Gareth Copplestone-Jones
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  • Birmingham
  • United Kingdom

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  • Calene Janacek
  • Surekha Parekh

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Why join "The World of DB2"?
Looking for "one stop shopping" for information, Looking for education, Looking for news blogs and podcasts, Looking for information on local user groups
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High Availability and Disaster Recovery
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IBM Employee / Business Partner

Gareth Copplestone-Jones's Blog

Support for the extended LRSN and RBA format in IBM Db2 for z/OS

Posted on January 28, 2018 at 19:30 0 Comments

Some time ago, John Campbell, Michael Dewert and I published a Db2 white paper on the support for the extended LRSN and RBA format introduced in Db2 11. This paper is no longer available on the internet, so we have decided to reproduce it here as it contains valuable information for safely implementing the extended format in both data sharing and non-data sharing environments, and in particular for avoiding pitfalls which can lead to unplanned outages. …


Exploit in-memory computing on DB2 12 for z/OS to realize gains

Posted on February 22, 2017 at 15:00 0 Comments

Previously I outlined the themes and highlights of DB2 12 for z/OS, including some high-level performance expectations. Let’s move on to look at a developing strategy to deliver performance and scalability improvements by the exploitation of large real memory, particularly the use of in-memory data structures optimised for performance.

The two…


IBM DB2 12 for z/OS is ready for Hybrid Transactional Analytical Processing

Posted on January 11, 2017 at 19:00 1 Comment

IBM DB2 12 for z/OS became generally available on Oct. 21, 2016. It's perhaps sobering to reflect on the fact that DB2 was first announced in 1983 and released in 1985, but its roots—and the roots of all relational databases—go all the way back to mathematician and IBM Fellow Edgar F. Codd's ground-breaking 1970 paper, "A Relational Model of Data for Large Shared Data Banks."

Many major…


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Introducing IBM Db2 for z/OS Developer Extension for Microsoft Visual Studio Code

Started by Calene Janacek in Application Development and DB2 Jul 30. 0 Replies

We are excited to announce that the first iteration of IBM Db2 for z/OS Developer Extension is available now as a free downloadable extension in the…Continue

QMF Governor

Started by Maitena Gallastegi Ginea in Application Development and DB2. Last reply by Maitena Gallastegi Ginea Jul 30. 4 Replies

Hi,We are using QMF Governor to limit the QMF queries of users.We have configured correctly and it is working OK. We want to get statistics of those queries canceled by QMF Governor but we are not able to discover where that information is stored.…Continue

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