Recovery Metrics 3.1.1 Recovery Time Objective 3.1.2 Recovery Point Objective 3.1.3 RTO Versus RPO Reliability Metrics 3.2.1 Mean Time to Failure 3.2.2 Failure Rate 3.2.3 Mean Time to Recovery 3.2.4 Mean Time Between Failure 3.2.5 Reliability Availability Metrics Exposure Metrics Risk/Loss Metrics Cost Metrics Capacity Metrics 3.7.1 Utilization 3.7.2 Bandwidth 3.7.3 Overhead Performance Metrics 3.8.1 Latency 3.8.2 Response Time 3.8.3 Loss 3.8.4 Error 3.8.5 Throughput Summary and Conclusions ReferencesĬHAPTER 4 Network Topology and Protocol Considerations for Continuity 4.1 What Is Mission Critical? Purpose of the Book Network Continuity Versus Disaster Recovery The Case for Mission-Critical Planning Trends Affecting Continuity Planning Mission Goals and Objectives Organization of the Book Referencesįault Mechanics 2.1.1 Disruptions 2.1.2 Containment 2.1.3 Errors 2.1.4 Failover 2.1.5 Recovery 2.1.6 Contingency 2.1.7 Resumption 2.2 Principles of Redundancy 2.2.1 Single Points of Failure 2.2.2 Types of Redundancy 2.3 Principles of Tolerance 2.3.1 Fault Tolerance 2.3.2 Fault Resilience 2.3.3 High Availability 2.4 Principles of Design 2.4.1 Partitioning 2.4.2 Balanceĩ 9 10 11 11 12 13 13 14 14 14 16 20 21 22 22 22 23 23Ģ.4.3 Network Scale 2.4.4 Complexity 2.5 Summary and Conclusions References To Camille and Joseph-this is for them to remember me by.Ĭontents Foreword Preface Acknowledgments CHAPTER 1 Introduction 1.1 1.2 1.3 1.4 1.5 1.6 1.7 International Standard Book Number: 1-58053-516-X A Library of Congress Catalog Card number is available for this book. Use of a term in this book should not be regarded as affecting the validity of any trademark or service mark. Artech House cannot attest to the accuracy of this information. All terms mentioned in this book that are known to be trademarks or service marks have been appropriately capitalized.
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