IDUG NA 2026

The folks at the Db2 Lab provide us with a great tool to monitor Db2. It's free and already installed with Db2. This session will show you how db2mon works and how to use it. Then, we'll discuss how to run it in different ways for different use cases. Next, we'll present a way to run db2mon for historical data gathering and trend analysis. Finally, we'll show examples of the data db2mon provides and what to look for in various performance scenarios.

The future of Db2 for z/OS is Universal Table Spaces (UTS) with IBM signaling that the next version of Db2 will no longer support legacy structures.
At the same time, Db2 itself is evolving toward UTS, with catalog and directory objects already being prepared for conversion through future Db2 13 function levels—reinforcing that UTS is the long-term foundation of the platform.
Despite this, many environments continue to delay conversion. The result is growing data volumes, increased complexity, and higher risk when the transition eventually becomes unavoidable.
This session focuses on why UTS conversion is essential. Beyond the “why,” we will dive into the “how”—sharing real-world examples of conversion failures and lessons learned from the field.

Technical details to Db2 LUW usage and optimization of queries
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

Distributed client applications (from a server) are the most important and common of new workload using Db2 Z.
There are many concepts and terms thrown around which we often too often gloss over without a complete understanding.
This presentation will re-explain basic terms from my user perspective plus share some experiences learned (the hard way?) over recent years.
This presentation covers THREADS and DBATS and CONNECTION. What they mean and how they work and what our Db2 can tell us about their usage and importance.

In today’s busy environment, there is a lot of pressure to automate as much as possible. To that end, and lacking AI tools to do my job, I have come up with a few shortcuts that allow me to automate some normally onerous tasks. In this presentation, I will describe and document some tasks I have automated in my shop. Hopefully some of this will prove useful.