IDUG EMEA 2026

High availability and disaster recovery capabilities are essential for safeguarding mission-critical Db2 environments. Yet for many beginners, the variety of available technologies including backup and recovery strategies, clustering solutions, replication tools, and multi-cloud architecture can feel overwhelming. This session provides a clear, approachable introduction to the full Db2 High availability and disaster recovery landscape, based on real-world experiences. We will walk through the fundamentals of Db2 backup and recovery, explain how Db2 HADR works and when it’s the right choice, and demystify clustering frameworks such as Pacemaker and PowerHA. You will also learn where pureScale fits into HA planning, how Q Replication and CDC support active-active or near real-time availability, and how modern cloud and multi-cloud deployment models are reshaping resiliency design. Whether you’re new to Db2 or looking to strengthen your foundational knowledge, this session will give you t

There are many sessions about the EXPLAIN facility in Db2 LUW, but they all lack the concise statements to find the right SQL queries, set everything up, do the EXPLAIN and draw the right conclusions by examples and working statements to copy-and-paste.

This is a back-to-basics session, enhanced with experiences from real situations and best practices.
This session was presented at IDUG NA 2025 in Atlanta. It was in the Top10 of the user sessions. I will update the material to version 12.1 and preferrably include details regaring AI optimizer