Solarwinds packages architecture

Hello everyone,

I was wondering what the best practice would be about installing NPM, ISM, EOC and NTA.

I have read the documentation that Solarwinds offers in its website and what I understand is to install EOC in a central location and install the rest in the client's network.

However, I am not sure how to allocate resources to support this. For instance, what would be the requirements for the SQL database in a separate box? How much traffic should I expect between these servers and EOC across my WAN connection? What are the requirements of the SQL database for EOC?

For what I have read, I know that the database ran by EOC aggregates the SQL database ran by NPM, ISM and NTA. Does this means that the EOC database requires as much space as the rest of the Orion severs together?

I hope anyone can shine some light on this! :)