Hey Todd,
Unfortunately there are no simple options for redundancy right now. However, we're getting very close to finishing our new [cluster packages](http://gluu.org/docs-cluster). They should be ready for public consumption within the next 2-3 months. We're configuring these for some of our supported customers right now, but its still early days.
Basically I think you have two options right now:
1) We can discuss a support contract that includes setting up clusters for your org now, or..
2) Wait until the packages are complete and ready for the public.
One thing to note regarding clusters... we always do at least one clustered development environment and one clustered production environment. So typically four servers at a minimum. Sometimes large customers also have a QA cluster environment.
Hope that helps. Feel free to [schedule a meeting with us](http://gluu.org/booking) if you want to discuss further.
Thanks,
Will