Can database server extract data from two different servers easily?
if i have a web site hosted on a dedicated server with 2 hard drives, is it possible any time in real world that both the hard drives are completely full? if so, what can be done considering the fact that the server can have a max of 2 hard drives at a time? if so then, can another server with a larger capacity hard drive of more hard drives be connected to the original server? can these two servers also be connected? how easy it is for a database server like mysql or oracle to put together data from two different hard drives on the same server of two different servers when users request some data online? thanks