Gareth Copplestone-Jones's Blog (4)

IBM Gold Consultants Db2 12 for z/OS Function Level Adoption Survey

Db2 12 for z/OS Continuous Delivery and Function Levels

The most significant change in the way new features and functions are delivered in Db2 12 for z/OS – and in future Db2 releases – is Continuous Delivery, where function levels can be activated to make new features available. Businesses have dealt with this in a variety of ways, from remaining at the lowest possible function level to…

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Added by Gareth Copplestone-Jones on April 8, 2021 at 11:36 — 1 Comment

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

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. …

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Added by Gareth Copplestone-Jones on January 28, 2018 at 19:30 — No Comments

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

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…

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Added by Gareth Copplestone-Jones on February 22, 2017 at 15:00 — No Comments

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

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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Added by Gareth Copplestone-Jones on January 11, 2017 at 19:00 — 1 Comment

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