Ralph Angenendt wrote: > Feizhou wrote: > >>I gather then that to cluster cyrus, you need to not only share the >>actual mailboxes but also /var/imap? > > > No. > > <http://asg.web.cmu.edu/cyrus/ag.html> is a very interesting read on > clustering cyrus servers. > This solution does not appear to support HA. If one backend server goes down, all its mailboxes go with it. a courier-imap/dovecot box would only just have to access a SAN and that is all there is to clustering. Multiple courier-imap/dovecot boxes hitting a database for user info and mailbox location and then hitting the san for the files. simple.