1. ENERGY MONITORING AND MANAGEMENT OF ICT INFRASTRUCTURE Supervisor: Pr. Ioannis Vlahavas SCHOOL OF SCIENCE & TECHNOLOGY Andreadou Despoina MSc in ICT Systems October 2011

2. 2  An exponentially rising amount of data available to users.  More data intensive applications.  Higher access speeds.  Higher network core capacity. ICT equipment is becoming more “energy hungry”, due to:

3. 3 It is estimated that ICTs are responsible for 2-2.5% of global greenhouse gas emissions. Environmental concerns

4. 4 “Market research firm IDC estimates that within the next six years, the companies operating data centres will spend more money per year on energy than on equipment”. CompanyElectricity (MWh)Cost 5% Reduction in Power Consumption Savings eBay~60,000~$3.7M $0.28M Akamai~170,000~$10M $0.31M Rackspace~200,000~$12M $0.6M Microsoft>600,000>$36M $1.8M Google>630,000>$38M $2.09M USA (2006)61,000,000$4.5B $1023M MIT campus270,000$62M $46.61M Financial concerns

5. 5 “ With regard to climate change, ICT is part of the solution, and not the problem”  Models based on event or performance counters  Models based on CPU and resource utilization in general  Models based on simulators  Coarse-grained models MethodAccuracy Usable parameters Predictable output Speed Heterogenity Support Simulator√√xxx CPU-based√√√√√x Event Counters√√xx√ Coarsex√√ x

6. 6 where: P t = total power consumption of the system. P s = servers’ power consumption. P PC = PCs’ power consumption. P Wi-Fi = Wi-Fi access points’ power consumption. Pr= routers’ power consumption. P print = printers’ power consumption. P CM = power consumption of the call manager.

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9. 9 active (W)standby (W)sleeping (W)off HP laserjet p3005600990 HP laserjet 4700 56755170 HP colour laserjet cp3525 643 60 i)35.1 ii)10 0 HP colour laserjet cp2025dn 445 18 6.70 Xerox workcentre 5675 1640 i)290 ii)120 40

10. 10 Active (W)Off (W) 100 Active (W)Off cisco catalyst 2960-48TT300 cisco catalyst 2960-48TT300 cisco catalyst 3560-48PS600 cisco catalyst 3560G-24TS700 cisco catalyst 2970-800 cisco catalyst 2800600 cisco catalyst 3800-38453000

11. 11 Mobile Application

12. 12 Mobile Application

13. 13  Dynamic Voltage and Frequency Scaling (DVFS).  Different Energy States/Sleeping Modes in ICT equipment during different utilization requirements.  Virtualization. .....etc. Power Management Techniques

14. 14 CONCLUSIONS  Power monitoring and management can and will facilitate energy savings in modern ICT systems.  Power models are less accurate as software & hardware becomes more sophisticated.  It is left as future work to intervene to the hardware and remotely deactivate/activate devices which may be underutilized/needed.

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