Strategies for Modernizing the Mainframe Experience

You may have recently read The Benefits and Challenges of Mainframe Application Modernization here in the blog. Careful readers will note that the term I use is “mainframe application modernization” and not “mainframe modernization,” as it is commonly used. You see, the mainframe is a modern computing platform, having been continually updated and modified by […]

Five Great Use Cases to Gain the Benefit of zIIPs

The IBM zIIP is a dedicated specialty processor designed to operate asynchronously with mainframe general processors. The IIP in zIIP stands for Integrated Information Processor, but that doesn’t really define what the zIIP is or how it can best be used. When you use zIIPs, some percentage of your mainframe workload can be redirected off […]

The Benefits and Challenges of Mainframe Application Modernization

Mainframe systems have been the backbone of large businesses and organizations since the advent of the IBM System 360 in 1964. That is a long time for mainframe systems to grow and increase in complexity, making them difficult to maintain over time. As a result, many companies are now considering mainframe application modernization as a […]

Why you need to know the difference between a TCB and an SRB

Units of work that run on the mainframe, at least those running on z/OS, are dispatched using two different types of control blocks: TCBs (Task Control Blocks) and SRBs (Service Request Blocks). It can be beneficial to understand these two types of control blocks, including how they are used, the differences between the two, and […]

The Benefits of Shifting COBOL Compute

Cost is the primary driver for shifting COBOL compute to less expensive platforms. But once organizations decide that they are going to use shifting COBOL compute they discover there are other benefits to this modernization method. These benefits are realized in three areas: impact, risk, and momentum. Financial Impact The immediate benefit of shifting COBOL […]

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

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 […]

The Many Types of Mainframe Pricing

Whenever somebody talks about software pricing on the mainframe or tuning to save on their monthly mainframe bill, I always wonder just exactly what they are talking about. Are they aware of all their company’s licensing agreements and all the intricacies therein? Before we move on, let me just state that the mainframe still makes […]

Improving Mobile Access to Mainframe Assets

Mobile computing has had a seismic impact on IT and modern computing architecture… and will continue into the foreseeable future. Mobile devices – smartphones and tablets – have overtaken traditional computing devices, such as desktop and laptop computers, in terms of how we interact with service providers and retailers. And this transition is even more […]

The Impact of Staffing and Skills Changes on Modernization Plans

In an earlier post, we discussed changes in the technology landscape that should be understood when evaluating an organization’s modernization plans. Another essential reality of the current IT market must be considered as part of a company’s modernization strategy: staffing and skills. For many organizations, staffing changes are driven by the inevitable march towards the […]