We used to use LVS be now we use L4 switching on our routers to do the
same thing.
On Tue, 2003-01-28 at 11:17, Antony Carr wrote:
> you could allways go for a clustered system approach using LVS (or something
> similar) to give a system with failover and load ballencing capabilities.
> This system works well for us. Using this approach we have multiple nodes
> and directors, all the nodes are connected to backend storage (a netaps
> filer) where maildirs reside in a large hash tree.
>
>
> just my suggestion, theres prob better ways out there.
> -----Original Message-----
> From: exim-users-admin@??? [mailto:exim-users-admin@exim.org]On
> Behalf Of Andy Mell
> Sent: 28 January 2003 11:08
> To: exim-users@???
> Subject: [Exim] Redundant exim servers?
>
>
> I need to come up with a plan for making our email servers fully
> redundant...
>
> Theres always the approach of keeping a second machine on standby and
> copying the /var/spool and /var/mail across every ten minutes, locked with
> exim_lock of course. We use uw-imapd/pop3d and something similar would need
> to be done there too to prevent accesses to files.
>
> The other option i was considering was one of the linux network mirroring
> filesystems, but this may be too much overhead and Im not sure how well it
> will do locking.
>
> Another option is to have a dual port raid system, but this isnt truly
> redundant because you have a SPOF in the raid system itself.
>
> Has anyone actually implemented a two or three machine exim cluster, all
> machines the same, smtp/pop3/imap load balanced across machines in the
> network? This sounds like what I want but what were your experiences?
>
> I checked the mailing list, but couldnt find any substantive discussion of
> this subject.
>
> Thanks
> Andy
>
>
> --
>
> ## List details at http://www.exim.org/mailman/listinfo/exim-users Exim
> details at http://www.exim.org/ ##
>
>
>
> --
>
> ## List details at http://www.exim.org/mailman/listinfo/exim-users Exim details at http://www.exim.org/ ##
--
Ron McKeating
Senior IT Services Specialist
Internet Services and Software Solutions
Loughborough University
01509 222329
