Collecting information about the computers that support your network (for example, primary domain controllers and backup domain controllers) can be a time-intensive process; however, this process is necessary for you to plan a successful SMS deployment.
At a minimum, you need to gather the following hardware, software, and network information for each domain controller and file server in your network:
Use this information to create a network diagram. After you make decisions about the site structure and site system hardware requirements, you can determine whether any equipment upgrades or new systems are necessary for your SMS 2.0 deployment.
You will also find the network diagram helpful when you create a representative test environment for your pilot project.