Latest Entries

For many mainframe systems programmers, trying to figure out how to install Linux, whether on the mainframe or midrange hardware, can be an extremely frustrating experience. It’s unlike anything you’ve ever done before. This article offers insight on Linux installation considerations and provides the general information you’ll need for a successful installation as well as what groups you’ll need to get involved. You won’t receive any “answers” from this article because each shop is too different for anything generic to fit well with your environment…

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The heart of any DB2 subsystem or DB2 data sharing group is the DB2 catalog and directory. Yet, in spite of their importance, they’re almost invisible to many, and to others are often considered just another set of tables. The catalog and directory were seldom talked about before DB2 Version 8. Everyone knows they’re there and assumes they always will be. They also assume they will always work. Without these tables, however, you aren’t going to get far if you try to do anything with DB2 for z/OS. However, what happens if you should find yourself without them because of some data mishap or worse? How can you get them back?…

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On Jan. 9, 2007, IBM announced that March 16, 2007 is the official availability date for the latest and greatest z/VSE—z/VSE 4.1. Although there isn’t sufficient space here to cover all the details of the new functions and facilities contained in z/VSE 4.1, I will present some of the highlights. For more details on z/VSE 4.1, as well as the new software pricing options, visit the z/VSE Website at www.ibm.com/servers/eserver/zseries/zvse/.

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In today’s IT industry, you can’t but help be bombarded with the buzz on Business Service Management (BSM). Conceptually, it’s the most obvious idea one could imagine, “Let’s manage our IT infrastructure from the point of view of the business processes that run on it!” And while we’re at it, let’s put a man on Jupiter…

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Business Service Management (BSM) ties business processes and operations back to the underlying IT infrastructure that supports those processes. When all the components of the IT infrastructure work, business happens. But a failure in a key component can slow down or even stop the business. The duration of the failure can have a tangible negative effect on revenues and profits. This article will focus on the effects of failure in one of the key components…

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A quick consult with PrivacyRights.org is enough to give you a cold, sinking feeling in your gut about data protection. Leveraging public sources, the site operators maintain a log describing disclosure events involving private personal and financial data. As of mid-January, the total number of persons whose data has been breached is more than 100 million…

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The research was published in the Illuminata report, “IBM System z TCO: Man Bites Dog,” although the data itself was supplied by IBM, and I have to confess it was a little difficult to figure out where the IBM work stopped and the analysis began. Nevertheless, the report is useful in that it revisits some of the cost issues that are often forgotten. Among other things, it points out that the mainframe’s real cost advantage comes into its own above the 10-application level, and increases as we move toward 50 applications, where the complexity of managing dedicated distributed servers becomes prohibitive. The report claims a cost advantage of 30 to 60 percent over 30 Sun Solaris servers or 300 Linux servers…

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Consolidation Drives Virtualization in Storage Networks

While great power brings great responsibilities, great computing power brings virtualization. Virtualization brings finer control to powerful systems that can be logically divided into multiple processes that can be run simultaneously. With the System z9 running z/VM and up to 60 Logical Partitions (LPARs) that each support many Linux on System z servers, it needs a storage network that can effectively handle this power. The System z9 uses new Fibre Channel techniques of N_ Port_ID Virtualization (NPIV) and Fibre Channel virtual switches in virtual fabrics to support Linux on System z under changing situations. This article explores these standardized storage networking virtualization techniques in a practical application…

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