Configuring disaster recovery for the BlackBerry Enterprise Server across data centers
If your organization's environment includes more than one data center, you can configure disaster recovery for the BlackBerry® Enterprise Server instances by configuring a primary BlackBerry Enterprise Server in one data center, and a standby BlackBerry Enterprise Server in the other data center.
When you configure disaster recovery across data centers, you must consider potential latency issues that can result when the messaging servers, databases, and other third-party applications that the BlackBerry Enterprise Server accesses are not located in close physical proximity to the BlackBerry Enterprise Server. You must also consider how the BlackBerry Enterprise Server should fail over if the local messaging server stops responding. For example, if you configure disaster recovery for messaging servers in two data centers, you must configure the BlackBerry Enterprise Server to fail over automatically when the local messaging server fails over to the messaging server in the remote data center.
In the following diagram, two BlackBerry Enterprise Server pairs in a BlackBerry Domain are configured across two data centers:
In this scenario, you connect the primary BlackBerry Enterprise Server in Data center one to the standby BlackBerry Enterprise Server in Data center two to create a BlackBerry Enterprise Server pair. Similarily, you connect the primary BlackBerry Enterprise Server in Data center two to the standby BlackBerry Enterprise Server in Data center one to create a BlackBerry Enterprise Server pair.
You can connect all of the BlackBerry Enterprise Server instances to the BlackBerry Configuration Database in Data center one. You can also connect all BlackBerry Enterprise Server instances in one data center to the messaging server that is located in the same data center. If the BlackBerry Configuration Database stops responding, the BlackBerry Enterprise Server instances can connect to the mirror BlackBerry Configuration Database.