Steve Guendert PhD

Steve Guendert, PhD, (aka “Dr. Steve”) is the chief architect for IBM Z and LinuxONE time synchronization technology. He represents IBM in several time synchronization standards development organizations and projects, including the ITU, IEEE, and IETF. He has 48 patents in time synchronization and IBM Z I/O technology. He has served on both the SHARE and CMG Boards of Directors.

IBM z17 NTS Enhancements: Securing Time Synchronization

Dec 9, 2025 | IBM z Systems, Industry Insights, Infrastructure, Mainframe Operations, Security

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...

IBM z17 Time Synchronization Resiliency Enhancements

Oct 29, 2025 | Infrastructure, Mainframe, Performance, resiliency

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,...