Planning high availability for a 

BlackBerry UEM

 domain

iOS

, 

Android

, and 

Windows

 devices can connect to any 

BlackBerry UEM Core

 instance to receive device management, policy, and configuration updates. If one or more 

BlackBerry UEM Core

instances is unhealthy, 

iOS

, 

Android

, and 

Windows

 devices connect to one of the healthy instances. Load balancing is performed automatically. As a result, device management services continue uninterrupted.

If there is a problem with the management console or 

BlackBerry UEM Core

 for a 

BlackBerry UEM

 instance, you can continue to access the management console and the 

BlackBerry UEM Core

 of any healthy instance.

You can use third-party software to configure a round-robin DNS pool that connects to the management console in each 

BlackBerry UEM

 instance. If there is a problem with a console, the pool makes sure that you connect to a working console.

You can use third-party software to configure a round-robin DNS pool that connects to the web services API in each 

BlackBerry UEM

 instance. If there is a problem with one web services API, using the pool makes sure that you connect to a working web services API. If there is a problem using the web services API pool, check the round robin mechanism to ensure the web services API is correctly connected.  

You can install one or more instances of the 

BlackBerry Connectivity Node

 to add additional instances of the device connectivity components to your organization’s domain. You can also create server groups to specify regional data paths for secure connectivity and to set up high availability for the components of the 

BlackBerry Connectivity Node

. For more information, see High availability and the BlackBerry Connectivity Node.

If 

BlackBerry 10

 devices on a 

BlackBerry UEM

 instance cannot connect to work resources using enterprise connectivity, those devices are reassigned to healthy 

BlackBerry UEM

 instances. 

BlackBerry 10

 devices can use enterprise connectivity to access email and calendar data, the work browser, and the organization’s network. Most management tasks (for example, assigning profiles) require enterprise connectivity to complete successfully. 

The 

BlackBerry Affinity Manager

 assigns 

BlackBerry 10

 devices to a 

BlackBerry UEM

 instance, monitors enterprise connectivity for each instance, and moves 

BlackBerry 10

 users if there are issues with enterprise connectivity. The 

BlackBerry Affinity Manager

 cannot assign 

iOS

, 

Android

, or 

Windows

 devices to a specific 

BlackBerry UEM

 instance.

Only one 

BlackBerry Affinity Manager

 is active. The other 

BlackBerry Affinity Manager

 instances are on standby. If there is a problem with the active 

BlackBerry Affinity Manager

, each standby instance starts an election process to become active. The instance that completes the election process first becomes the active 

BlackBerry Affinity Manager

.