locked
How many users does Microsoft say that each IAG appliance can handle at once (concurrent connections) RRS feed

  • Question

  • Does anyone have answer to this or provide link to it being documented somewhere?
    Wednesday, August 12, 2009 8:22 PM

Answers

  • Hi Brett--

    I can only speaking for Celestix Networks but below is a link to our IAG Appliances.  To my knowledge, I don’t believe Microsoft independently testes all the various vendors and model.   http://celestix.com/products/wsa/index.html

    Also, consider that these numbers are dependant on what applications you plan on publishing.  Is it SharePoint? is it a basic website?  is there alot of appwrap,  network connector, File access?  all these applications vary its use of bandwidth and CPU cycles on the appliance themselves.

    Thank you
    Dennis

    • Marked as answer by Erez Benari Thursday, August 13, 2009 7:16 PM
    Wednesday, August 12, 2009 9:21 PM

All replies

  • Hi Brett--

    I can only speaking for Celestix Networks but below is a link to our IAG Appliances.  To my knowledge, I don’t believe Microsoft independently testes all the various vendors and model.   http://celestix.com/products/wsa/index.html

    Also, consider that these numbers are dependant on what applications you plan on publishing.  Is it SharePoint? is it a basic website?  is there alot of appwrap,  network connector, File access?  all these applications vary its use of bandwidth and CPU cycles on the appliance themselves.

    Thank you
    Dennis

    • Marked as answer by Erez Benari Thursday, August 13, 2009 7:16 PM
    Wednesday, August 12, 2009 9:21 PM
  • As Dennis suggested thats the way to go .I think it would be a much better approach if you gauge throughput data through the underlying ISA server on the IAG appliance by using the following counters over a certain period of time. Then based on your appliance H/W , available bandwidth and environment traffic , this will help quite accurate figures for you.


    Have a look at this article:

    http://technet.microsoft.com/en-us/library/bb794879.aspx


    Faisal :>
    Thursday, August 13, 2009 9:20 AM
  • Like Dennis said, I'd take the OEM's estimates in their sales & marketing documents with a grain of salt.  Its pretty dependent, not only what users are doing (lots of requests, lots of data, persisteent connections, etc), but how IAG is configured (using endpoint detection, using authentication, 1 trunk or 10 trunks, etc).   Especially in 32-bit IAG, you can keep adding quad core processors to your hearts content, but if the RAM doesn't increase, you will hit the hard limit as to what the OS can utilize, and/or what a trunks application pool in IIS can utilize, and more CPU beyond that is just unutilized horsepower..
    • Proposed as answer by Mark Resnik Wednesday, August 19, 2009 8:02 PM
    Wednesday, August 19, 2009 8:02 PM