Installation guide

Upgrading the BlackBerry Enterprise Server software in
phases
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Using the phased upgrade process, you can maintain previous versions of the BlackBerry® Enterprise Server software, install
additional BlackBerry Enterprise Server instances over time, and move user accounts to the latest BlackBerry Enterprise Server
versions.
When you use the in-place upgrade process, all BlackBerry devices receive new IT policies. BlackBerry devices that are running
BlackBerry® Device Software version 4.0 or later receive new service books and wireless data synchronization occurs.
Advantages of this upgrade process include:
• You can move user accounts to the new BlackBerry Enterprise Server instances gradually to limit the number of service
books and IT policies that the BlackBerry Policy Service sends to BlackBerry devices at the same time.
• You can monitor system performance as you add user accounts.
• You can change your organization's environment during the upgrade process by changing which user accounts you associate
with each BlackBerry Enterprise Server instance.
Disadvantages of this upgrade process include:
• You require extra computers.
• You require additional SRP credentials.
• If you move user accounts from one BlackBerry Configuration Database to another, you lose the BlackBerry device options
that you backed up in the BlackBerry Configuration Database.
• You cannot use some new features (for example, one-to-many relationships between a BlackBerry MDS Connection Service
or BlackBerry Collaboration Service and multiple BlackBerry Enterprise Server instances) in the BlackBerry Enterprise Server
until all BlackBerry Enterprise Server components are the same version.
Upgrade multiple BlackBerry Enterprise Server instances in phases
You can upgrade the BlackBerry® Enterprise Server instances in your organization's environment in phases to minimize the
impact on users.
Before you begin: If you want to create a new BlackBerry Configuration Database, instruct users to back up their BlackBerry
devices. Any BlackBerry device options that are stored in the existing BlackBerry Configuration Database are deleted when you
add user accounts to the new BlackBerry Configuration Database.
1. Install the latest BlackBerry Enterprise Server version with the BlackBerry Administration Service on a separate computer.
2. If you create a new BlackBerry Configuration Database, create roles, administrator accounts, groups, IT policies, and software
configurations for your organization's environment.
3. If you upgrade an existing BlackBerry Configuration Database, remove BlackBerry Manager instances from your
organization's environment.
Upgrade Guide
Upgrading the BlackBerry Enterprise Server software in phases
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