> Le 11 avr. 2019 à 10:44, luckydog xf via dovecot <[email protected]> a
> écrit :
>
> Hi, list,
>
> I'm going to deploy postfix + dovecot + CephFS( as Mail Storage).
> Basically I want to use two servers for them, which is kind of HA.
>
> My idea is that using keepalived or Pacemaker to host a VIP, which could
> fail over the other server once one is down. And I'll use Haproxy or Nginx to
> schedule connections to one of those server based on source IP( Session
> stickiness), I'll use VIP as DNS record.etc, is my plan doable?
>
> I know MX could be server ones with different priority. But I think it
> brings along shortage that DNS couldn't know Email server is up or down, it
> just returns results to MUA, right?
>
> Thanks for any suggestions and ideas.
>
> -
If you just want HA and don't have scalability issue, the simplest solution is
probably to deploy your mail stack on 2 servers, and use pacemaker to make sure
it run only on one at once (with a VIP managed by pacemaker too).
For the storage, if you have a SAN, go with it, else you may use local DRBD
partition with replication on the standby server.
