Business Continuity - Disaster Recovery

Business Continuity - Disaster Recovery

I know about the Zoho CRM backup .zip files, however, this doesn't include any of the infrastructure with like custom fields or custom modules. I am curious on what everyone has in place for a true backup or what your plan is if your Zoho instance were to be completely incapacitated. How long do you feel it would take to get you Zoho application back up and running to its current state should disaster strike? I have yet to find a solid backup solution for Zoho applications/data that would give comfort knowing that we would be able to restore in a timely fashion. This goes for all Zoho applications, not just CRM which is our primary application.