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SQL Server AlwaysOn

SQL Server AlwaysOn is the new comprehensive high availability and disaster recovery solution in SQL Server 2012. Using AlwaysOn, you can increase application availability and get a better return on your hardware investments through a simplified high availability (HA) deployment and management experience.

 

See: FAQ | Features in SQL Server 2012

 

SQL Server AlwaysOn provides availability at either the application database or instance level. Learn more about how to use AlwaysOn to maintain availability at each of these levels.

 

What is AlwaysOn

 

Database AvailabilityInstance Availability
AlwaysOn Availability Groups AlwaysOn Failover Cluster Instances

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