What is database level health detection in an availability group?

What is database level health detection in an availability group?

The database level health detection notices when a database is no longer in the online status, when something goes wrong, and will trigger the automatic failover of the availability group.

What is per database DTC support?

DTC is a service available on supported Windows Server-based operating systems. For a distributed transaction, DTC is the transaction coordinator. Normally, a SQL Server instance is the resource manager. When a database is in an availability group, each database needs to be its own resource manager.

What is the health of the availability group?

Reflects a rollup of the synchronization_health of all availability replicas in the availability group. Below are the possible values and their descriptions. 0: Not healthy. None of the availability replicas have a healthy synchronization_health (2 = HEALTHY).

Where do I find the availability group in SQL Server?

On top of the dashboard, you can see the availability group’s state, primary instance, its failover mode, cluster state, and its type. In the Availability replica section, you can see the instance names of the participating replicas, their roles, availability modes, failover modes, and synchronization states.

How to monitor the health of the AlwaysOn availability group?

To monitor the health of an availability group, you can use the Monitoring Dashboard. To launch the dashboard, right-click the Availability Groups folder and select “ Show Dashboard. ” See the following image: The AlwaysOn availability group monitoring dashboard will be opened in a new tab.

Are there any availability replicas that are healthy?

None of the availability replicas have a healthy synchronization_health (2 = HEALTHY). 1: Partially healthy. The synchronization health of some, but not all, availability replicas is healthy.