I have inherited a MySQL DB that takes 220 GB of storage. The machine that it's on is 255 GB, leaving 35 GB free. We are in the process of rewriting the application and will be refactoring the DB as well. We would like to take dumps of the data to move them to a newer/larger DB but we're not sure the best way to do it is, considering we can't increase space nor can we attach additional storage. What is the best way to migrate this data?