We also do capacity plans at Syzygy for our clients for free. Plus we perform system audits which can be used for this decision as well, but a simple capacity plan is all you really need to do.
It's difficult to tell what you should get CPU-wise without actual physical data to base it on. Architecture has changed a lot over the years and many of the old "rule of thumb" are now closer to "old wives tales". Whether or not you need 1, 2 or 3 CPU's is a fairly simple thing to calculate once you have the proper data. I didn't see the initial post, but did you say what it is you're running now? One thing you should also consider is getting zIIP or zAAP processors, since you appear to be running DB/2 and CICS you can benefit from them and they are a much lower cost than the "standard" processors. Also, if you are running (or going to run) z/OS 1.11, there is new support for using them interchangeably with each other (zIIPs and zAAPs). Without knowing what you are currently running and how you are meeting your current needs it's difficult to help. If you have the money though, I would suggest getting as many specialty processors as you can. If you only get 1 "standard" processor, you should also get 1 specialty processor, the cost is reasonable, and you can gain a lot of benefit from it. Beyond that, it's a matter of what your site NEEDS to be able to meet it's plan and goals, weighed against the costs involved. If you want to contact me offline we can discuss what you need to look at to make your decision. You more than likely have everything you need already to make the choice, you just need to gather it into a format that you can use for your decision. Brian ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
