Installation guide

• Configure a hardware load balancer. The load balancer accepts all requests from the application servers, and

distributes the traffic to the various central push servers. If a central push server does not respond, the load

balancer redistributes the requests to the remaining central push servers.

• Configure the application to use the new HTTP response header x-rim-push-gateways.

Configuring support for new attachments

Configure an upgraded BlackBerry Enterprise Server to

support new attachment extensions

When you upgrade a BlackBerry Enterprise Server instance, the upgrade process does not automatically add the new

attachment extensions that the latest BlackBerry Enterprise Server version supports. You must add the new attachment

extensions after the upgrade process completes so that the BlackBerry Enterprise Server can recognize the new

attachment extensions and send them to a BlackBerry Attachment Service instance for processing.

1. In the BlackBerry Administration Service, on the Servers and components menu, expand BlackBerry Solution

topology > BlackBerry Domain > Component view > Attachment > Connector.

2. Click the BlackBerry Attachment Connector instance for the BlackBerry Enterprise Server.

3. Click Edit instance.

4. Click Supported Attachment Server instances.

5. For the BlackBerry Attachment Service instance that you want the BlackBerry Enterprise Server to send new

attachments to, click the

Edit icon.

6. Add the new attachment extensions to the attachment extensions list.

7. Click Save all.

Configure an upgraded BlackBerry Attachment Service

to support new attachment distillers

During the upgrade process for a BlackBerry Attachment Service instance, the setup application does not turn on the new

attachment distillers automatically. If you want the BlackBerry Attachment Service to process new attachments, you must

turn on the attachment distillers for these file formats.

1. In the BlackBerry Administration Service, on the Servers and components menu, expand BlackBerry Solution

topology > BlackBerry Domain > Component view > Attachment > Server.

Upgrade Guide Postupgrade tasks