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

What is Peer-to-Peer Replication?

Peer-to-Peer Replication type was introduced with the launch of SQL Server 2005, and is the most promising solution when the ultimate goal is to achieve data redundancy and load balancing. Peer-to-Peer Replication is built on top of the Transactional Replication type, where every participant node has a copy of the data, which results in the redundancy of data and ensures that we have high availability. Ultimately, we have achieved a higher response time while reading data from server, along with the high availability of data.

At the same time, we will also get the benefit of load balancing using the Peer-to-Peer Replication type. While configuring P2P replication, we can authorize or allocate the objects between participant nodes to achieve load balancing.

With P2P replications, we can be assured that if one node fails, P2P Replication is still able to work. This is because any of the participant nodes can act as a Publisher, and hence there is no single...