Re: [exim] RHEL4 - Exim 4.x - cluster solution

Tom Brown wrote:
> Hi
>
> I need to design and then build a clustered setup that is scalable that
> will distribute our MTA's across 2 of our datacentres. I have 4 boxes so
> there will be 2 in each location, more should be able to be added later
> if required. I will be configuring this in a master/standby config
> rather than balancing the load between them. I am thinking about running
> a linux ha cluster on these boxes and just treating all 4 as 2 sets of 2.
>
> I guess my questions are does exim play nicely in a linux ha type
> situation and if not what other ways can be employed to maintain a ha
> cluster of mta's ?
>

Exim plays nice with heartbeat. But honestly, if the mail storage is
available from both nodes (clustered filesystem), you will have some
improvement by running them in active-active mode. If they are only mail
relays, there is absolutely no problem running all of them at the same time.