Tài liệu Pro SQL Server Disaster Recovery docx

this print for content only—size & color not accurate 7" x 9-1/4" / CASEBOUND / MALLOY (0.9375 INCH BULK 368 pages 60# Thor) The eXPeRT’s VOIce ® In sQL seRVeR James Luetkehoelter Pro SQL Server Disaster Recovery The art and science of protecting your corporate data against unforeseen circumstances—the #1 job of a database administrator BOOks fOR PROfessIOnaLs By PROfessIOnaLs ® Pro SQL Server Disaster Recovery Dear Reader, As a SQL Server database administrator, do you know what your #1 job is? Many would argue that your single, most important job is to be able to recover your database in the event of loss or damage. Notice those words: to be able to. Your typical day is likely consumed by pressing problems and tasks that are far removed from disaster recovery. But what if a tornado strikes your data center and scatters your equipment over half the city? What if your chief accountant inadvertently closes the books mid-month? What happens when you find your- self with an ice-cold feeling in your veins and the realization that your job, and perhaps your career, hinge upon your answer to the question, “Can you recover?” Part of disaster recovery planning is to recognize the different types of disas- ters that can occur. We can dream up 10,000 different scenarios, but this book will show how they can all be boiled down to a small number of manageable categories. You’ll also learn how to think about risk and about the cost trade-offs involved in different levels of protection. You’ll learn about the human element in disaster recovery—and yes, there is a human element to consider in any disaster planning project. Finally, you’ll learn about the different SQL Server features that you can put to use in mitigating data loss when disaster strikes. Believe me, SQL Server has much more to offer than just the standard backup and recovery functionality. Disaster recovery planning is really about sleep. That’s why I wrote this book—to help you sleep at night without worrying about what might go wrong. When you get a call at 3 a.m. telling you that your database is lost, you won’t have that icy feeling in your veins. Instead, you’ll be confident that you have a plan in place—a plan that you’ve practiced, that management has bought into, and that you can execute even while half asleep to get your database, your com- pany, and your job back on track. Sleep well! James Luetkehoelter THE APRESS ROADMAP Pro SQL Server 2005 High Availability Pro SQL Server Disaster Recovery Pro SQL Server 2005 Beginning SQL Server 2005 for Developers SQL Server Disaster Recovery Luetkehoelter cyan MaGenTa yeLLOW BLack PanTOne 123 c ISBN-13: 978-1-59059-967-9 ISBN-10: 1-59059-967-5 9 781590 599679 9 0 0 0 0 Shelve in Databases/SQL Server User level: Intermediate–Advanced www.apress.com Companion eBook See last page for details on $10 eBook version Companion eBook Available Pro [...]... the backup /recovery process, various disaster mitigation techniques, and practical tips for approaching disaster recovery within your own environment The backup /recovery process is a necessary component to any disaster recovery plan Disaster mitigation techniques, such as database mirroring, are powerful yet optional Determining how backup /recovery and mitigation play in to your own disaster recovery. .. I’ll establish what disaster recovery means for the purposes of this book To accomplish this successfully, I’ll discuss • Disaster recovery from a procedural perspective • How disaster recovery relates to similar terminology—specifically, business continuity and high availability • Exactly what is considered a disaster • Disaster recovery from a technical perspective Defining Disaster Recovery Working... technology is the key to being successful as a technology professional Thus, I will endeavor to present you with less how and more what in this book In the coming pages, I’ll present you with my concept of what disaster recovery is, the tools available to SQL Server to deal with disaster recovery, and my process for disaster recovery planning and dealing with disaster scenarios This book is heavy on my point... either by choice or by necessity, understanding disaster recovery should be at the top of your to-do list The problem is that disaster recovery is often either seen as a complicated, expensive process or it is minimized to the role of a basic backup /recovery plan If disaster recovery isn’t a part of your ongoing job as a process requiring continual improvement, read this book If you lose sleep worrying... potential problems with those who are experts xxiii 9675fmfinal.qxd xxiv 2/21/08 1:48 PM Page xxiv sINTRODUCTION Chapter 11 discusses how to approach disaster recovery planning This completely nontechnical chapter discusses how to combine backup /recovery planning with disaster mitigation techniques to prepare a thorough disaster recovery plan This chapter includes sample disaster scenarios and potential approaches... migration • Disaster recovery: The process of mitigating the likelihood of a disaster and the process of returning the system to a normal state in the event of a disaster Figure 1-1 shows the relationship between the three terms Figure 1-1 The relationship between business continuity, high availability, and disaster recovery 3 9675ch01final.qxd 4 2/21/08 1:49 PM Page 4 CHAPTER 1 s WHAT IS DISASTER RECOVERY? ... and returning the system to a functioning state Simply put, disaster recovery is mitigation and response SQL Server has long had technologies in place to handle mitigation and response SQL Server 2005 includes new technologies and improvements that have completely changed the way we should think about disaster recovery Having a backup and recovery plan can and should be augmented by other techniques... the example scenarios Disaster Recovery from a Technical Perspective Up to this point, I’ve been approaching the question of disaster recovery from an abstract, procedural level While it’s important to think about the subject in an abstract way, this is a technical book I established that, for the purposes of this book, disaster recovery encompasses reducing the likelihood of the disaster and returning... Reviewer sSTEVE JONES is a founder and editor of SQLServerCentral.com, one of the largest SQL Server communities on the Internet He writes regular articles and a daily editorial in addition to answering questions from people on all aspects of SQL Server Steve is a Microsoft MVP lives near Denver, and regularly attends the Professional Association for , SQL Server (PASS) Community Summit as well as local... your job Chapter 1 introduces my interpretation of disaster recovery Although short, this chapter is extremely important, because it spells out the premises I work with throughout the rest of the book Disaster recovery is not simply a backup/restore process, it is not simply high-availability techniques, and it is not a project to be completed Disaster recovery is a daily job duty of a database administrator . ROADMAP Pro SQL Server 2005 High Availability Pro SQL Server Disaster Recovery Pro SQL Server 2005 Beginning SQL Server 2005 for Developers SQL Server Disaster. Available Pro