The mainframe is not going away. The Arcati Mainframe Navigator 2026 reinforces the continued importance of IBM Z to business-critical operations, while also showing an industry taking a pragmatic approach to AI. Rather than expecting AI to fundamentally disrupt the...
This article offers a practical USS tuning primer for new mainframers, developers moving into z/OS UNIX, and technical leaders who need to understand the basics before changing system settings.z/OS UNIX tuning can feel familiar and unfamiliar at the same time. USS...
IBM has an undocumented fix to the CICS WEB interface that can optimize throughput and response time while also saving CPU. This article explains how to make it work for you. In the course of my current project, I had the pleasure of working with Ole Olsen at JN Data...
The Latest Tuning Letter issue is out now! Subscribers to Cheryl Watson’s Tuning Letter will find the newest issue, 2026 No.1, on our Tuning Letter website. If you are not a current subscriber yet, sign up today! This subscription-only resource is available to both...
The latest Tuning Letter, 2025 No.3, is out now! Subscribers to Cheryl Watson’s Tuning Letter can find the latest issue, 2025 No.3, on our Tuning Letter website. If you are not a current Tuning Letter subscriber, check the website for information about subscription...
Observability Significance “Observability depends on stitching together the story of a transaction as it moves across subsystems.” IBM OMEGAMON suite and software have been a staple of Z monitoring for decades, reducing outages by empowering operations teams and...
