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Service Availability

Author: Takashi Nanya

Publisher: Springer Science & Business Media

Published: 2008-04-29

Total Pages: 236

ISBN-13: 3540681280

This book constitutes the refereed proceedings of the 5th International Service Availability Symposium, ISAS 2008, held in Tokyo, Japan, in May 2008. The 12 revised full papers presented together with 2 keynote papers and 2 tutorials were carefully reviewed and selected from 28 submissions. The papers are organized in topical sections on enterprise system dependability, software service availability, service availability platform, and service dependability analysis.

Service Availability

Author: Dave Penkler

Publisher: Springer Science & Business Media

Published: 2006-12-14

Total Pages: 297

ISBN-13: 3540687246

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This book constitutes the thoroughly refereed post-proceedings of the Third International Service Availability Symposium, ISAS 2006, held in Helsinki, Finland, in May 2006. The 19 revised full papers presented were carefully reviewed and selected from 38 submissions. The papers are organized in topical sections on availability modeling, estimation and analysis, dependability techniques and their applications, performability: measurements and assessments, service availability standards: experience reports and futures.

Service Availability

Author: Maria Toeroe

Publisher: John Wiley & Sons

Published: 2012-03-12

Total Pages: 472

ISBN-13: 1119941679

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Our society increasingly depends on computer-based systems; the number of applications deployed has increased dramatically in recent years and this trend is accelerating. Many of these applications are expected to provide their services continuously. The Service Availability Forum has recognized this need and developed a set of specifications to help software designers and developers to focus on the value added function of applications, leaving the availability management functions for the middleware. A practical and informative reference for the Service Availability Forum specifications, this book gives a cohesive explanation of the founding principles, motivation behind the design of the specifications, and the solutions, usage scenarios and limitations that a final system may have. Avoiding complex mathematical explanations, the book takes a pragmatic approach by discussing issues that are as close as possible to the daily software design/development by practitioners, and yet at a level that still takes in the overall picture. As a result, practitioners will be able to use the specifications as intended. Takes a practical approach, giving guidance on the use of the specifications to explain the architecture, redundancy models and dependencies of the Service Availability (SA) Forum services Explains how service availability provides fault tolerance at the service level Clarifies how the SA Forum solution is supported by open source implementations of the middleware Includes fragments of code, simple example and use cases to give readers a practical understanding of the topic Provides a stepping stone for applications and system designers, developers and advanced students to help them understand and use the specifications

Service Availability

Author: Miroslaw Malek

Publisher: Springer

Published: 2005-10-18

Total Pages: 220

ISBN-13: 3540320180

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This book constitutes the thoroughly refereed post-proceedings of the Second International Service Availability Symposium, ISAS 2005, held in Berlin, Germany in April 2005. The 15 revised full papers presented together with a keynote talk were carefully selected for inclusion in the book. The papers are organized in topical sections on data and computation availability, specifying, modeling and verifying service availability, high-availability by service-oriented architectures, modeling and composition, and verification and availability assessment.

Site Reliability Engineering

Author: Niall Richard Murphy

Publisher: "O'Reilly Media, Inc."

Published: 2016-03-23

Total Pages: 552

ISBN-13: 1491951176

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The overwhelming majority of a software system’s lifespan is spent in use, not in design or implementation. So, why does conventional wisdom insist that software engineers focus primarily on the design and development of large-scale computing systems? In this collection of essays and articles, key members of Google’s Site Reliability Team explain how and why their commitment to the entire lifecycle has enabled the company to successfully build, deploy, monitor, and maintain some of the largest software systems in the world. You’ll learn the principles and practices that enable Google engineers to make systems more scalable, reliable, and efficient—lessons directly applicable to your organization. This book is divided into four sections: Introduction—Learn what site reliability engineering is and why it differs from conventional IT industry practices Principles—Examine the patterns, behaviors, and areas of concern that influence the work of a site reliability engineer (SRE) Practices—Understand the theory and practice of an SRE’s day-to-day work: building and operating large distributed computing systems Management—Explore Google's best practices for training, communication, and meetings that your organization can use

