Cc$$$$$ Sent from my Verizon Wireless BlackBerry -----Original Message----- From: "Bo Lynch" <blynch@xxxxxxxxxxxxxxxxx> Date: Wed, 7 Jan 2009 18:45:22 To: CentOS mailing list<centos@xxxxxxxxxx> Subject: Re: Email/GroupWare Suite On Wed, January 7, 2009 6:06 pm, Andrew Cotter wrote: > > >> -----Original Message----- >> From: centos-bounces@xxxxxxxxxx >> [mailto:centos-bounces@xxxxxxxxxx] On Behalf Of Rainer Duffner >> Sent: Wednesday, January 07, 2009 5:32 PM >> To: CentOS mailing list >> Subject: Re: Email/GroupWare Suite >> >> >> 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 >> _______________________________________________ >> CentOS mailing list >> CentOS@xxxxxxxxxx >> http://lists.centos.org/mailman/listinfo/centos > > My problem would be that a single machine is a single point of failure. > We > are looking at zimbra and using at least two machines utilizing GFS and > our > SAN so we can withstand a failure. We have around 75 users but I am not > willing to have email down due to a single machine failing. (Btw, these > would be virtual machines running on xenserver) > > Seeing as you are in education, if you are looking to actually pay for > licensing a product and are actually interested in Zimbra, take a look at > their hosted model. It is only for educational institutions right now > (not > that I know if they will make the offering more widely available) and may > fit the bill even more by not having to manage the hardware. > > My biggest concern is the long term viability of zimbra with the > possibility > of MicroHoo or someone else picking up Yahoo in the future. I don't want > to > start something with that one, but for a business this is definitely a > concern. I believe some of this has been addressed in their licensing > language and there is always the the GPL version which would probably > survive for at least a short while. > > Andrew > > > We would definitely be looking at a app for free in other words zimbra's open source release. We are planning on using existing hardware that we have. Currently we are running CentOS 5.2 with Pentium D 3.2 with 2gb ram and 2 500GB SATA drives in a RAID. The motherboard that we have will support a quadcore xeon if needed. Are setup now has no probs but we are only doing basic email and calendar within squirrelmail itself. Bo Lynch _______________________________________________ CentOS mailing list CentOS@xxxxxxxxxx http://lists.centos.org/mailman/listinfo/centos _______________________________________________ CentOS mailing list CentOS@xxxxxxxxxx http://lists.centos.org/mailman/listinfo/centos