Author Archives: Julian

Julian Stuhler’s Guest Blog on “Getting the Most out of DB2 for z/OS and System z”

I’d like to follow up on a topic last mentioned in this very column last November, on the subject of “Not Accounted” time (link here ). The list of possible explanations for not accounted time that Willie referred to was … Continue reading

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Techie Tip – Real Time Statistics (RTS) feature

If you make use of RTS and DEFINE NO, you might want to review your processes to ensure that you’re picking up all of the tablespaces you should be…… Since V7 of DB2 for z/OS, IBM has provided a Real … Continue reading

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Performance and profitability don’t have to suffer as a result of high CPU usage

Managing performance and cost has become a significantly more difficult job with capacity planners and performance analysts being asked to defer hardware and software upgrades due to squeezed budgets. Many large IT departments have also seen loss of staff due … Continue reading

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DB2 10 for z/OS- Beta release announced

So, after many months of anticipation and “technology preview” presentations at various conferences, IBM have finally announced the start of the beta process for the new version of DB2 for z/OS. The product that went under the cunning codename of … Continue reading

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Benefits of DB2 9 & looking forward to DB2 X

Despite several key performance enhancements delivered in DB2 version 8, some new customers saw little or no overall improvement due to the overheads inherent in the move to 64-bit architecture and other architectural changes.  DB2 9 reverses this trend, delivering … Continue reading

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Position Power – V9 Spatial Features

 So, what exactly is spatial data? Here’s a simple definition: Spatial data represents real-world features and their relationship to one another. This includes geographic features (rivers, cities, mountains, forests, seas, lakes, etc), areas (flood zones, military exclusion zones, sales territories, … Continue reading

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IOD 2009 Blog – Day 3 – Mainframe update

27th October The third day of the Gold Briefing, and opening day for IOD, is in the history books and there is no shortage of new announcements and interesting tit-bits to share. The opening session was the usual mix of … Continue reading

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IOD 2009 Blog – Day 2 – DB2 pureScale

26th October 2009 Day 2 of the Gold Briefing, and I’m not the only one to see the irony of suffering from information overload at a data management conference! Yesterday I talked about IBM’s grand vision for Information-Led Transformation and … Continue reading

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Julian’s IOD 2009 Blog – Day 1

25th October 2009 Day 1 of the gold briefing here in sunny Las Vegas, and as always I’m astounded by the amount of new and exciting technology heading our way. IBM will be making several big announcements when the main … Continue reading

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How many DB2 for z/OS Stored Procedure Applications?

As always, the answer to this is “it depends”! However, here are some basic rules of thumb that you may find useful: • Define an application environment specifically for your Java stored procedures. This should have NUMTCB set to a … Continue reading

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