Upgrade Planning Guide

Upgrading a BlackBerry Enterprise Server in a segmented network

recovery, you can upgrade the BlackBerry Enterprise Server instances and configure high availability instead. When you configure high availability, you can also configure automatic failover, which permits a standby BlackBerry Enterprise Server to take over from a primary BlackBerry Enterprise Server without intervention from an administrator.

If you configured database replication for the BlackBerry Configuration Database, you can continue to use database replication after the upgrade process completes. However, during the upgrade process, you must turn off database replication. After the upgrade process completes, you must reconfigure the replicated BlackBerry Configuration Database manually.

As an alternative to database replication, you can configure database mirroring after the upgrade process completes. If you configure database mirroring and if you configure the BlackBerry Enterprise Server instances to support database mirroring, when the principal BlackBerry Configuration Database stops responding, the BlackBerry Enterprise Server can automatically switch to the mirror BlackBerry Configuration Database without intervention from an administrator.

For more information about high availability, see the BlackBerry Enterprise Server Planning Guide.

Upgrading a BlackBerry Enterprise Server in a segmented network

If you distributed the BlackBerry® Enterprise Server components on multiple computers and configured a segmented network using firewalls as documented in Placing the BlackBerry Enterprise Solution in a segmented network, you must verify that the components can communicate with each other. You must open the new ports on the firewalls that the components in the latest BlackBerry Enterprise Server version require. For example, when you upgrade to BlackBerry Enterprise Server version 5.0, you must open the database port for the BlackBerry Attachment Service so that it can communicate with the BlackBerry Configuration Database.

In the latest BlackBerry Enterprise Server version, you must expand the segmented network architecture to include the BlackBerry Administration Service and BlackBerry Monitoring Service. To improve performance of the BlackBerry Administration Service, you can consider placing the BlackBerry Administration Service in close network proximity to the BlackBerry Configuration Database.

Upgrading the BlackBerry Enterprise Server in a Wi-Fi environment

If you upgrade the BlackBerry® Enterprise Server in a Wi-Fi® environment, the upgrade process maintains the WLAN SRP information and WLAN activation settings that you previously configured. The setup application for the latest BlackBerry Enterprise Server version does not display the same Wi-Fi dialog boxes as previous setup applications did. Instead, you can view and change the Wi-Fi settings for the BlackBerry Enterprise Server using the BlackBerry Configuration Panel.