SHARE is the ideal industry conference in that it offers over 500 technical sessions for you to choose from. Here are the top six sessions we attended at SHARE San Jose, based on my colleagues’ and my own experience.
Before executing a COBOL to Java on z/OS conversion, there are several unrecognized pitfalls companies should be aware of that render possible savings to be of no consequence.
I recently had the honor of serving on the SHARE Academic Award Committee. The SHARE Academic Award for Excellence, sponsored by Compuware and IBM, recognizes and honors the academic work that advances enterprise computing worldwide. Compuware wishes to extend a warm “Congratulations!” to this year’s three very deserving recipients: Grand [...]
Recently, we discovered a Java program in a loop on our z10-BC R03. The program had used over 100,000 CPU zAAP seconds (more than a CPU day), which yields almost ¼ million normalized CPU seconds. Yet, there wasn’t an indication of any performance or response time problems reported from any [...]
Here is a very good perspective view of the height of the cooling towers and the back of the PC board, loaded with a dense cross hatch of twin lead wires, with a spider web type of look. The patented technology used in these chip cooling towers allowed Amdahl to deliver hardware [...]
We receive many questions about the IBM zAAP Java specialty engines. Among the most frequent questions asked is, “do we really need them?” The simple answer is -- if you have committed to Java applications and want them to perform like non-Java applications on your mainframe, then YES! Let me provide [...]
Unless there’s been a recent high impact application problem that involves limits, consideration and design for limits are usually afterthoughts. In fact, odds are that a frequent after-the-fact answer to any question on limits would be “there are none.” Of course, there’s a limit to most everything! Careful analysis during [...]
There are many well known limits for mainframe software. In this post, we’ll start by taking a look at the z/OS system and related software, and discuss some of these limits and how they have affected the workplace throughout the years. For IBM S/360, the most common and popular limit [...]
Have you ever been asked, “What’s your limit?” Well, for IBM mainframes, there are lots of limits! Do you have one in mind? Do you know what your limits are? Limits are more easily understood if we classify or clarify the usage of “limit.” Some limits are, for example: architectural, practical, theoretical, [...]