On Fri, 5 Dec 2003 00:37, Paul Dwerryhouse <[EMAIL PROTECTED]> wrote: > On Thu, Dec 04, 2003 at 11:44:54PM +1100, Russell Coker wrote: > > I've run 250,000 users per mail store using Maildir format, Courier > > and Qmail, given a choice I'd do it all the same apart from using > > Postfix instead of Qmail. > > Does Postfix yet have the ability to handle LDAP users on multiple > backends, looking up a user's mailstore from a 'mailhost' attribute, > without messing around with scalemail?
I'm not sure. I don't see a problem with scalemail (apart from the fact that I never got it working properly - but I'm sure I could have done so). > Last time I looked, it didn't, which is why I chose qmail-ldap for that > system... In retrospect it may have been better to just use a single back-end store. At peak load each of the 5 servers were only doing <3M per second (so it was totally seek bound). If you had 25 disks connected to a single server then it would probably handle all the load without any problems. You would need more than 4G of RAM, but that's been available for some time. I think that a server with 25 disks in RAID-5 arrays and two of the 1G umem cards would be able to handle all of Zon's email (1M mail boxes of which 500K are regularly used) with capacity to spare. -- http://www.coker.com.au/selinux/ My NSA Security Enhanced Linux packages http://www.coker.com.au/bonnie++/ Bonnie++ hard drive benchmark http://www.coker.com.au/postal/ Postal SMTP/POP benchmark http://www.coker.com.au/~russell/ My home page
