atom feed9 messages in net.sourceforge.lists.courier-usersRe: [courier-users] scalability
FromSent OnAttachments
Richard HoustonNov 3, 2003 10:02 pm 
Jesse KeatingNov 3, 2003 10:20 pm 
Gordon MessmerNov 3, 2003 10:45 pm 
Michael J WiseNov 3, 2003 11:52 pm 
matthew kolbNov 4, 2003 5:02 am 
Stefan KaltenbrunnerNov 4, 2003 6:32 am 
Theodore J. KnabNov 4, 2003 6:34 am 
Martin FurmanskiNov 4, 2003 6:48 am 
Jesse KeatingNov 4, 2003 10:29 am 
Subject:Re: [courier-users] scalability
From:Stefan Kaltenbrunner (mm-m@madness.at)
Date:Nov 4, 2003 6:32:03 am
List:net.sourceforge.lists.courier-users

Richard Houston wrote:

Hi all,

I am looking at putting a courier imap server in to production with a large amount of users, over 1000, in the near future. I have be asked a fer time as to how many users can the courier system handle. I will be using postfix and courier-imap. Could I ask a few of you let me know how big you installs are and how well they perform so I can give the management some examples.

we have some 50k mailboxes here, using a LDAP based exim4/courier-imap/horde-webmail system on some Intel based IBM Xseries maschines behind a LinuxVirtualServer (LVS) Loadbalancing setup. Works very well for us :-)

The NFS backend consists of two x345 IBM Servers running a stock Debian Woody and an inhouse backport of the Redhat Clustermanager hooked up to a Fiberchannel SAN (IBM Fastt600). The NFS maschines are that much bored (loadaverage 0.05 or less) that we will soon shift much more services onto them just to see loadaverages with non-zero values in front of the dot :-)

Stefan