Latest Entries

CICS, which will celebrate its 35th anniversary this year, is well-known for its scalability, stability, and reliability. With its ability to process 30 billion transactions a day, CICS makes an excellent platform for Enterprise JavaBean (EJB) and Java applications, as it provides easy integration of existing and future applications…

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Data security is an increasingly big concern. Each time an article hits the papers about someone hacking into a computer and retrieving thousands of credit card numbers or other sensitive data, it puts everyone’s vulnerability in the spotlight. If you’re like many companies, you’ve already taken steps to protect at least some of your sensitive information. IBM’s Integrated Cryptographic Service Facility (ICSF) is an excellent tool you can use to protect data…

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Linux 2.6: What’s in It for zSeries?

Linux 2.6 will be coming soon to a distribution near you. There are plenty of articles describing the new features, but they tend to focus on the Intel user (see the Reference section at the end of the article). This article describes some of the new features important to the zSeries user such as the new threading model, scheduling improvements, the new mechanisms for handling and naming devices, and networking. Some of these enhancements are so significant that the major distributors have back-ported them to the 2.4 kernel. I’ll also explore some recent “code drops” specifically for the zSeries 2.4 kernel…

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When IBM discontinued support for 3174 controllers for legacy mainframes, data center managers may have been left wondering where to turn for replacements. However, there seems little reason for concern. Besides IBM’s own replacement upgrade, the 2074, there are several sources for used controllers and new solutions from other vendors…

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Stored procedures have been around since DB2 Version 4 and have seen a few changes since their inception. Version 8 (V8) brings a new requirement to using stored procedures: Workload Manager (WLM). In the past, using WLM to manage stored procedure address spaces was optional. It’s worth taking a quick look at how stored procedures work with WLM so we can understand the benefits. We may want to begin the conversion of our stored procedures from DB2 managed address spaces before we migrate to V8 to take advantage of the WLM environment…

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