[imp] Re: Sizing an IMP server

[kenneth yip]

We also plan for HA. From previous posting,
it seems that a load balancer has to be
used to distribute the load rather than
using simple round robin DNS. How do you
implement HA?

My worst case is to have a hot standby
server (maybe a smaller size machine)
sitting in the server room and plug to the
network in case the primary fails.  :)

-- kenneth

"Richard Zuidhof" <rzuidhof at zonnet.nl> wrote in message
news:009d01c34ac9$b8c92de0$094acd0a at mywin2k...
> > From our existing webmail interface (not IMP),
> > the number of concurrent login users is around 1000
> > to 1300 and peak at 2000.
> >
> > I am planning to get a dual Xeon 2.8G and 2GB memory
> > for this server. If anyone has experience in deploying
> > IMP in similar environment, please advise whether
> > the sizing is enough or not.
> >
> > Any input is welcomed.
>
> We are doing about the same (5000 users per hour) but we balance the load
> over two dual 1,8 Ghz Xeon servers with 4GB mem. At peak hours Apache is
> using about 30% CPU. In case one goes down the other can just manage the
> load. We are not using SSL.
>
> So the size of your server is big enough but what about availability?
>
> Richard
>
>
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