At Marshall University, We have 30K users (200M quota) on Cyrus. We use a Murder Aggregation Setup which consists of 2 frontend node, 2 backend nodes and a master node (all are Dell 1855 Blades). We then further divide the users into 2 storage partitions on each backend (Totals 4 cyrus partitions, all are then mounted on an EMC SAN). We have never experienced performance problems. The daily mail processed on our SMPT gateway usually amounts to 2 million messages, 90%-95% of them are SPAM and are rejected/quarantined at the gateway. So, our internal servers only process from 100,000 to 200,000 messages a day. Jack C. Xue -----Original Message----- From: info-cyrus-bounces@xxxxxxxxxxxxxxxxxxxx [mailto:info-cyrus-bounces@xxxxxxxxxxxxxxxxxxxx] On Behalf Of Vincent Fox Sent: Thursday, October 04, 2007 2:05 PM To: info-cyrus@xxxxxxxxxxxxxxxxxxxx Subject: LARGE single-system Cyrus installs? Wondering if anyone out there is running a LARGE Cyrus user-base on a single or a couple of systems? Let me define large: 25K-30K (or more) users per system High email activity, say 2+ million emails a day We have talked to UCSB, which is running 30K users on a single Sun V490 system. However they seem to have fairly low activity levels with emails in the hundred-thousands range not millions. So far that's the only other place we've talked to. Everyone else seems to spread out 5K users on a large number of backends. We have 60K users, and were trying to run them spread across 2 systems and ran into problems when Fall quarter started and the load just skyrocketed. Email volume today 3.6 million. ---- Cyrus Home Page: http://cyrusimap.web.cmu.edu/ Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
