Incremental Modernization

The Value of Incremental Modernization for COBOL Applications Portfolios

The concerns facing businesses regarding COBOL modernization are issues that have been created over five decades. This is more than enough time for inherent and potentially unseen variables to develop, and those issues shouldn’t be so quickly dismissed. Yet, there is a perception that a complete and total replacement is a single-step process! Reduced Risk The risk of completely rewriting applications seems appealing to those who don’t understand the value of COBOL or who view

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Common zIIP Usage Mistakes and How to Identify Them

Many organizations using the IBM System z have begun to use zIIP processors to help reduce the overall cost of their mainframe environment. But… Assuming Everything Will Run on the zIIP One of the biggest mistakes you can make is assuming that everything that is eligible to run on the zIIP will actually run on the zIIP. Although this may seem like a reasonable assumption, it neglects to take into account what is sometimes referred

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Digging Into the zIIP: What Does zIIP Eligible Mean?

In the first article in this series on mainframe specialty processors, the zIIP is an “information” processor, where the IIP in its name stands for Integrated Information Processor. When the zIIP was introduced by IBM in 2006, DB2 Version 8 was the first subsystem to take advantage of the zIIP. Over the course of the ensuing years, IBM (and other vendors) have enabled additional workload eligible to be redirected to the zIIP. It stands to

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How to Build a COBOL Modernization Factory

Modernization of legacy systems can be an essential enabler of any digital transformation effort – or a frustrating roadblock impeding all meaningful progress with digital efforts. For enterprises with hundreds or even thousands of mainframe-based COBOL applications, the modernization challenge can seem insurmountable. Such applications have accumulated over the years, the result of generations of COBOL developers with different backgrounds and skillsets responding to an ever-changing set of requirements. While retiring the lot and starting

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Understanding Mainframe Specialty Processors: zIIPS and more

If you are an IT professional who works on IBM z Series mainframes, then you’ve probably heard about zIIPs and other “specialty processors.” But you may not really know what they are, what they do, and why they exist. With that in mind, let’s take a brief journey into the world of specialty processors. Starting in the early 2000s, IBM has introduced several different types of specialty processors. The basic idea of a specialty processor

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Why Incremental Modernization Reduces Risk and Increases Success

The coronavirus pandemic heightened the value and importance of digital adoption. As a consequence businesses have been accelerating their digital transformation plans by three to seven years. This includes mainframe modernization plans. While the breadth and depth of transformation are unique to each organization, components of transformation: processes, alignment of business and IT resources, responsiveness to customers, and changes to the supporting IT assets are consistent. The IT assets involved in this effort are said

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Upcoming Webinar: Measuring the Impact of Shifting COBOL Compute

Upcoming Webinar: Measuring the Impact of Shifting COBOL Compute

Shifting COBOL compute to less expensive platforms may be the best first step on the modernization journey. Identifying and moving the execution of your most expensive COBOL batch jobs provides an opportunity to reduce cost or free up funds in an existing IT budget. This modernization technique offers a low-risk, straightforward, and cost-effective approach that […]

What is the Average Cost per MIPS or MSU? Who Cares!

What is the Average Cost per MIPS or MSU? Who Cares!

The title of today’s post is a question that I get asked all the time. Sometimes by users who are interested in trying to curtail mainframe costs. Sometimes by vendors looking for a way to promote their products that help to reduce costs. While both are well-meaning, this is a question I never answer. Because […]

Common Shifting COBOL Compute Mistakes

Common Shifting COBOL Compute Mistakes

Shifting COBOL compute to less expensive platforms is a great first step on many organizations’ application modernization journey. There are multiple reasons an organization might want to begin with shifting COBOL compute, including low risk, the straightforward nature of the approach, and the potential for extraordinary ROI. NOTE: Cross-compiling COBOL programs into Java byte code […]