On 4.4.2012, at 14.38, Patrick Westenberg wrote: > Timo Sirainen schrieb: >> On Fri, 2012-03-30 at 21:37 +0200, Patrick Westenberg wrote: >>> MTA --(lmtp)--\ /--(lmtp)--> backend1 --\ >>> -- director -- -- NFS >>> MTA --(lmtp)--/ \--(lmtp)--> backend2 --/ >>> >>> >>> IMAP-User --> frontend1 --\ /--(imap)--> backend1 --\ >>> -- director -- -- NFS >>> IMAP-User --> frontend2 --/ \--(imap)--> backend2 --/ >> >> The director above must be the same one for both IMAP and MTA. > > I know and it is meant to be the same in this drawing. > > However, in this scenario the director is a single point of failure. > What would be the best way to get loadbalancing and high-availability?
Another director. They're meant to connect to each others and do LB/HA.
