Hi, You could also use network equipment to load balance / failover your servers. Have a look to layer 4 / layer 7 switches (www.foundry.net, I think, for example)
More than redundancy, you can think in a scalability/disponibility way. Have two or more servers work together instead of one at a time. Make a search in ML archives, this subject have been deal many times. Cheers, Prune Bernard Frit wrote: > At 14:02 16/10/01 -0400, [EMAIL PROTECTED] wrote: > >> What do folks on this list do about redundancy? I can set up two >> identical mail servers but is there any way, short of mirroring, to >> have automagically failed over cyrus servers? > > > You should try using : > o rsync to mirror your imap tree (+smtp) from production server > to backup server via a private network link (cross cable) > from a crond script. > o heartbeat to manage ip addresses and services activation > on both machines. > > These two packages would keep things mostly simple. > > Just have a look at : > o http://rsync.samba.org > o http://linux-ha.org > > Hope that helps. > -- > Bernard FRIT > -- - le Centre - a Mad Cow Tribe product (Very uncommon, but we should please everybody anyway, even disturbed minds)