Upgrading The Blackberry Enterprise Server Software In Phases - Blackberry ENTERPRISE SERVER FOR NOVELL GROUPWISE Upgrade Manual

Upgrade Guide
Advantages
• Users experience minimal service interruptions
because user accounts remain active on the old
BlackBerry Enterprise Server until you start the new
one.
This upgrade process uses the same SRP credentials on both the old and the new BlackBerry Enterprise Server instances.
When you use the cutover process, the following events occur:
• BlackBerry devices that are running BlackBerry® Device Software Version 4.0 or later receive new service books, and
wireless data synchronization occurs.
• All BlackBerry devices receive new IT policies.

Upgrading the BlackBerry Enterprise Server software in phases

The phased upgrade process maintains earlier versions of the BlackBerry® Enterprise Server software so that you can
gradually create new BlackBerry Enterprise Server instances and move user accounts to them.
Advantages
• You can move user accounts to the new BlackBerry
Enterprise Server instances gradually, for example, to
limit the number of service books and IT policies that
the BlackBerry Policy Service sends at one time.
• You can monitor system performance as you add user
accounts.
• You can reorganize your BlackBerry Enterprise Server
environment during the upgrade process by changing
user distribution patterns.
When you upgrade the BlackBerry Enterprise Server software in phases, the following events occur:
• BlackBerry devices that are running BlackBerry® Device Software Version 4.0 or later receive new service books, and
wireless data synchronization occurs.
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Upgrading the BlackBerry Enterprise Server software in phases
Disadvantages
previously because it sends new service books to all of
the BlackBerry devices that are capable of wireless
data synchronization.
Disadvantages
• You require additional 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 a BlackBerry Collaboration
Service and multiple BlackBerry Enterprise Server
instances) in the BlackBerry Enterprise Server
software until all BlackBerry Enterprise Server
components are at the same version.