Ed W wrote: > I think there is a whitepaper from Dovecot's current main sponsor > (before they were called Rackspace) which described their architecture > using pairs of servers and DRBD between them. Each server is moderately > loaded and active. If one server fails then half the users don't notice > and the other half get switched over to what is really their slave server. > > Seemed like an elegant architecture... >
It's stupidly simple but it works. If you have two spare systems to make a lab out of you'll be surprised how easy it really is. The only thing I hate about it is the idle slave hardware just because I feed bad about powerful machines sitting around waiting for something to happen. ~Seth
