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What's New in SQL Server 2012 by Jon Reade, Rachel Clements

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Chapter 8. AlwaysOn

SQL Server 2012 has a multitude of new administrative features. Some of these features, such as AlwaysOn, could have an entire book devoted solely to them. We are not going to go through a full tutorial here, but instead we will take a look at the basics, while throwing in a few tips to give you a flavor of what AlwaysOn involves.

It should be noted that AlwaysOn is very much a marketing term, which simply encompasses availability groups and clustering. It seems to be a common misconception that availability groups have replaced SQL Server mirroring, but they have not. If you don't need availability groups, nor wish to introduce the complexity of clusters into your environment, mirroring is still available to you, just as it ...

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