Hi all I hope this doesn't sound like a idiot question - but What is the best amount of free hard drive space needed for Exchange 2000 server to operate at its optimum performance? Should it have 1/4 of the hard drive free - 1/8th - at what point can you say - this (lack of hard drive space) is definitely going to slow down the server and it's time to move it to a larger drive? Vicki Knutsen Portland, Oregon