[Dovecot] Multiple locations, 2 servers - planning questions...
CMarcus at Media-Brokers.com
Thu Mar 15 12:51:11 EET 2012
On 2012-03-01 8:38 PM, Stan Hoeppner <stan at hardwarefreak.com> wrote:
> Get yourself a qualified network architect. Pay for a full network
> traffic analysis. He'll attach sniffers at multiple points in your
> network to gather traffic/error/etc data. Then you'll discuss the new
> office, which employees/types with move there, and you'll be able to
> know almost precisely the average and peak bandwidth needs over the MAN
> link. He'll very likely tell you the same thing I have, that a single
> gigabit MAN link is plenty. If you hire him to do the work, he'll
> program the proper QOS setup to match the traffic patterns gleaned from
> the sniffers.
Finally had time to properly review your answers here Stan.
The time you took for the in-depth reply is very much appreciated - and
I'm sure you got a kick out of the level of my ignorance... ;)
As for hiring a network architect, I will absolutely be doing as you
recommend (was already planning on it), but with the information I'm now
armed with, at least I'll have a better chance of knowing if they know
what they are doing/talking about...
I'm still planning for the two physical servers (one at each location),
but you have convinced me that trying to run two live mail systems is an
unnecessary and even unwanted level of complexity. The DC VM will still
be hot (it is always best to have two DCs in a windows domain
environment anyway) so I'll get automatic real time off site backup of
all of the users data (since it will all be on DFS), but for the mail
services, I'll just designate one as live, and one as the hot/standby
that is kept in sync using dsync. This way I'll automatically get off
site back up for each site for the users data stored in the DFS, and
have a second mail system ready to go if something happens to the primary.
Again, thanks Stan... I am constantly amazed at the level of expertise
and quality of advice available *for free* in the open source world, as
is available on these lists.
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