Scenario: What happens after the health score of a primary BlackBerry Enterprise Server falls below the failover threshold

The following scenario assumes that the messaging server, BlackBerry® Infrastructure, and BlackBerry Configuration Database are available.

  1. The standby BlackBerry® Enterprise Server determines that the health score of the primary BlackBerry Enterprise Server fell below the failover threshold.
  2. The standby BlackBerry Enterprise Server checks its health score and determines that its health score is above the promotion threshold and higher than the health score of the primary BlackBerry Enterprise Server.
  3. The standby BlackBerry Enterprise Server sends a demotion request to the pimary BlackBerry Enterprise Server.
  4. The primary BlackBerry Enterprise Server demotes itself.
  5. The standby BlackBerry Enterprise Server opens active connections to the BlackBerry Configuration Database and messaging server.
  6. The standby BlackBerry Enterprise Server tries to open an SRP connection to the BlackBerry Infrastructure.
  7. The standby BlackBerry Enterprise Server writes its identity as the primary BlackBerry Enterprise Server to the BlackBerry Configuration Database.

Index


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