How many databases can be configured in an AlwaysOn availability?

How many databases can you have in an availability group?

There is as such no limit defined. Microsoft has tested only upto 10 AG and 100 Databases. If you want to create more AGS, You will have to do so and test the workload you have to see that you do not land into performance issues for same.

How many databases can an instance have?

SQL Server Utility objectMaximum values for SQL Server (64-bit)User databases per SQL Server instance, including data-tier applications50Total number of user databases per SQL Server Utility1,000File groups per database1Data files per file group1

What is the maximum number of secondary databases configuration allowed in AlwaysOn for a single database?

Each availability group supports one primary replica and up to eight secondary replicas. For more information, see Overview of Always On Availability Groups (SQL Server).

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.