Re: [Fwd: Re: Questions on a redundant mail system]
Hallo MegaPOP.
Forget about NetworkFileSystems like CODA, NFS, ... they won't ensure reliable
availability; they even are a major perfomance bottleneck.
If you "only" need to have a MegaPOP mailsystem like gmx.net, hotmail or
similar the problem won't be mailIN and mailOUT. you need to think about how to
organize that all your users can connect to pop.your-megapop.net but get
connectet to the box that their individual account is stored on. One simple
solution is to use DNS to roundrobbin between several POP3-proxies which in
turn connect to the apropriet POP-box-storage server.
This storage server needs to be secured via RAID ... cause you can't switchover
to an replacement server for it.
All other hosts scale up to a very hi number of users/connections by just
adding another host of that kind. If the POP-storage server fails all the pop
boxes on that host aren't available; but you can have many of them, so for
example if you have 10 and one fails only 10% aren't temporarily unavailable.
Erik Byström wrote:
> Anybody used coda files system for things like this?
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