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Managing a mixed-version environment
If your organization installed multiple BlackBerry® Enterprise Server instances in a BlackBerry Domain, you can choose
to upgrade each BlackBerry Enterprise Server instance over time. If you installed the BlackBerry MDS Integration
Service on any BlackBerry Enterprise Server instances in a BlackBerry Domain, you must remove the BlackBerry MDS
Integration Service component from all BlackBerry Enterprise Server instances before you upgrade to the latest
BlackBerry Enterprise Server version.
After you upgrade the BlackBerry Configuration Database, you must manage all BlackBerry Enterprise Server
instances using the BlackBerry Administration Service version that is the same as the BlackBerry Configuration
Database version. When you manage BlackBerry Enterprise Server 4.1 SP7 or later using the BlackBerry
Administration Service, consider the following information:
• You cannot install previous versions of the BlackBerry Enterprise Server.
• You can create user accounts only after you install the latest BlackBerry Enterprise Server version and a
BlackBerry Administration Service. To create user accounts, the BlackBerry Administration Service requires the
BlackBerry Mail Store Service. The setup application installs the BlackBerry Mail Store Service automatically with
the latest BlackBerry Enterprise Server version.
Best practice: Preparing to upgrade the BlackBerry
Enterprise Server
Best practice Description
Document the BlackBerry®
Enterprise Server environment.
Consider documenting the following items:
• topology
• user accounts, administrator accounts, groups, and roles
• IT policies and application control policies
• software configurations and applications
• addresses for proxy servers, content servers, and application servers
• email message filters
• email message classifications, signatures, and disclaimers
• settings for organizer data synchronization
• attachment file formats specific to your organization
• settings for instant messaging
• access restrictions to your organization's applications and web servers
Configure a test environment. Consider building a test environment to test the latest BlackBerry Enterprise
Server version and upgrade process that applies to your organization's
environment.
Analyze your organization's
environment to determine an
upgrade strategy. Each
Consider the following questions:
Upgrade Planning Guide
Managing a mixed-version environment
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