Contact Info

One Campus Martius

Phone: 1-800-COMPUWARE

Web: compuware.com

Y2K vs. Mainframe Skills Shortage: Why Aren’t We Preparing for the Baby Boomer Drain?

By | May 10th, 2012|Agile Dev, Featured, Workforce|

I’m sure most of you remember what it was like working in IT during the late 90s. The buzz of Y2K was everywhere. While some prepared for the end of the world and for planes to fall from the sky, software vendors and IT organizations worked tirelessly to ensure that [...]

Comments Off on Y2K vs. Mainframe Skills Shortage: Why Aren’t We Preparing for the Baby Boomer Drain?

Using IBM’s zAAP Engines to Optimize Java Performance

By | March 20th, 2012|Agile Dev, App Performance, Featured|

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 [...]

Comments Off on Using IBM’s zAAP Engines to Optimize Java Performance

The Mainframe Still Rules

By | March 5th, 2012|Featured|

Although pronounced dead by many so-called IT pundits over the years, the IBM mainframe continues to rule the IT world as it has for the past 48 years. This is especially true in the world’s largest enterprises. For example, the 50 largest banks in the world depend on the mainframe [...]

Comments Off on The Mainframe Still Rules

Mainframe Hardware – Oh How It’s Changed!

By | February 23rd, 2012|Featured|

  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 [...]

Comments Off on Mainframe Hardware – Oh How It’s Changed!

Big Iron — Big Money

By | February 8th, 2012|Featured|

We know that the mainframe is often referred to as “Big Iron” for its powerful and ultra-fast ability to crunch data and process transactions. Did you know, however, that the term Big Iron, or more specifically “Big Iron Horse,” also refers to railroad locomotives? The mainframe and railroad share much [...]

Comments Off on Big Iron — Big Money

What’s Your New Normal?

By | January 30th, 2012|Featured|

Have you experienced substantial change lately? Has it had a significant impact on your work or personal life? If so, you probably have a “new normal.” 2011 was a year of change for me. My personal new normal was setting the table for 3 instead of 4 as we got [...]

Comments Off on What’s Your New Normal?

On the Mainframe, You Can Write Once and Run Forever

By | January 25th, 2012|Featured|

What we're gonna do right here is go back, way back, back into time. When the only people that existed were troglodytes...Neanderthal...troglodytes -- Jimmy Castor, singer, songwriter Well maybe not that far back. But we will go back to a time in the mid-sixties. IBM had just come out with [...]

Comments Off on On the Mainframe, You Can Write Once and Run Forever

IBM zAAP Engines – Are They Worth It?

By | January 17th, 2012|Featured|

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 [...]

Comments Off on IBM zAAP Engines – Are They Worth It?

What is hip? The Mainframe is!

By | January 9th, 2012|Featured|

The venerable mainframe. How many times has it been labeled a dinosaur? How many pundits have relegated it to the dustbin? But here it is, the 21st century and the mainframe is strong. Financial institutions the world over depend on it. IBM is selling big iron like there is no [...]

Comments Off on What is hip? The Mainframe is!

Limits in the Mainframe Universe — What’s Your Plan for 2042?

By | January 3rd, 2012|Featured|

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 [...]

Comments Off on Limits in the Mainframe Universe — What’s Your Plan for 2042?

Interesting Mainframe Factoids

By | December 9th, 2011|Featured|

So you think the mainframe is yesterday’s news -- that there's really nothing new going on in the Land of Big Iron. Well, maybe you need a little historical perspective. You’ve heard of HTTP – HyperText Transfer Protocol. Did you know that IBM’s Generalized Markup Language (GML) was a precursor to hypertext [...]

Comments Off on Interesting Mainframe Factoids

Pitfalls to Avoid When Modernizing the Mainframe Development and Maintenance Programming Environment

By | December 6th, 2011|Featured|

Compuware began leveraging modernized user interfaces in its legacy mainframe developer tools over five years ago. The technology helps customers reduce costs, boost developer productivity and attract a new generation of programmers into the mainframe. In working with dozens of customers who have implemented the new modern Compuware interfaces along with modernized tools [...]

Comments Off on Pitfalls to Avoid When Modernizing the Mainframe Development and Maintenance Programming Environment

What’s Your Limit in the Mainframe Universe? – Part 2

By | November 28th, 2011|Featured|

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 [...]

Comments Off on What’s Your Limit in the Mainframe Universe? – Part 2

Mainframe Skills Shortages Expose Rising Costs and Increased Business Risks According to Compuware Research Study

By | November 21st, 2011|Featured|

Compuware today released the results of an independent research study of mainframe usage – and the business risks and costs of a retiring mainframe workforce. Some 520 CIOs in large enterprise organizations with over 1,000 employees were surveyed for the study, including 100 CIOs each in the U.S., UK, France and [...]

Comments Off on Mainframe Skills Shortages Expose Rising Costs and Increased Business Risks According to Compuware Research Study

What’s Your Limit in the Mainframe Universe?

By | November 15th, 2011|Featured|

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, [...]

Comments Off on What’s Your Limit in the Mainframe Universe?

Back Where I Began — Because the Mainframe Matters!

By | November 9th, 2011|Featured|

Nearly 39 and over 7,000. That’s how many years Compuware has been in business and how many customers we now serve. I began working for Compuware in 1984. My bangs were big – and so were my shoulder pads. Early on, the company’s leader described Compuware as a company that [...]

Comments Off on Back Where I Began — Because the Mainframe Matters!

How Garbage Collection differs in the three big JVMs

By | May 11th, 2011|App Performance, Featured|

Most articles about garbage collection ignore the fact that the Sun Hotspot JVM is not the only game in town. In fact whenever you have to work with either IBM WebSphere or Oracle WebLogic you will run on a different runtime. While the concept of Garbage Collection is the same, the [...]

Comments Off on How Garbage Collection differs in the three big JVMs