Book Image

Microsoft SQL Server 2008 High Availability

By : Hemantgiri S. Goswami
Book Image

Microsoft SQL Server 2008 High Availability

By: Hemantgiri S. Goswami

Overview of this book

<p>Every business has it's mission critical applications and data. Therefore, it is very important to keep database servers up and running all the time – 24 X 7. There is a need to store and process terabytes of data to cater for business needs, and it is vital to make data highly available.<br /><br />High availability is all about the site being accessible all the time. High availability solutions minimize the downtime for these mission critical applications.</p> <p>Microsoft SQL Server is a powerful relational database engine, widely used to store and maintain data in Enterprises of various levels be they small, medium or large.</p> <p>This book will teach you how best to use these readily-available options and save you time in making your websites highly available.<br /><br />This Microsoft SQL Server 2008 High Availability book will take you through pre and post installation concepts and common issues you come across while working with SQL Server HA. It will teach you how these various HA solutions can be installed using GUI and the command line. It will also show you how to troubleshoot common issues you may encounter whilst installing or managing the HA option in your environment. It provides references to external links for more advanced learning on the topic.<br /><br />This book starts with an introductory chapter into the windows domain, domain users and various handshake methods available with Windows server. It also offers information the different authentication methods available with SQL Server - giving you an insight into the importance of security. After you are through with the security aspects, your journey to installing SQL Server HA will start. It will cover the concepts of database mirroring, log shipping, clustering, and replication.<br /><br />By the end of this book you will be confident enough to take up the challenge to install any of the SQL Server HA options.</p>
Table of Contents (18 chapters)
Microsoft SQL Server 2008 High Availability
About the Author
About the Reviewers

Prerequisites for Transactional Replication

Just like Snapshot Replication, Transactional Replication too has some prerequisites to follow before we install and configure it. Let's have a look at the prerequisites for Transactional Replication.

  • Primary Key: This is a basic rule that every article should have a Primary Key to be a candidate table for Transactional Replication.

    Primary keys are used to maintain uniqueness of records and to maintain referential integrity between tables, and that is why it is recommended for every article to have a primary key.

  • Securing snapshot folder: This is about securing and accessing snapshot folder (please refer to the prerequisite section of Chapter 3, Snapshot Replication, for more details).

  • Schedule: This is about scheduling the agent and jobs (please refer to the prerequisite section of Chapter 3 for more details).

  • Network bandwidth: This talks about network bandwidth, which again has been discussed in the prerequisites section of Chapter 3.

  • Enough disk...