Energy efficiency in office computing environments [Elektronische Ressource] / Andreas Berl

Fakulät für Informatik und MathematikUniversität Passau, GermanyEnergy Efficiency inOffice Computing EnvironmentsAndreas BerlSupervisor: Hermann de MeerA thesis submitted forDoctoral DegreeMarch 20111. Reviewer: Prof. Hermann de MeerProfessor of Computer Networks and CommunicationsUniversity of PassauInnstr. 4394032 Passau, GermanyEmail: demeer@uni-passau.deWeb: http://www.net.fim.uni-passau.de2. Reviewer: Prof. David HutchisonDirector of InfoLab21 and Professor of ComputingLancaster UniversityLA1 4WALancaster, UKEmail: dh@comp.lancs.ac.ukWeb: http://www.infolab21.lancs.ac.ukAbstractThe increasing cost of energy and the worldwide desire to reduce CO emissions2has raised concern about the energy efficiency of information and communica-tion technology. Whilst research has focused on data centres recently, this thesisidentifies office computing environments as significant consumers of energy.Office computing environments offer great potential for energy savings: On onehand, such environments consist of a large number of hosts. On the other hand,these hosts often remain turned on 24 hours per day while being underutilised oreven idle. This thesis analyzes the energy consumption within office computingenvironments and suggests an energy-efficient virtualized office environment. Theoffice environment is virtualized to achieve flexible virtualized office resourcesthat enable an energy-based resource management.