Most Recently Published Tuning Letters
Cheryl Watson's Tuning Letter 2025 | Volume 35 - Issue 03
What’s in this Issue
- GS-UK In-Person Conferences by Mark Wilson
- A Coffee Date with Db2 by Sally Mir
- Using Cloud Object Storage by John Hogan
- CICS 6.35 by Mark Wilson
- Unlocking business insights by Steve Warren
- What’s new in SDSF for z/OS by Rob Scott
- A Call for Help from IBM by Mark Wilson
- IBM z17 The Best Mainframe by Mark Wilson
- Top 10 Findings from z/OS by Niall Ashley
- Hints, Tips, and Lessons by Beth Newman-Jones
- Let me be Frank by Frank De Gilio
- New Function APARs by Tiemo Osman Ramazan
- Conferences & Events by Felix Scott
- Security and Cryptography by Mark Wilson
- Updates ot Arcati for 2026 by Amanda Hendley
Cheryl Watson's Tuning Letter 2025 | Volume 35 - Issue 02
What’s in this Issue
- z17 aka 9175 – highlights by Mark Wilson
- z/OS 3.2 innovations: what’s new and improved by Marna Walle
- How to not buy the wrong CPC/CEC – and what if you did? by Donald Zeunert
- Don’t let breaking changes break you by Ed Jaffe
- Managing capacity, improving performance, and reducing mainframe running costs by Ciara O’Connor
- z/OS Management Facility (z/OSMF): then and now by Rob Herring
- Let me be Frank by Frank De Gilio
- Jargon Buster Reference for Z (JBRZ) — First Edition by John Baker
- New Function APARs by Tiemo Osman Ramazan
- Conferences & Events by Felix Scott
Cheryl Watson's Tuning Letter 2025 | Volume 35 - Issue 01
What’s in this Issue
- Pardon the Interruption: CPENABLE and Interrupt Delay by John Baker
- From APARs to PTFs: SMP/E Deciphered by Christopher Knowles
- An Introduction to System Exits by Mark Wilson
- Back to the Future: From the Archives by Andy Taylor
- Let me be Frank by Fark De Gilio
- z17 – A Quick Look by Mark Wilson
- Conferences & Events
- News & Updates
Cheryl Watson's Tuning Letter 2024 | Volume 34 - Issue 04
What’s in this Issue
- Fond Farewell
- Customer MIM to GRS Migration — Performance Experiences
- An Introduction to IBM APARs and PTFs, with a hint of an FMID
- Considerations for Long-Running Db2 DDF Transactions
- User Experiences and Tips
- News
- Conferences & Events