This will be different site to site due to what is installed and the environment, but here are some general concepts. * Database This is a question for the Database Administrator. You'll need a replicated database, in exactly the same way that you would replicate the database to do large scale reporting off, rather than hitting the production server directly. But in case of a disaster, you'd use pdm configure to point to this replicated database, rather than the original production database. * Service Management Application/s If you're using Service Desk Manager, then configure using "Advanced Availability."