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Informationen zum Autor ERIC BAUER is a reliability engineering manager in the Software, Solutions and Services Group of Alcatel-Lucent. The holder of more than a dozen U.S. patents, he is the author of Design for Reliability: Information and Computer-Based Systems, Beyond Redundancy: How Geographic Redundancy Can Improve Service Availability and Reliability of Computer-Based Systems, and Practical System Reliability, also available from Wiley-IEEE Press. RANDEE ADAMS is a consulting member of technical staff in the Software, Solutions and Services Group of Alcatel-Lucent and the coauthor of Beyond Redundancy: How Geographic Redundancy Can Improve Service Availability and Reliability of Computer-Based Systems . Klappentext A holistic approach to service reliability and availability of cloud computingReliability and Availability of Cloud Computing provides IS/IT system and solution architects, developers, and engineers with the knowledge needed to assess the impact of virtualization and cloud computing on service reliability and availability. It reveals how to select the most appropriate design for reliability diligence to assure that user expectations are met.Organized in three parts (basics, risk analysis, and recommendations), this resource is accessible to readers of diverse backgrounds and experience levels. Numerous examples and more than 100 figures throughout the book help readers visualize problems to better understand the topic--and the authors present risks and options in bulleted lists that can be applied directly to specific applications/problems.Special features of this book include:* Rigorous analysis of the reliability and availability risks that are inherent in cloud computing* Simple formulas that explain the quantitative aspects of reliability and availability* Enlightening discussions of the ways in which virtualized applications and cloud deployments differ from traditional system implementations and deployments* Specific recommendations for developing reliable virtualized applications and cloud-based solutionsReliability and Availability of Cloud Computing is the guide for IS/IT staff in business, government, academia, and non-governmental organizations who are moving their applications to the cloud. It is also an important reference for professionals in technical sales, product management, and quality management, as well as software and quality engineers looking to broaden their expertise. Zusammenfassung This book addresses IS/IT architects, developers, program managers, product managers, and quality managers who are considering or responsible for applications that will be virtualized or deployed on a cloud. Inhaltsverzeichnis Figures xvii Tables xxi Equations xxiii Introduction xxv I BASICS 1 1 CLOUD COMPUTING 3 1.1 Essential Cloud Characteristics 4 1.2 Common Cloud Characteristics 6 1.3 But What, Exactly, Is Cloud Computing? 7 1.4 Service Models 9 1.5 Cloud Deployment Models 11 1.6 Roles in Cloud Computing 12 1.7 Benefi ts of Cloud Computing 14 1.8 Risks of Cloud Computing 15 2 VIRTUALIZATION 16 2.1 Background 16 2.2 What Is Virtualization? 17 2.3 Server Virtualization 19 2.4 VM Lifecycle 23 2.5 Reliability and Availability Risks of Virtualization 28 3 SERVICE RELIABILITY AND SERVICE AVAILABILITY 29 3.1 Errors and Failures 30 3.2 Eight-Ingredient Framework 31 3.3 Service Availability 34 3.4 Service Reliability 43 3.5 Service Latency 46 3.6 Redundancy and High Availability 50 3.7 High Availability and Disaster Recovery 56 3.8 Streaming Services 58 3.9 Reliability and Availability Risks of Cloud Computing 62 II ANALYSIS 63 4 ANALYZING CLOUD RELIABILITY AND AVA...
