On Tuesday, 05/22/2007 at 09:21 EST, "McKown, John" <[EMAIL PROTECTED]> wrote: > Yes, I know this will be a stupid question. But I will ask anyway > because I have no fear (or was that no sense?). A zAAP engine is used by > z/OS to run Java code. The only reason for such an engine was because of > the CPU demands of Java and the fact that adding the required CPU power > using a general purpose engine would drive up the other software costs. > That is, a zAAP engine is a marketing ploy to "sell" Java (an maybe some > other Java-dependant software such as WAS). It is not a solution to a > technical problem with Java on z/OS. Therefore, there is no need/reason > for Linux on System z to ever support a zAAP (or zIIP or other specialty > engine which is "marketing" oriented). True?
Since more and more new technology is written in Java, and z/OS customers continue to want new technology, a way was needed to deliver it without breaking the bank (yours, not ours). You get more capacity for only the price of the engine. You are right - it was a technical solution to a non-technical problem. We wanted to avoid (a) rewriting every Java application in C (massively increasing the development costs and time-to-market) (b) finding IBMers beaten and bleeding in an alley, having just come to collect on the latest monthly software bill > OK, why the stupid question? I am hoping (perhaps in vain) that > eventually we may get a zAAP to do Java work on z/OS and to get back my > IFL (lost during our z9BC upgrade due to "lack of interest") for > possible Linux on System z work. Our current management incarnation is > very open towards Linux. But they still act like Linux only runs on > Intel. Well, it beats the previous "Windows is the solution to every > problem!" attitude of the previous management group. Then your management doesn't have a problem for System z to solve. They are happy with IT expense levels for personnel, cooling, electricity, real estate, property taxes on servers (if applicable), and license costs (to name a few) as they are. They are also happy with development costs of new apps and the time it takes to deliver new apps. If it ain't broke, why fix it? Other organizations have "hit the wall" on some of these areas, or want to lower overall year-to-year IT spending. Alan Altmark z/VM Development IBM Endicott ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