Guide

Author: AICPA

Publisher: John Wiley & Sons

Published: 2018-05-11

Total Pages: 496

ISBN-13: 1945498609

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Updated as of January 1, 2018, this guide includes relevant guidance contained in applicable standards and other technical sources. It explains the relationship between a service organization and its user entities, provides examples of service organizations, describes the description criteria to be used to prepare the description of the service organization’s system, identifies the trust services criteria as the criteria to be used to evaluate the design and operating effectiveness of controls, explains the difference between a type 1 and type 2 SOC 2 report, and provides illustrative reports for CPAs engaged to examine and report on system and organization controls at a service organization. It also describes the matters to be considered and procedures to be performed by the service auditor in planning, performing, and reporting on SOC 2 and SOC 3 engagements. New to this edition are: Updated for SSAE No. 18 (clarified attestation standards), this guide has been fully conformed to reflect lessons learned in practice Contains insight from expert authors on the SOC 2 working group composed of CPAs who perform SOC 2 and SOC 3 engagements Includes illustrative report paragraphs describing the matter that gave rise to the report modification for a large variety of situations Includes a new appendix for performing and reporting on a SOC 2 examination in accordance with International Standards on Assurance Engagements (ISAEs) or in accordance with both the AICPA’s attestation standards and the ISAEs

Architecting for Scale

Author: Lee Atchison

Publisher: "O'Reilly Media, Inc."

Published: 2016-07-11

Total Pages: 230

ISBN-13: 1491943424

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Every day, companies struggle to scale critical applications. As traffic volume and data demands increase, these applications become more complicated and brittle, exposing risks and compromising availability. This practical guide shows IT, devops, and system reliability managers how to prevent an application from becoming slow, inconsistent, or downright unavailable as it grows. Scaling isn’t just about handling more users; it’s also about managing risk and ensuring availability. Author Lee Atchison provides basic techniques for building applications that can handle huge quantities of traffic, data, and demand without affecting the quality your customers expect. In five parts, this book explores: Availability: learn techniques for building highly available applications, and for tracking and improving availability going forward Risk management: identify, mitigate, and manage risks in your application, test your recovery/disaster plans, and build out systems that contain fewer risks Services and microservices: understand the value of services for building complicated applications that need to operate at higher scale Scaling applications: assign services to specific teams, label the criticalness of each service, and devise failure scenarios and recovery plans Cloud services: understand the structure of cloud-based services, resource allocation, and service distribution

Dependable Computing

Author: Marco Vieira

Publisher: Springer

Published: 2013-11-13

Total Pages: 216

ISBN-13: 3642387896

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This book constitutes the thoroughly refereed proceedings of the 14 the European Workshop on Dependable Computing, EWDC 2013, held in Coimbra, Portugal, in May 2013. The 9 full papers and 6 short papers presented were carefully reviewed and selected from 24 submissions. Also included in the volume are 6 fast abstracts presenting work in progress or new ideas in the dependability area. The papers are organized in topical sections on wireless sensor networks; cloud computing and services; testing and fault detection, fault injection and benchmarking and dependable and secure computing.

Implementing Service Level Objectives

Author: Alex Hidalgo

Publisher: O'Reilly Media

Published: 2020-08-05

Total Pages: 404

ISBN-13: 1492076783

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Although service-level objectives (SLOs) continue to grow in importance, there’s a distinct lack of information about how to implement them. Practical advice that does exist usually assumes that your team already has the infrastructure, tooling, and culture in place. In this book, recognized SLO expert Alex Hidalgo explains how to build an SLO culture from the ground up. Ideal as a primer and daily reference for anyone creating both the culture and tooling necessary for SLO-based approaches to reliability, this guide provides detailed analysis of advanced SLO and service-level indicator (SLI) techniques. Armed with mathematical models and statistical knowledge to help you get the most out of an SLO-based approach, you’ll learn how to build systems capable of measuring meaningful SLIs with buy-in across all departments of your organization. Define SLIs that meaningfully measure the reliability of a service from a user’s perspective Choose appropriate SLO targets, including how to perform statistical and probabilistic analysis Use error budgets to help your team have better discussions and make better data-driven decisions Build supportive tooling and resources required for an SLO-based approach Use SLO data to present meaningful reports to leadership and your users

Beyond Redundancy

Author: Eric Bauer

Publisher: John Wiley & Sons

Published: 2011-09-26

Total Pages: 330

ISBN-13: 9781118104934

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While geographic redundancy can obviously be a huge benefit for disaster recovery, it is far less obvious what benefit is feasible and likely for more typical non-catastrophic hardware, software, and human failures. Georedundancy and Service Availability provides both a theoretical and practical treatment of the feasible and likely benefits of geographic redundancy for both service availability and service reliability. The text provides network/system planners, IS/IT operations folks, system architects, system engineers, developers, testers, and other industry practitioners with a general discussion about the capital expense/operating expense tradeoff that frames system redundancy and georedundancy.