The content and access dynamics of a busy Web site: findings and implications
Proceedings of the conference on Applications, Technologies, Architectures, and Protocols for Computer Communication
Minimal replication cost for availability
Proceedings of the twenty-first annual symposium on Principles of distributed computing
Proceedings of the 2003 conference on Applications, technologies, architectures, and protocols for computer communications
Theoretical and practical limits of dynamic voltage scaling
Proceedings of the 41st annual Design Automation Conference
Content Delivery Networks: Status and Trends
IEEE Internet Computing
Insight and perspectives for content delivery networks
Communications of the ACM - Personal information management
Shark: scaling file servers via cooperative caching
NSDI'05 Proceedings of the 2nd conference on Symposium on Networked Systems Design & Implementation - Volume 2
The GREEN-NET framework: Energy efficiency in large scale distributed systems
IPDPS '09 Proceedings of the 2009 IEEE International Symposium on Parallel&Distributed Processing
Cutting the electric bill for internet-scale systems
Proceedings of the ACM SIGCOMM 2009 conference on Data communication
Energy Consumption of Residential and Professional Switches
CSE '09 Proceedings of the 2009 International Conference on Computational Science and Engineering - Volume 01
CDNsim: A simulation tool for content distribution networks
ACM Transactions on Modeling and Computer Simulation (TOMACS)
How can architecture help to reduce energy consumption in data center networking?
Proceedings of the 1st International Conference on Energy-Efficient Computing and Networking
A comparison of high-level full-system power models
HotPower'08 Proceedings of the 2008 conference on Power aware computing and systems
An energy consumption model for virtualized office environments
Future Generation Computer Systems
Utilization-aware redirection policy in CDN: a case for energy conservation
ICT-GLOW'11 Proceedings of the First international conference on Information and communication on technology for the fight against global warming
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Energy management in large scale distributed systems has an important role to minimize the contribution of Information and Communication Technology (ICT) industry in global CO2 footprint and to decrease the energy cost. Content Distribution Networks (CDNs) are one of the popular large scale distributed systems, in which the client requests are forwarded towards servers and are fulfilled either by surrogate servers or by the origin server, depending upon the contents availability and the CDN redirection policy. In this paper we explore the energy consumption in CDNs using different client redirection policies. We propose a new model to measure energy consumption in the CDN surrogates. The surrogate servers' utilization is used as a key criteria to measure the consumed energy. We show the impact of minimizing the number of surrogate servers on the energy consumption and on the other performance evaluation parameters in CDNs (e.g. servers utilization, mean response time, byte hit ratio). We also exhibit, how the energy consumption and the other performance evaluation parameters are affected by the change in the number of content requests, i.e. by the traffic load.