One Service Definition To Rule Them All?

This is one of those posts where I have to be careful about what I say – to not throw a customer under the bus with over-specificity. So, bear with me on that score. Actually it’s two customers, not one. But they have the same challenge: Managing Workload Manager (WLM) service definitions for multiple sysplexes.Continue reading “One Service Definition To Rule Them All?”

Mainframe Performance Topics Podcast Episode 29 “Hello Trello”

This was a fun episode to make, not least because it featured as a guest Miroslava Barahona Rossi. She’s one of my mentees from Brasil and she’s very good. We made it over a period of a few weeks, fitting around unusually busy “day job” schedules for Marna and I. And this one is oneContinue reading “Mainframe Performance Topics Podcast Episode 29 “Hello Trello””

Pi As A Protocol Converter

I wrote about Automation with my Raspberry 3B in Raspberry Pi As An Automation Platform. It’s become a permanent fixture in my office and I’ve given it another task. This blog post is about that task. Lots of things use JSON(Javascript Object Notation) for communication via HTTP. Unfortunately they don’t all speak the same dialect.Continue reading “Pi As A Protocol Converter”

Mainframe Performance Topics Podcast Episode 28 “The Preview That We Do Anew”

(Originally posted 2 March, 2021.) It’s unusual for us to publish a podcast episode with a specific deadline in mind. But we thought the z/OS 2.5 Preview announcement was something we could contribute to. So, here we are. I also wanted to talk about some Open Source projects I’ve been contributing to. So that’s inContinue reading “Mainframe Performance Topics Podcast Episode 28 “The Preview That We Do Anew””

SMF 70-1 – Where Some More Of The Wild Things Are

(First posted February 21, 2021) As I recall, the last time I wrote about SMF 70-1 records in detail was Engineering – Part Two – Non-Integer Weights Are A Thing. Even if it weren’t, no matter – as I’d like you to take a look at it. The reason is to reacquaint you with ERBSCANContinue reading “SMF 70-1 – Where Some More Of The Wild Things Are”

Raspberry Pi As An Automation Platform

(First posted 14 February, 2021) Recently I bought a touch screen and attached it to one of my older Raspberry Pi’s (a 3B). In fact the Pi is attached to the back of the touch screen and has some very short cables. This is only a 7 inch diagonal screen but it’s more than enoughContinue reading “Raspberry Pi As An Automation Platform”

Coupling Facility Structure Performance – A Multi-System View

It’s been quite a while since I last wrote about Coupling Facility performance. Indeed it’s a long time since I presented on it – so I might have to update my Parallel Sysplex Performance presentation soon. (For reference, that last post on CF Performance was Maskerade in early 2018.) In the past I’ve talked aboutContinue reading “Coupling Facility Structure Performance – A Multi-System View”

Automating Microsoft Excel Some More

As I said in Automating Microsoft Excel, I thought I might write some more about automating Excel. Recall I wrote about it because finding snippets of code to do what you want is difficult. So if I can add to that meagre stockpile on the web, I’m going to. That other post was about automatingContinue reading “Automating Microsoft Excel Some More”

Mainframe Performance Topics Podcast Episode 27 “And Another Thing”

So this is one of our longest episodes yet, but jam full of content which is very us. As usual, finding times when we can both be available to record was tough. What wasn’t difficult was finding material. I can say for myself what we talked about is a set of things I’ve wanted toContinue reading “Mainframe Performance Topics Podcast Episode 27 “And Another Thing””