Pro SQL Server 2012 Practices

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CHAPTER 16 Backups and Restores Using Availability Groups

by Grant Fritchey

With the release of Microsoft SQL Server 2012, a whole new mechanism for ensuring continuous availability of databases in your system was introduced: AlwaysOn Availability Groups. Availability Groups provide a mechanism for failing over a database, or a group of databases, from a primary replica onto between one and four secondary replicas. This ability to keep a database online with little to no data loss and without the requirements of the old Failover Cluster shared disks and matching hardware makes for a great way to help ensure the continuity of access to data in ...

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