Robert Catterall

Robert Catterall is a Senior Consulting Db2 for z/OS Specialist with IBM. He has worked in IT for 37 years, and has worked with Db2 for z/OS - as an IBMer, an independent consultant, and a user - since 1987.
OUTBUFF: A Db2 for z/OS ZPARM You Really Ought to Check

OUTBUFF: A Db2 for z/OS ZPARM You Really Ought to Check

Over the past year or so, I've seen more and more situations in which a too-small Db2 for z/OS log output buffer is negatively impacting system and application performance. The Db2 development team took aggressive action to remedy that situation via a change to the...

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Db2 for z/OS: SEPARATE_SECURITY and SECADM

Db2 for z/OS: SEPARATE_SECURITY and SECADM

 In the Db2 for z/OS module called DSNZPARM (ZPARM, for short), which provides the configuration settings for a Db2 subsystem, there is a parameter named SEPARATE_SECURITY. This ZPARM was introduced with Db2 10, and its purpose is to enable a Db2 for z/OS-using...

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What Db2 for z/OS People Should Know About Data Fabric

What Db2 for z/OS People Should Know About Data Fabric

"Data fabric" is an increasingly hot topic in IT circles, and with good reason—an effectively implemented data fabric can deliver significant dividends by enabling an organization to get more value from its data assets. Db2 for z/OS people should have some familiarity...

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