how to make cyrus high available

[Sebastian Reitenbach]

Hi,

I want to make the one imap server high available, and therefore setup a 
second one on a second server. 
first I thought I can use a cheap NFS mount on both servers to share the data 
store, but as I read, it is not recommended. 
So I thought I could keep them in sync via rsync, the slave pulls periodically 
the master asking for new files, then when the master dies, the slave runs a 
reconstruct over the mailboxes, and then starts the service

a third way is to use replication from the master to the slave imap server, 
but as far as I have read, this feature is relatively new. Is it also possible 
to pull the information from the slave side?

any other possible suggestions to do this, that I am not aware of?
Everything is very welcome.


kind regards
Sebastian