Since a lot of our users are on a public domain including some free webmail users, a lot of the mail received is viruses and spam, which may not be the case for you.
I've found that the two biggest problems are CPU load because of spam filtering (and the amount of spam we get), hard drive space and fragmentation and database performance.
We run on one quad processor server (PIII Xeon) with 2Gb of ram and a raid array (64Mb cache on raid card) and we use MySQL for our user database (works great).
We are not clustering, but we're considering it so I am also curious about anyone else doing this or handling this kind of load.
I don't think you have enough disk space to handle 50,000 users with 3x32Gb (raid or not), but that will depend on what type of usage you get. If you have a lot of IMAP or Webmail users than you will need more, if all your users are POP3 you may get away with it. A safe amount would be 50 to 60Gb available for imail user directories (approx 10Mb per user average) + keeping at least 30% of your disk empty to be able to defragment. So I would look at least at a 100Gb partition for Imail (separate from your primary c partition obviously.) If you know your 50,000 users will be active then you may need twice that much or more.
Hope this helps,
Stephan.
At 03:07 PM 4/15/2004, you wrote:
I work for the Navy. I'm currently developing a new Training Network with Windows 2003 Server. I would like to setup Imail for approximately 50 thousand users. I was wondering:To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
How many servers do you suggest for this amount of users?
How many processors per server?
How much RAM per server?
How many simultaneous connections per server can I expect?
If any of you have setup clustering and have any hints, tips, or known issues I may have?
A little background, I am currently using:
Dell Poweredge 2650
Dual P4 Xeon 2.8 GHz
2GB Ram
3x32GB SCSI Drives
Any help with this matter would be greatly appreciated.
Thanks,
Ronald Halstead
Jr. Systems Integrator - CSC
NETPDTC Pensacola
Comm: 850-452-1001 x1271
DSN: 850-922-1001 x1271
