Reaction score: 1,299
Very "interesting" setup. Creative Did s/he consider to use HAST & CARP & clustered service mirror setup?The reason I asked, an aquaintance of me did a setup for a redundant service box. Two machines who each could almost handle all mail/web/svn/whatever, but easily half of it. Each has a raid-1 with one disc of that in the other machine, so you would upon a hardware fault fire up a VM on the other which ran the missing services on the then degraded raid-1. That worked pretty good, at least I heard no bad things.
Reaction score: 108
You can mitigate the human failure by
zfs snapshot .... Agree that the snapshot does not replace backup, but still gives some extra security, especially on mirror or raid.