CODE 86800 ACADEMIC YEAR 2016/2017 CREDITS 6 cfu anno 2 INGEGNERIA INFORMATICA 8733 (LM-32) - SCIENTIFIC DISCIPLINARY SECTOR ING-INF/05 LANGUAGE Italiano TEACHING LOCATION SEMESTER 1° Semester TEACHING MATERIALS AULAWEB AIMS AND CONTENT SYLLABUS/CONTENT A. Distributed systems Scalability, availability/reliability. Abstractions and models; hypothesis on order and time. Problem of consensus; FLP impossibility and CAP theorem. Strong and weak consistency. Time and order: partial and total order. Relation between time, order and performances. Synchronous and asynchronous replicas. Algorithms that tolerate net partitions: Paxos, Raft, ZAB. Replica mechanisms with strong consistency. Protocols with weak consistency. Data types that have replica convergence (CRDT). CALM theorem. B. Principles and practical of the Cloud Computing What it is. Service models: Infrastructure as to Service (IaaS), Platform as to Service (Paas), Software as to Service (SaaS). Contractual aspects and business models. Socio-economic aspects. Technology of Cloud Computing. Examples of Cloud services (Web Services, SaaS, PaaS, IaaS). Organization and management of data in the Cloud. Examples of modern applications (searching, indexing, ranking, collective intelligence). Economic aspects. Security and governance of Cloud (public, private, hybrid). C. Introduction to Green IT From traditional server to virtualized server in the Data Center. The organization of a modern Data Center. The issues of power efficiency. The evolution of networks inside Data Centers. RECOMMENDED READING/BIBLIOGRAPHY Mikito Takada, “Distributed Systems for fun and profit”, free e-book [http://book.mixu.net/distsys/], 2013. Richard Hill et al., “Guide to Cloud Computing”, Springer (also as ebook), 2012. Marty Poniatowski, “Foundation of Green IT: Consolidation, Virtualization, Efficiency, and ROI in the Data Center”, Prentice Hall (also as ebook), 2009. TEACHERS AND EXAM BOARD GIUSEPPE MARINO Exam Board GIUSEPPE MARINO (President) ANTONIO BOCCALATTE LESSONS Class schedule VIRTUALIZATION AND CLOUD COMPUTING EXAMS EXAM DESCRIPTION Case study of a real application and oral examination. ASSESSMENT METHODS To achieve competence in recognizing the specific issues of distributed systems, to be able to outline viable technical solutions. To acquire competence in evaluating and comparing projects of Cloud architectures and in designing simple applicative services on the Internet.
