Latest Entries

The Workload Manager (WLM) discretionary goal type can be an effective, but sometimes risky, goal to assign your workloads. In some cases, work runs most efficiently when it’s assigned a discretionary goal. Other times, work assigned a discretionary goal may not run at all. Like all other aspects of WLM, there are many nuances to the discretionary goal control. This article explores some of these nuances and provides background, insights, and recommendations on how to optimize your use of this goal type…

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Using the CICS Transaction Gateway

With more than 70 percent of the world’s data stored on mainframe computers, it’s probably a fair bet the vast majority of that data is accessible by CICS programs. The programs that comprise CICS applications throughout the world have evolved over dozens of years, changing as business needs or user requirements dictate. Not only do the CICS programs access the data, they also contain the rules that define how your business uses the data and what the relationships are between how the business works and the data stored in the files and databases…

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Business Networking: Penguins and Dinosaurs

In our December/January 2004 z/Journal article, “Jurassic Networking: SNA Applications in an IP World,” we examined SNA and its place in the current business environment. We introduced the Communications Server (CS) for Linux on zSeries product, which enables branch consolidation and infrastructure simplification. In this article, we will explore how your business can exploit your existing SNA applications by using Linux and zSeries to isolate SNA traffic to the data center and fully enable IP network technology elsewhere…

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I must admit I was a little sad to hear about the takeover of Candle by IBM. I know there is a tendency in the Independent Software Vendor (ISV) sector for smaller players to be swallowed up by the big fish, and the result can be positive for customers—if the acquisition guarantees the future of a vulnerable product or assists with cross-vendor integration. (Of course, takeovers can also be disastrous for product support, but I don’t imagine IBM will struggle to fulfill existing commitments!)…

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Open Access to IMS With ODBA and OTMA

IMS, IBM strategic database software using hierarchical database technology to support high-transaction volumes, provides reliable and high throughput for more than 95 percent of Fortune 1000 companies. IMS is comprised of two major components: the Database Manager (IMS DB) and Transaction Manager (IMS TM). Together, they create a complete online database transaction- processing environment, providing continuous data availability and data integrity…

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Compressing data is nothing new for the data center. Making files smaller is one of the ways IT managers ease the transmission and storage of the vast amounts of data that reside in data centers worldwide. Storage Management Subsystem (SMS) data set compression, writing data to tape, and other hardware-based compression technologies have been around for some time on the S/390, but these methods often are insufficient. They leave the IT shop wanting the capability to easily move data off the host onto other computing platforms to serve the needs of various business units…

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