June 08, 2026

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Explained: SMF Records

A batch job ran overnight and consumed three times its usual CPU. A CICS transaction that normally completes in 12 milliseconds is suddenly taking 200. A user account was used to access a sensitive dataset at 3am. A DB2 tablespace is approaching its storage limit. None of these events sent an alert. Nobody was watching at the time. But every one of them left a record. Because on z/OS, almost everything that happens is written down. That writing-do… Read More
by Phee Jay

February 07, 2025

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Introduction to OpenTelemetry

OpenTelemetry Imagine trying to debug a slow API endpoint. With traditional logging, you're sifting through files across multiple services. OpenTelemetry offers a powerful solution, letting you follow a request from start to finish, quickly identifying the bottleneck. Read More
by Phee Jay
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