Blackberry blackberry enterprise server manual Upgrading a BlackBerry Domain

Upgrade Planning Guide	Upgrading a BlackBerry Domain
Upgrading a BlackBerry Domain
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If you upgrade a BlackBerry® Enterprise Server environment that includes more than one BlackBerry Enterprise Server instance, you can choose from a variety of upgrade processes, depending on the existing architecture of the BlackBerry Domain and how you expect the architecture to change as you add BlackBerry device users, install additional BlackBerry Enterprise Server components and instances, and configure new features.

You can consider the following infrastructure variations as you plan the upgrade process for your organization's environment.

Variation	Description
MSDE or Microsoft® SQL Server®	If your organization's environment includes MSDE, you must upgrade to a
used to host the BlackBerry	later version of Microsoft SQL Server.
Configuration Database	You can upgrade to Microsoft SQL Server Express if your organization's
	environment does not include many BlackBerry device users and you do not
	plan to add any more.
	You can upgrade to Microsoft SQL Server if you expect the number of
	BlackBerry device users to increase to more than 500.
	You can upgrade the database server that hosts the BlackBerry
	Configuration Database before you upgrade the BlackBerry Enterprise
	Server.
BlackBerry Configuration Database	If you expect the number of BlackBerry device users to increase, you might
installed locally or on a separate	want to install the BlackBerry Configuration Database on its own computer.
computer	When you install the BlackBerry Configuration Database on its own
	computer, you increase the system resources that are available to the
	BlackBerry Configuration Database and BlackBerry Enterprise Server, and
	make it easier to configure features such as high availability.
network proximity of the BlackBerry	If you configure the BlackBerry Enterprise Server, BlackBerry Configuration
Enterprise Server, BlackBerry	Database, messaging servers, and other third-party systems on separate
Configuration Database, messaging	LANs connected by a WAN, the upgrade process takes longer to complete.
servers, and other third-party
systems

Planning to upgrade the BlackBerry Domain when your organization's infrastructure is in one location

If you previously installed the BlackBerry® Enterprise Server instances, BlackBerry Configuration Database, and messaging servers on a single LAN and want to limit the infrastructure changes during the upgrade process, you can use an in-place upgrade process.

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