Blackberry ENTERPRISE SOLUTION SECURITY - SECURITY FOR DEVICES WITH BLUETOOTH WIRELESS TECHNOLOGY - TECHNICAL Uživatelský manuál stáhnout pdf (Strana 63)

How a primary BlackBerry Enterprise Server demotes itself

After the primary BlackBerry® Enterprise Server receives a request to demote itself from a standby BlackBerry Enterprise Server,

the primary BlackBerry Enterprise Server performs the following actions:

• closes its SRP connection to the BlackBerry® Infrastructure

• stops the flow of all messages

• demotes its connections to the messaging server and BlackBerry Configuration Database to standby connections

• informs the standby BlackBerry Enterprise Server that it demoted itself

Scenario: What happens after a primary BlackBerry Enterprise Server stops

responding

If a primary BlackBerry® Enterprise Server stops responding, the response of the standby BlackBerry Enterprise Server depends

on whether its health score is above or below the promotion threshold.

The following responses assume that the messaging server, BlackBerry® Infrastructure, and BlackBerry Configuration Database

are available.

Response of the standby BlackBerry Enterprise Server when its health score is above the promotion threshold

1. The standby BlackBerry Enterprise Server determines that the primary BlackBerry Enterprise Server stopped responding.

2. The standby BlackBerry Enterprise Server checks its health score and determines that the health score is above the promotion

threshold.

3. The standby BlackBerry Enterprise Server opens active connections to the BlackBerry Configuration Database and

messaging server.

4. The standby BlackBerry Enterprise Server tries to open an SRP connection to the BlackBerry Infrastructure.

5. When the connection to the BlackBerry Infrastructure is stable, the standby BlackBerry Enterprise Server writes its identity

as the primary BlackBerry Enterprise Server to the BlackBerry Configuration Database.

Response of the standby BlackBerry Enterprise Server when its health score is below the promotion threshold

1. The standby BlackBerry Enterprise Server determines that the primary BlackBerry Enterprise Server stopped responding.

2. The standby BlackBerry Enterprise Server checks its health score and determines that the health score is below the promotion

threshold.

The standby BlackBerry Enterprise Server cannot become the primary instance. You must resolve any issues before the

BlackBerry Enterprise Server can recover.

Feature and Technical Overview

How a primary BlackBerry Enterprise Server demotes itself

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Blackberry ENTERPRISE SOLUTION SECURITY - SECURITY FOR DEVICES WITH BLUETOOTH WIRELESS TECHNOLOGY - TECHNICAL Uživatelský manuál Strana 63