I have 2 replicas running SQL Server 2016 Enterprise Edition in an AlwaysOn Availability Group.
One replica is primary and other replica is secondary and readable.
I have a business requirement that should allow one database replica to be taken offline and back online after a period of a few minutes by a custom developed APM monitor.
The database replica to be taken offline can be primary or secondary.
The database replica has to be take offline and online via transact SQL
When the database replica is offline it should not be possible for it to execute requests. All existing connections must be moved to the other database replica or fail, so that the client can reconnect using the IP listener to the other replica.
The suspend & manual failover only works on secondary database replicas.
The suspend allows existing connections to execute requests.
The manual failover just switches the primary to secondary role and vice versa.
How do I do this ?