Zimbra

I see this is an old thread, but had been viewed many times, so I thought I'd respond.

I've got zimbra os ed. 4.5 running in a 540 - it seems to do well, but does occasionally run out of memory and requires a restart (about once every 2 - 3 weeks). I created a script that restarts it when it crashes, so that keeps it going.

I just installed the 5.0.5 version on a 360, and its difficult to get it going. After installation, it seemed to startup fine and run modestly, but as soon as I added additional domains and extra zimlets, it takes about 2 hours for the http/imap services to come alive after issuing a start. I tweaked the memory settings a lot to get it to improve performance once its running, and it seems to do just fine now, but the startup time is REALLY annoying.

I have Zimbra 5.0.1 running on a 720 with a lot of tweaks to lessen the memory requirements. After all the tweaks it runs great under Xen for about 20 people and never has to even think about touching swap.

I tried with a 540 and a 360, but both had to swap a large amount of RAM which is not acceptable if you need any kind of performance from it.

I should add the one I have running on the 540 is for about 7 people, who are spread across the country (so they all don't log in at the same time). The 360 I'm trying to get going is just for myself and my family.

You may want to check out this link for tips:

http://rob.sun3.org/misc/zimbra-on-a-vps-stepbystep/