Am 07.01.2009 um 22:24 schrieb Adam Tauno Williams:
You'll definitely want to look at a multi-server setup for that. Put your mail/web services on one box and database/LDAP on another. Also, for such a large installation you may even want to look at their commercially supported editions. Last time I checked (admittedly quite a while ago) the pricing wasn't too horrendous and I've heard good things about their support staff. We've always opted to go with the pure open source aka self- supported version but then again we're running installations with fewer than 300 users. I believe our largest installation to date is ~100 users or so.
I would have thought that this was a small install:)
Agree. If you need multi-servers for 300 hundred users something is just designed wrong. Unless you've got 300 intense power users.
Even then... 300 users should fit on a desktop-class machine (provided you've got enough RAM). Zimbra uses Java / Jetty and thus likes to have enough RAM. On a single server, I'd go with at least 8 GB of RAM. Go with 64bit Linux (AMD64). CentOS is not supported, but it seems to work nicely or now...
Rainer