Having the Visio diagram of a LiveCycle ES deployment architecture handy always makes for smoother, more coherent architecture discussions. To facilitate that, here is a sample Visio document that can be downloaded and customized to reflect your exact architecture. You would need Microsoft Office Visio 2007 or newer. Here is the PDF version.
Also, many system administrators experience a need to document and maintain configuration information for all of their LiveCycle servers in a production cluster. To help with that, here are additional Visio templates (by J2EE appserver): IBM WebSphere (PDF), Red Hat JBoss (PDF) and Oracle WebLogic (PDF).