It depends on the type of case, but it can involve written discovery such as requests for admission, form interrogatories, requests for production of documents, and special interrogatories, or oral depositions.
Unfortunately, AVVO is designed for general legal advice. Discovery is very fact and case specific. The purpose of discover is to obtain the evidence you need to establish your case.
What to ask and what to bring to the status conference would require someone to have a lot more information about your specific case. You should consult a local attorney.