> John Madden wrote: >>>I have to deal with increasing charge of by now 500 users that will grow >>>up to 100 000. >>>All mailboxes exist, for a 65Mb mailboxes.db on mupdate >> >> Is murder even necessary for such a configuration? Based on the numbers >> on Cyrus' >> pages, I assumed 200k accounts on one big, beefy box would be ok (and >> management >> more easily swallowed "4 CPU box with 8 GB RAM" than they did "lots of >> little >> boxes.") > > It depend. If they make intensive use of SSL (POP3S and IMAPS), I guess > they risk becoming CPU-bound, in which case it might be easier to split > the load among multiple frontends.
The SSL problem could be solved with: - hardware accelerated SSL on "the big box". - imapproxies like perdition which terminate SSL running on quite simple hardware in front of "the big box". Simon --- Cyrus Home Page: http://asg.web.cmu.edu/cyrus Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html