I don't know if in your case a cluster is the better solution. If i should evolve my cyrus configuration i would evaluate aggregator http://asg.web.cmu.edu/cyrus/ag.html as first possibility. It's a solution conceptually in the middle between perdition and a cluster.

One point of strenght of aggregator solution is that: at any time, you can always add an arbitrary number of nodes to your imap system.

Bye

Paolo

Chad A. Prey wrote:
I am wondering if any of you out there are running cyrus in a cluster?
If so, how did you do it? and how would you do it if you had to do it
all over again?

We are currently using cyrus with perdition which works fine, however,
ideally the situation would be that a user could connect to either IMAP
server though a load-balancer with the /var/spool/imap folders shared
between both machines on a Fibre channel disk array.

We only have 1200 users but they are heavy, abusive users. Our current
cyrus build is on WBEL (like RHEL) 2.4 kernel. I am especially keen to
hear from those that have actually done this.
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