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IBM z17 NTS Enhancements: Securing Time Synchronization

IBM z17 NTS Enhancements: Securing Time Synchronization

by Steve Guendert PhD | Dec 9, 2025

In October 2025, Planet Mainframe published the first article of this two-part series on IBM z17 Time Synchronization Enhancements. That article focused on time synchronization resiliency and accuracy enhancements introduced on IBM z17. This article continues with a...

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The Biggest Plot Twist? AI is Happening  on the Mainframe

The Biggest Plot Twist? AI is Happening  on the Mainframe

by Wolfram Greis | Nov 14, 2025

Mainframes Bring AI to the Data When the general public hears“mainframe,” they may picture a massive machine from the early days of computing, a relic of a bygone era. However, we know that perception is flawed. The mainframe isn’t a museum piece; it’s the...

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IBM z17 Time Synchronization Resiliency Enhancements

IBM z17 Time Synchronization Resiliency Enhancements

by Steve Guendert PhD | Oct 29, 2025

Most likely, you have heard the generic acronym RAS, which typically stands for Resiliency, Availability, and Serviceability. However, in the world of time synchronization at IBM, we changed RAS to mean Resiliency, Accuracy, and Security. From RAS to IBMz17 Timing,...

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Mainframe Data on the Move: A Security-Centric Perspective, featuring Colin Knight

Mainframe Data on the Move: A Security-Centric Perspective, featuring Colin Knight

by Amanda Hendley | Oct 14, 2025

At the September Virtual Db2 User Group, we hosted Colin Knight, longtime mainframer and Db2 Systems Programming Tech Lead at NatWest. With over 40 years in the field—36 of them working with Db2—Colin cut through the hype to focus on what matters most: security when...

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Cheryl Watson’s Tuning Letter Delivers z/OS Tuning, Hardware Picks, and Performance Tips

Cheryl Watson’s Tuning Letter Delivers z/OS Tuning, Hardware Picks, and Performance Tips

by Mark Wilson | Aug 5, 2025

We are delighted to announce that Cheryl Watson's Tuning Letter 2025 No.2 is now available. If you haven't already subscribed, now is your chance to discover the most comprehensive body of practical and impartial z/OS, and MVS tuning and measurement advice ever...

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The cover for Cheryl Watson's Tuning Letter Issue for 2025 Volume 2

Discover the latest issue of Cheryl Watson's Tuning Letter

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