Latest Entries

Databases are costly both on and off the mainframe. My past Total Cost of Ownership (TCO) studies suggest that database administration costs are typically a significant source of overhead in the smallest and largest of enterprises. The right choice of database in a mid-size firm can make a 10-times difference in three-year application TCO—not to mention its effects on speed to upgrade and develop new apps on the same database. An IBM study last year suggested that database administration costs can be as much as 20 percent of overall three-year, large-enterprise TCO…

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Ever since Service-Oriented Architecture (SOA) came on the scene, it’s been the subject of much discussion and anticipation. Organizations that understand it well know it isn’t just another new-fangled technology, but an evolutionary discipline of application architecture and design. But whether SOA was pursued with a sense of responsibility or just as a response to the hype, everyone hoped it would become the next “killer app.”…

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Managing IT has always been about ensuring the availability and performance of the application. At one time, applications were simply transactions on a single system. They might have required databases, business logic and networks, but they were all on a single platform. As IT evolved, business needs drove a requirement for application flexibility, but that also increased complexity. Today, applications are often Web-enabled and span platforms, geographies, and even organizations and companies. But as the requirements have evolved, management of mainframe systems and applications hasn’t changed to match business needs. …

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The mainframe database landscape has been very consistent for the past 25 or more years. IBM introduced DB2 for the mainframe back in 1983, and it has ruled the mainframe roost ever since. Sure, the legacy DBMSs such as IMS, IDMS and Datacom persist, but new workload runs on relational, SQL database systems—and DB2 is the z/OS DBMS of choice…

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Recently, I read a fascinating article titled “Automated to Death” by Robert N. Charette on the spectrum.ieee.org Website. Charette discusses freak accidents and incidents that have occurred on land, sea, and in the air as a result of (or despite) ultra-high levels of automation. He points out that we’re becoming more reliant on automation on our ships and planes to the extent that when things do go wrong—for example, because of an unprecedented chain of events or exceptional weather conditions—the experts with the right technical expertise are no longer in a position to step in and take corrective action…

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Migrate! Modernize! Save money! Be more agile! These messages and many more are probably landing on your desk daily. Is it time to consider moving off the mainframe to another platform, or should you ignore these demands and continue forward secure in the knowledge that IBM is going to look after you?  Unfortunately there’s no formula that is going to generate the right answer to that question for everybody, but this article aims to provide you with guidelines so that you are better able to say “Yes, it’s time I looked into migration more seriously” or “No, the mainframe is where we should stay for the foreseeable future,” or for many, “Maybe, some areas really could benefit from migration, but others really need to stay.”…

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