Μελέτη ενεργειακά αποδοτικής λειτουργίας κέντρων αποθήκευσης και υποδομών υπολογιστικού νέφους μέσω προσομοίωσης
Simulation study of energy efficient operation of datacenters and cloud computing infrastructures
KeywordsΑσφάλεια πληροφοριακών συστημάτων
The aim of this thesis is the study and simulation of collaborative energy consumption algorithms in order to maintain energy efficiency at high levels for large-scale storage centers and data management. The increasing demand of applications for computing power and storage space combined with the model of cloud computing systems led to the creation of large-scale data centers. These centers consume huge amounts of electricity resulting in high operating costs and increased emissions of carbon dioxide. In this thesis we study and evaluate the energy policies and algorithms using the CloudSim platform, an extensible java library which supports large cloud computing infrastructures. The cloud computing systems and theirs key components are introduced in the first chapter. We talk about their classification based on cloud computing models and topology. We analyze their advantages and disadvantages, their communication protocols and safety. Finally, we analyze the SLAs management based on Quality of Services (QoS). The CloudSim toolbox, the basic ingredients and the life cycle are presented in the second chapter. Furthermore, the energy consumption algorithms are presented and analyzed. The comparison of energy efficiency algorithms and the conclusions that we got from the simulation results are presented and analyzed in the third chapter.