August 2012
Intermediate to advanced
1416 pages
33h 39m
English
book
Microsoft SQL Server 2012 Bible
by Adam Jorgensen, Jorge Segarra, Patrick LeBlanc, Jose Chinchilla, Aaron Nelson
Content preview from Microsoft SQL Server 2012 Bible
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Chapter 29
Clustering
In This Chapter
Understanding High Availability vs. Scale Out
Understanding Clustering
Installing SQL Server 2012 as a Clustered Instance
Testing Failover on a Clustered Instance of SQL Server 2012
Databases are the backbone of almost every type of business application, whether it is an e-commerce website, loan processing system, or a patient monitoring application. Almost all mission-critical business processes such as sales, shipment, and supply chain management rely on database systems. A disruption in any of these processes affects an organization's capability to generate revenue, remain productive, and maintain customer satisfaction. For this reason businesses require that databases are always up and running. High availability of database systems can be achieved by a well-designed solution that includes SQL Server failover clustering.
What's New with Clustering in SQL 2012
SQL Server Failover Clustering is now considered as part of the SQL Server 2012 AlwaysOn implementation suite. Enhancements were made to the multi-site failover clustering technology:
- Automatic detection of multi-subnet environment.
- Automatic setting of IP address resource dependency to OR.
- SQL Server Engine startup logic skips binding to any IP address that is not in an online state, when bringing the SQL Server resource online.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.