Configuration of a Server Instance for AlwaysOn Availability Groups (SQL Server)
This topic contains information about the requirements for configuring an instance of SQL Server to support in SQL Server 2012.
For essential information about AlwaysOn Availability Groups prerequisites and restrictions for Windows Server Failover Clustering (WSFC) nodes and for instances of SQL Server, see Prerequisites, Restrictions, and Recommendations for AlwaysOn Availability Groups (SQL Server).
In this Topic:
To support AlwaysOn Availability Groups, a server instance must reside on a node in the WSFC failover cluster that hosts the availability group, be AlwaysOn Availability Groups enabled, and possess a database mirroring endpoint.
Enable the AlwaysOn Availability Groups feature on every server instance that is to participate in one or more availability groups. A given server instance can host only a single availability replica for a given availability group.
Ensure that the server instance possesses a database mirroring endpoint.
To enable AlwaysOn Availability Groups
To determine whether a database mirroring endpoint exists
To create a database mirroring endpoint