Dear all, we are thinking about a scenario on how to set up a server offering http, ftp and a few postfix/mailman driven mailinglists with a redundant failover. I'm _not_ talking about load balancing here - only the master is serving, while the slave sits still and waits, probably with all services shut down until taking over.
While the networking part can be handled by carp, I'm collecting ideas on how to keep the local file systems in synch - especially for ftp users and the mailinglist archives. The synchronization will be done via a dedicated cross coonect cable directly between the boxes. I've seen nice concepts like DRBD (www.drbd.org), offering a "RAID-1" network block device, but did not find anything like that for OpenBSD. Of course there's always the possibility of scripting something own using rsync and friends, but I'm curious if some of you have a similar setup running and can share some ideas, thoughts and big red warnings. Kind regards, Jens
