Scenario: What happens after the principal BlackBerry Configuration Database stops responding
If a principal BlackBerry® Configuration Database stops responding, the response of the primary BlackBerry® Enterprise Server depends on whether it can connect to the mirror BlackBerry Configuration Database.
The following responses assume that the messaging server and BlackBerry® Infrastructure are available.
Response of a primary BlackBerry Enterprise Server that can connect to the mirror BlackBerry Configuration Database
Response of a primary BlackBerry Enterprise Server that cannot connect to the mirror BlackBerry Configuration Database
- The primary BlackBerry Enterprise Server loses its connection to the principal BlackBerry Configuration Database.
- The primary BlackBerry Enterprise Server tries to connect to the mirror BlackBerry Configuration Database, but is unsuccessful.
- The primary BlackBerry Enterprise Server lowers its health score and continues to provide limited services.
One of the following events occurs:
- If the standby BlackBerry Enterprise Server can open a connection to the principal or mirror BlackBerry Configuration Database, it demotes the primary BlackBerry Enterprise Server and promotes itself to become the primary instance.
- If the standby BlackBerry Enterprise Server cannot open a connection to the principal or mirror BlackBerry Configuration Database, it cannot promote itself. You must resolve any issues before the BlackBerry Enterprise Server pair can recover.
Parent topic: BlackBerry Configuration Database high availability