[Web-cyradm] Postfix, Cyrus IMAP - redundancy.

[Dave Braford]

I hate to start this discussion, but, I must.
We have a small office(50 humans), with a current working RH9 based  
Postfix, Cyrus IMAP install.
Works great, love it.

I need to build a simple (2) server cluster (if applicable), based on  
the current setup.
I realize we'll need to get up to at least Fedora (x), but, what do I  
do about the mailstore?
NFS won't work, SAN introduces a single-point of failure.....you get  
the idea.
Any ideas for a 'live' fail-over with Cyrus? Murder is murder, and  
takes at least (3) machines, right(?)
How about a RANC? Remember that one? Perdition seems to also need  
more than (2) machines.

MTA redundancy is pretty easy, no worries there.
MySQL can be clustered pretty easily.
I just can't find much out there on mailstore replication or  
mirroring for a small install.
Any insight would be greatly appreciated.

-- 
Dave Braford
Information Technology
Hanon McKendry Advertising
616-776-1111

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