Blackberry blackberry enterprise server for microsoft exchange - page 64

Component High availability type Description
assigns the active connection to another BlackBerry
Collaboration Service instance.
BlackBerry Configuration
Database database mirroring If you install the BlackBerry Configuration Database on Microsoft SQL Server 2005 SP2 or later, you can configure
database mirroring. If the principal BlackBerry
Configuration Database stops responding, the BlackBerry
Enterprise Server fails over to the mirror BlackBerry
Configuration Database.
BlackBerry MDS Connection
Service failover with an active connection to one instance
and standby connections to
other instances
When you install two or more BlackBerry MDS Connection
Service instances, you can create a BlackBerry MDS
Connection Service pool for each BlackBerry Enterprise
Server instance. Each BlackBerry Enterprise Server assigns
one of the connections to the BlackBerry MDS Connection
Service instances as the active connection, and the other
connections as standby connections. If the BlackBerry MDS
Connection Service that the active connection is assigned
to stops responding, the BlackBerry Enterprise Server
assigns the active connection to another BlackBerry MDS
Connection Service instance.
BlackBerry Router failover When you install two or more BlackBerry Router instances,
you can create a BlackBerry Router pool for each
BlackBerry Enterprise Server or BlackBerry Enterprise
Server pair. If a BlackBerry Router stops responding, the
BlackBerry Enterprise Server selects another instance
using information that is stored in the BlackBerry
Configuration Database.
Feature and Technical Overview BlackBerry Enterprise Server high availability
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