this is a pretty vague question. exist where ? in a specific network? in a specific bsa install? across your whole company.
not sure about 'are to be deployed' - how many servers are supposed to have the rscd on them? someone in your company should have determined that right ?
So, one or the other way, you should have some list of servers to supply/validate the Agent information n all. Bill is asking for the source of that list - whether it is form some CMDB, provided a sheet or already enrolled servers in console, etc. If you know that, you may write a script using agentinfo, other OS commands or use BDSSA (Reporting tool for BSA) and accomplish what you are looking for.
Health and Value Dashboard may give you a brief details of what you are looking for.