2.6.2 Monitoring after failover in the SQL Server AlwaysOn Availability Group configuration
After failover is complete, the primary database switches to host B, and the secondary database switches to host A.
After the failover, the PFM - RM for Microsoft SQL Server instance with the database that has switched to the secondary database collects the information for databases other than the secondary database. However, if all connections to the secondary database are permitted, the information for the secondary database can be also collected.
Also, the PFM - RM for Microsoft SQL Server instance with the database that switched to the primary database collects the information for the primary database and the databases that are not in the SQL Server AlwaysOn Availability Group configuration.