Hi Folks,
I'm about to rebuild a server farm, and I'm thinking about alternate
approaches to high-availability for our mail services.
Right now, I just run a collection of services (including mail) on a
virtual machine, on top of a disk farm, with auto-failover to a
hot-spare backup on a 2nd machine. With the addition of a few more
machines into the rack, I'm thinking about dis-aggregating several
services, and wondering about service-specific high-availability strategies.
Can anybody point me to examples, howtos, or what have you on building a
high-availability mail cluster - I'm running Postfix, Amavisd,
Spammassassin, ClamAV (plus Sympa for list management, and UW IMAP - but
those aren't technically part of the mail processing). I'm specifically
looking for approaches to redundant storage of mail ques, failover
models, recovery from failure, and so forth.
Thanks much,
Miles Fidelman
--
In theory, there is no difference between theory and practice.
In<fnord> practice, there is. .... Yogi Berra
