SEG can be configured in high availability and disaster recovery environments with both clustering and non-clustering server configurations. The high availability and disaster recovery setups are independent of the cluster configuration.

Use a load balancer to achieve the desired high availability and disaster recovery configuration. The same public host name must be used for the SEG servers across the data centers to ensure that the users need not reauthenticate when a SEG server failover occurs.

The following are the benefits of using SEG in a clustering and non-clustering server environments:

  • Non-clustered server configuration:
    • Each SEG is updated independently.
    • Failover can be performed at the load balancer.
  • Clustered server configuration:
    • Each data center must have its own MEM configuration and an external URL to update the MEM configuration's cluster.
      Note: The external URL need not match the URL used by devices to access email, instead the UEM console uses the external URL to send policy updates to the appropriate cluster configuration.
    • Internal IP addresses or hostnames are applicable for clustering rather than public IP addresses only.
    • Device EAS profiles must use a third URL that can be failed-over between data centers.