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Professional SQL Server 2008 Internals and Troubleshooting ReviewBrief Review: Having a book on internal and associating that with real life is "almost" an impossible task. The reason for using the word "almost" is because this book has accomplished this very well. This internals book is written by keeping real life scenarios as top focus. The highlight of the book is that it teaches how to use internals to troubleshoot the real life issues of performance, storage, query processing and all the other important aspects of SQL Server - A must-have book for everybody who is a hands-on DBA/Developer.
Detail Review: I planned to finish reading this book within a week. Very soon, I realized that I was going over very interesting subjects of SQL Server very quickly and understanding them very well. In fact, I finished reading this book in less than a week, and I have to accept that it offers an interesting journey for its readers. This book is also quite easy to read. This book has addressed some of the complex subjects in such a simple manner that any SQL user can understand it very easily.
The three very important components for any server are CPU, Memory and IO. This book effectively elucidates these three components. The topics usually begin by covering internals which shift to practical implementations after proper amount of internals. In other way, I can say that this book is NOT a usual boring book, which can put you to sleep. Each chapter keeps you interested till the end of it. CPU and IO, which are very important deciding factors for Query cost, are very well explained in the book. This book explains how any query can be understood in terms of internals. After explaining the query internals in terms of CPU and IO, it also explains how the physical memory affects query execution and what are the techniques to improve performance?
This book gives an in-depth explanation of Wait Types and Extended Events. I must admit that I was quite scared of Wait Types and Extended Events thus far and learned how "friendly" they can be after reading this book. In fact, I can really see that how I can use these concepts in my real life scenarios and help my servers to run better and efficiently. This book also covers some topics which do not have much available help online, i.e. SQLDiag, RML Utilities, etc. One who is new to these subjects can easily learn from the basics and soon can move to an advanced level. Again, as mentioned earlier, this book is written by taking the real world into consideration and all these subjects follow the same goal.
In fact, I liked the entire book. However, the chapters which I really enjoyed the most are Chapter 3: SQL Server Waits and Extended Events by Jonathan Kehayias; Chapter 4: Working with Storage by Brent Ozar; and Chapter 5: CPU and Query Processing by Steven Wort. Each chapter is independent of the other chapters; this way, the reader can practically start reading any chapter from anywhere and explore the book according to his/her convenience.
Databases are required because there is a large amount of data available, and keeping the data safe, secure and available is the MOST important task of any database system. The fourth chapter on Storage by Brent covers this important basic concept very thoroughly. The most impressive part of Chapter 4 is that it explains how storage works in real time. While taking about storage, Brent manages to effectively explain the concepts of High Availability and Disaster Recovery as well. Maintenance of storage has always been a challenge, and also there has been a lack of understanding on storage devices and techniques available. This chapter answers few very basic but important questions like when should SAN be used for data storage, and what is its effect on performance? This chapter also explains RAID setup; however, please note that it focuses on "practical internals." After setting up good storage, it is equally important to test it; this chapter continues discussing different tools and methodologies for testing storage. This chapter also covers Windows Server Configuration as well as tuning of software by means of storage devices. Corruption can be significant problem in case of a large database; this chapter also covers the proper usage of DBCC CHECKDB and its best practices.
There is no doubt that this book is written by experts who have extensive experience in the subject, which is covered in different chapters. Solid and thorough content, plenty of code, easy-to-understand diagrams, lots of tips along with each topic and simple language are the key highlights of this book.
Rating: 5 Stars
Summary: There is no doubt that this book is by far one of the best books available for anybody who is interested in SQL Server Internals and applying its knowledge to real world troubleshooting scenarios. I think this is one of the must-have books for understanding SQL Server, and believe me, you will find yourself flipping the pages of the book when you are facing a trouble with the SQL Server instead of using search engine!
Professional SQL Server 2008 Internals and Troubleshooting OverviewA hands-on resource for SQL Server 2008 troubleshooting methods and tools
SQL Server administrators need to ensure that SQL Server remains running 24/7. Authored by leading SQL Server experts and MVPs, this book provides in-depth coverage of best practices based on a deep understanding of the internals of both SQL Server and the Windows operating system.
You'll get a thorough look at the SQL Server database architecture and internals as well as Windows OS internals so that you can approach troubleshooting with a solid grasp of the total processing environment. Armed with this comprehensive understanding, readers will then learn how to use a suite of tools for troubleshooting performance problems whether they originate on the database server or operating system side.
Topics Covered:
SQL Server Architecture
Understanding Memory
SQL Server Waits and Extended Events
Working with Storage
CPU and Query Processing
Locking and Latches
Knowing Tempdb
Defining Your Approach To Troubleshooting
Viewing Server Performance with PerfMon and the PAL Tool
Tracing SQL Server with SQL Trace and Profiler
Consolidating Data Collection with SQLDiag and the PerfStats Script
Introducing RML Utilities for Stress Testing and Trace File Analysis
Bringing It All Together with SQL Nexus
Using Management Studio Reports and the Performance Dashboard
Using SQL Server Management Data Warehouse
Shortcuts to Efficient Data Collection and Quick Analysis
Note: CD-ROM/DVD and other supplementary materials are not included as part of eBook file.
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