Blueprints for High Availability 2e

Marcus, a software engineer, and Stern, a reliability expert, point out how each of the elements of a computer system can fail and explain how to assess their reliability and attain resiliency and high availability. They offer advice on designing a system to limit the impact of problems such as computer viruses, natural disasters, and the corruption of critical files. This second edition includes more real-life experiences that will help readers avoid common mistakes, and a rewritten chapter on disaster recovery, incorporating lessons learned from 9/11

expert Techniques For Designing Your System To Achieve Maximum Availability And Predictable Downtime

with Your Company’s Reputation And Profits At Stake, Downtime On Your 24/7 Web Site Is Not An Option, Nor Is Poor Application Performance. Now In Its Second Edition, This Authoritative Book Provides You With The Design Blueprints To Maximize Your System Availability.

striking A Balance Between Costs And Benefits, The Authors Show You All Of The Elements Of Your Computer System That Can Fail–as Well As Ways To Assess Their Reliability And Attain Resiliency And High Availability For Each One. A Unique Feature Is "tales From The Field," A Collection Of True-to-life Experiences That Will Help You Avoid Mistakes And Deploy Your System With Confidence.

learn How To Design Your System To Limit The Impact Of Such Problems As Computer Viruses, Natural Disasters, Or The Corruption Of Critical Files And Discover How To:

• implement Effective Backup-and-restore And Tape Management Strategies
• arrange Disks And Disk Arrays To Avoid Downtime Caused By Inevitable Failures
• utilize Technologies Such As Storage Area Networks (sans), Network Attached Storage (nas), Virtualization, And Clustering
• achieve Effective Application Recovery After Any Part Of The System Has Failed
• replicate Critical Data To Remote Systems Across A Network

Expert techniques for designing your system to achieve maximum availability and predictable downtime With your company's reputation and profits at stake, downtime on your 24/7 web site is not an option, nor is poor application performance. Now in its second edition, this authoritative book provides you with the design blueprints to maximize your system availability. Striking a balance between costs and benefits, the authors show you all of the elements of your computer system that can fail-as well as ways to assess their reliability and attain resiliency and high availability for each one. A unique feature is "Tales from the Field," a collection of true-to-life experiences that will help you avoid mistakes and deploy your system with confidence. Learn how to design your system to limit the impact of such problems as computer viruses, natural disasters, or the corruption of critical files and discover how to: Implement effective backup-and-restore and tape management strategies Arrange disks and disk arrays to avoid downtime caused by inevitable failures Utilize technologies such as Storage Area Networks (SANs), Network Attached Storage (NAS), Virtualization, and clustering Achieve effective application recovery after any part of the system has failed Replicate critical data to remote systems across a network Blueprints for High Availability......Page 2 Copyright......Page 4 Contents......Page 6 Preface......Page 18 About the Authors......Page 30 1. Introduction......Page 32 2. What to Measure......Page 40 3. The Value of Availability......Page 62 4. The Politics of Availability......Page 92 5. 20 Key High Availability Design Principles......Page 106 6. Backups and Restores......Page 136 7. Highly Available Data Management......Page 180 8. SAN, NAS, and Virtualization......Page 214 9. Networking......Page 234 10. Data Centers and the Local Environment......Page 272 11. People and Processes......Page 294 12. Clients and Consumers......Page 322 13. Application Design......Page 334 14. Data and Web Services......Page 364 15. Local Clustering and Failover......Page 392 16. Failover Management and Issues......Page 418 17. Failover Configurations......Page 446 18. Data Replication......Page 464 19. Virtual Machines and Resource Management......Page 496 20. The Disaster Recovery Plan......Page 504 21. A Resilient Enterprise*......Page 544 22. A Brief Look Ahead......Page 572 23. Parting Shots......Page 586 Index......Page 590