What is always on availability groups?
Correspondingly, what is AlwaysOn Availability Groups in SQL Server?
AlwaysOn Availability Groups is a database mirroring technique for Microsoft SQL Server that allows administrators to pull together a group of user databases that can fail over together. Traditional database mirroring in SQL Server was only for a single database.
Secondly, how many AlwaysOn availability groups can be configured in always on? You can have more than one AlwaysOn Availability Group on your instance, but databases cannot belong to more than one group.
Likewise, how do I enable Always On Availability Groups?
In SQL Server Configuration Manager, click SQL Server Services, right-click SQL Server (<instance name>), where <instance name> is the name of a local server instance for which you want to enable Always On Availability Groups, and click Properties. Select the Always On High Availability tab.
What is SQL always on?
SQL Server AlwaysOn provides a high-availability and Disaster-recovery solution for SQL Server 2012. It makes use of existing SQL Server features, particularly Failover Clustering, and provides new capabilities such as availability groups. It aims to provide more granular control to achieve High Availability.