Mark Wilson

Mark Wilson is a globally recognized thought leader and international speaker in mainframe security and technology, as well as a passionate advocate for all things Z. With more than 40 years of experience, Mark serves as the Editor of Cheryl Watson's Tuning Letter and as the Technical Director at Vertali. He is a multi-year IBM Champion and a Planet Mainframe Influential Mainframer.

AI-Powered WLM Cuts Batch Queue Time by Up to 70%

Sep 1, 2026 | Artificial Intelligence, Cheryl Watson's Tuning Letter, z/OS

What happens when Workload Manager can anticipate batch demand instead of simply responding to it? The latest issue of Cheryl Watson’s Tuning Letter leads off with findings from testing IBM AI-powered Workload Manager (WLM). The test used an AI model trained on 30...

What the New IBM z17 Rack-Mount Systems Bring to the Table

Jul 28, 2026 | Hardware, IBM z17, Linux, News

The z17 goes small, and I think that’s rather clever. On July 7, 2026, IBM announced new configurations of the z17, and for the first time ever, you can now get a rack-mount option right across the Z and LinuxONE portfolio. Not a new processor, not a new architecture,...

The bill for technical debt just came due

Jul 24, 2026 | Cost, Technical debt

“It still runs" no longer means "it’s still safe." Here is why AI-driven exploit discovery is turning decades of unpatched technical debt, legacy frameworks, and hidden API flaws into an immediate target list.This topic has been nagging at me for months, because it...

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