management: • 4375 units of electricity per day • £127,750 per year! • The average utilisation: • public service computer = 20% • staff computer = 23%... • With PAWS power management in place: • A total potential saving of £100,000 per year for 1750 computers at just Aberystwyth University!

  6. Live statistics can be viewed and displayed… These live statistics provided at http://power.aber.ac.uk/paws

  7. JISC Greening ICT Funding of PAWS Phase 2 • Received a £50Kgrant • Two main goals: • 1. Staff environment • 2. Portability to other Institutions • Funding is until December 2011. • Open source community • Chance to work with other organisations in delivering the solution where their IT infrastructure will be different • Swansea University and Trinity St David Universities

  8. User Interface

  9. Administrator Interface

  10. Main Features of PAWS? • Server Controlled • End user has the power! • Savings statistics are auto-generated

  11. Sleep Modes • Sleep when logged out • Forced/scheduled sleep • Warned sleep • Idle sleep • Scheduled/remote wake-up

  12. Wake-on-LAN • Technology to remotely wake up computers • Means the computer can be put to sleep… • …then woken up remotely • User has control from Client Manager GUI • Can wake computers for out-of-hours maintenance

  13. Extras that the PAWS PSV Client provides… • Monitors and logs computer and energy use • Useful for auditing, planning and logistics • Automatic logout – provides user security • Abandoned memory stick alert!

  14. Pros • Financial - £100k savings per 1750 computers p/a • Environmental - 700 tonnes of CO2 per 1750 PCs p/a • Free – open source under Apache GPL • Can be developed further, or tuned to local environment

  15. Cons • Client Agent must be installed on host PC • Easier with new PCs and standard build • With legacy PCs WoL must be configured (working on scripts to automise installation) • Maintenance, Support • Not out-of-the-box (yet)

  16. Alternatives • 1E Nightwatchman approx £10/PC p/a • Powerman – cheaper, but… • Group Policies • Free utilities – lack central provision • User settings

  17. Progress • Interface development • Agent development • Beta test rollout completed to I.S. Development Team • Beta test now fully functioning • Moved to 64-bit server

  18. Next steps • User guides and help pages • Roll-out to I.S. and Estates Departments • Evaluation of roll-out and user feedback • Generic development • Implementation in Swansea/TSD • Publication of Open Source Code

  19. Goals • Useful resource for the educational and public sector • Adoption by all Welsh universities would save £1million p/a in bills… • … and 7,000 tonnes CO2 p/a • Adoption by organisations and users • Community development and support • Possible sustainability based on support model

  20. Rob Johnson and Geoff Constable, Information Services rob.johnson@aber.ac.uk geoff.constable@aber.ac.uk http://paws.aber.ac.uk

  21. Rob Johnson and Geoff Constable, Information Services, Aberystwyth University rob.johnson@aber.ac.uk geoff.constable@aber.ac.uk http://paws.aber.ac.uk

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