Howie, I had to deal with a similar issue when I was helping the client through a Software buy and modification. As others have commented, it is so dependent on how the code is write, the SQL server, the hardware configuration, how much redundancy is built in, what recovery procedures to you have, etc. It was relatively easy with the package. We visited Sun, created a simulated environment, then stressed the heck out of it an monitor all of the break points. Tuned, then repeated.
Then the development. Really can't know until the app is constructed. How we ended up framing the responses to the client from the software packages was: 1. Scalability: How we would decide when to add additional servers and the cost of adding those servers, both in hardware and software and support personal. 2. Backup: What where the requirements for restart and recovery? How fast versus cost - we got the client to loosing up here after explaining the cost of failure 3. Functionality/Scope: We had significant scope creep that impacted the hardware sizing efforts. While we were able to explain our way out, we should have been so much more specific to start with Whatever you estimate for hardware, double it! ;-). The clients will do so on their scope and beat you up on the additional hardware cost (but I thought you said is was scalable!). Also, if this a ground up development, the hardware/system software will be a relatively small piece of the pie. But at the end of the day, if you don't have the responsiveness you need, cause you significant headaches. In summary, unless this is an existing package, I don't know how you can state specifics before functionality is fully designed and the code written. Overall, this becomes a requirement that is stress tested against during system testing. Good luck. Andy -----Original Message----- From: Howie Hamlin [mailto:[EMAIL PROTECTED]] Sent: Tuesday, November 19, 2002 12:12 PM To: CF-Talk Subject: ColdFusion practical limits I need to provide a big client with the practical limits of ColdFusion 5 running on a Windows 2000 server. The clients wants to know that the server and the associated MS SQL Server can handle 2000 simultaneous transactions. Are there any published stats that would help? Would I need to lod balance several servers to support this? Thanks in advance... Regards, Howie ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Archives: http://www.houseoffusion.com/cf_lists/index.cfm?forumid=4 Subscription: http://www.houseoffusion.com/cf_lists/index.cfm?method=subscribe&forumid=4 FAQ: http://www.thenetprofits.co.uk/coldfusion/faq This list and all House of Fusion resources hosted by CFHosting.com. The place for dependable ColdFusion Hosting.
