Scaling out help

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Hi,

If I was to build a saas (software as a service) type of application that
potentially would have 1000 customers and 30,000 users then what kind of
infrastructure would you need?

I have built plenty of smaller applications with IIS and the database on a
single windows 2003 server. But I guess I would need a web farm approach?

So, would that mean 2-3 IIS servers, a seperate DB server, a state server
(?), a load balancer? etc?

Any ideas or pointers would be appreciated.
Thanks
NH

[sloan]

Re: Scaling out help


If you want to horizontally scale.....then I would suggest

Middle Tier machines exposing WCF services.

Hardware or Software load balancer.


Check this article out:

http://www.codeproject.com/KB/architecture/DudeWheresMyBusinessLogic.aspx

WCF downloadable example:
http://sholliday.space s.live.com/Blog/cns!A68482B9628 A842A!158.entry

Software based Load Balancing:
http://msdn.microsoft.com/en-us/netf.../bb499684.aspx





"NH" <NH@discussions .microsoft.comw rote in message
news:9A75EE78-9E71-403B-8C40-0A7FEC6253A9@mi crosoft.com...

Hi,
>
If I was to build a saas (software as a service) type of application that
potentially would have 1000 customers and 30,000 users then what kind of
infrastructure would you need?
>
I have built plenty of smaller applications with IIS and the database on a
single windows 2003 server. But I guess I would need a web farm approach?
>
So, would that mean 2-3 IIS servers, a seperate DB server, a state server
(?), a load balancer? etc?
>
Any ideas or pointers would be appreciated.
Thanks
NH