Scenario:

I have two high profile applications that will be deployed on JBoss EAP 6.1. I like to minimize the amount of service disruption or outages for these two applications, whenever I make configuration changes.

What is the best practice to deploy these two applications in domain mode across two physical servers?

Option 1: Create a single domain with a domain controller and two host controllers, one on each physical server. Then, create two server groups, one for each application to be deployed on.

Option 2: Create a domain for each high-profile application; then, create two host controllers, one on each physical server. Then, create a server group in each domain.

I greatly appreciate your input on what the best approach will be.

Thanks.