How to make EMS-centric Tibco BW to be HA

Hihghly available means accessible and consistent. The concept is to synchronize EMS servers across data centers using global queues routing and use pair of them for service endpoints. For highly available transactions BW instances need to have shared object stores for Arjuna XA Transaction Manager.

More complex solution:

Complementary routes from local EMS instances are omitted for picture clarity. TM should not be local to App instance.

And simple solution: