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
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