Re: middle tier recommendations

From: Param R. (pr_at_nospam.com)
Date: 11/26/04 

Date: Fri, 26 Nov 2004 09:20:29 -0600

Nick, to answer your questions:-

1. 2 Web Servers & 1 Database
2. Starting out 2000+ users.
3. Continuous business use M-S 8-7.
4. 99.99% (8 a.m. - 10 p.m.)
5. During peak times we could see a sudden spike in usage.
6. YES. Realtime modification is a necessity.
7. Limited communication with existing systems - in realtime.

It is all about speed for this project. If the web pages are slow and the
apps take time to execute then the business starts losing $$...

thanks!

"Nick Malik" <nickmalik@hotmail.nospam.com> wrote in message
news:FKqpd.565167$mD.516047@attbi_s02...
> What is driving the architecture? What are the key constraints?
>
> Honestly, most applications are fine with an ASP.NET layer that calls a
> simple middle layer, written as DLLs, that call SQL. That said, most
> applications have fewer than 100 concurrent users. I'm going to venture a
> guess that this doesn't apply to you.
>
> How many servers have you set aside for this application?
> How many users do you plan to serve with this application?
> What is the nature of their use (continuous use for business day,
> occasional
> light use, occasional heavy use, receiving a stream of information)?
>
> In addition, you didn't provide the key constraints that drives the
> architecture.
> Do you have high uptime requirements (99.9% or better)?
> Do you have variable scalability issues (sudden spikes that increase
> traffic
> by an order of magnitude or more for a sustained period)?
> Do you need to be able to modify the behavior of the system while it is
> running due to the nature of competition in your business?
> Do you have existing systems that you need to communicate with? If so,
> are
> these systems designed for real-time communication or do you need to batch
> things up?
>
> Without at least a little of this information, my answer would be too
> vague
> to be useful.
>
> As for .NET remoting, it is a useful mechanism for designs that need to
> partition the execution of the application onto multiple servers. The
> marshalling is far more efficient than with web services, but it is still
> marshalling... and if you are sending data sets across a marshalling
> boundary, you are probably not designing your interfaces correctly.
>
> An excellent book: Advanced .NET Remoting by Ingo Rammer.
>
> HTH,
> ---- Nick
>
> "Param R." <pr@nospam.com> wrote in message
> news:%23kiwNQj0EHA.804@TK2MSFTNGP12.phx.gbl...
>> Hi all, we are in the process of architecting a new application that will
>> have an asp.net front end & sql back end. In the past we have used
>> webservices as a middle tier solution but in terms of performance it has
> not
>> been upto the mark. Besides with the latest .net version there are some
>> known issues with calling web services (keepalives etc.). What other
> middle
>> tier solution does .net have to offer? What is .net remoting and how does
> it
>> work? Is it similar to DCOM? Does it have to run under IIS? I would like
>> something that is not dependent on IIS preferably. In our solution we
>> will
>> be passing custom objects back and forth with the middle tier interacting
>> with the database.
>>
>> Any help and guidance here is much appreciated!
>>
>> thanks!
>>
>>
>
>

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