This material is copyright and is licensed for the sole use by Kliwon Klimis on 28th October 2008 425 cilce, , frood, grradt, 525254

Installing Zimbra

Hardware

For a production server running ZCS, and assuming that this is a standalone box running no other network services and servicing 100 users, you will need the following:

•A current 32-bit processor of at least 2.0 GHZ (Intel or AMD). For MAC OS X users, the processor should be G5 or better, Intel Core Solo, or Intel

Core Duo.

•At least 2GB of RAM. (However, 4GB is recommended.)

•10GB free disk space for software and logs.

•Additional disk space for mail. I usually assume 500MB of mail per user. So at 100 users, I would recommend at least 100GB of disk space for mail. Why not 50GB (50*100)? Because you need space for your backups. Zimbra stores only one copy of an attachment sent to several users (that can save a lot of space) but needs space for its databases (indexes, etc).

•As the email server is a mission-critical application for any enterprise, I would recommend some sort of hardware fault-tolerance solution. A rule of thumb is that RAID 5 is OK for 100 users. As the organization exceeds that number, RAID 5 is not recommended. Scalability white papers are available on Zimbra's website (for single or multi-server installs).

Software

Zimbra Collaboration Suite Network Edition supports the following operating systems (end of July 2007):

•Red Hat Enterprise Linux 4 (AS or ES), 32 and 64 bits

•MAC OS X 10.4.7

•SUSE Enterprise Server 9 and OpenSUSE 10

•rPath (beta)

Please note: the Open Source Edition also supports other operating systems including:

•Fedora Core 4 and 5

•Ubuntu Linux (6.0.6.1 LTS)

•Debian Linux

•Mandriva Linux (beta)

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