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Batch Architecture, Part Zero
I'm not an architect. I don't even play one on TV. In fact real architects would probably say I'm in the babble phase, architecturewise . But I've been involved in a few situations over the past year or so (and I'm involved in a couple starting round about now) which have led me to the following simple conclusion: Many installations would benefit from drawing up a Batch Architecture . I don't... [More]
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You Might Just Be A Clone If...
As previously discussed I'm often in a situation of trying to make sense of a set of job-related SMF data. Even though it may be your own installation's data, you're probably confronted with what I like to call “a journey of discovery” occasionally, too. I'm always looking for what I can discern from the data. 1 And, when confronted with a set of data about batch jobs, I go into overdrive. This... [More]
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Finding The DB2 Accounting Trace Records For an IMS Batch Job Step
When tuning DB2 batch it's important to know which SMF 101 Accounting Trace record corresponds to which job step. A few years ago I wrote code to do this. It works fine for all z/OS DB2 Batch except that originated by IMS. Here's how it works: Find all the Type 30 Step-End records for a given job name. Find the Type 101 Accounting Trace records for which the Correlation ID in the 101 record... [More]
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Batch Architecture, Part Three
Up until now I haven't talked much about DB2, except perhaps to
note it's a little different. But what is a DB2 Batch job anyway? It's
important to note a DB2 job ISN'T necessarily exclusively DB2 - although
some are. It's just a job that has some DB2 in it. The reason for writing a separate post, apart from breaking things
up a little, is because batch jobs with DB2 in them present... [More]
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Batch Architecture, Part Two
I concluded Batch Architecture - Part One with a brief mention of inter-relationships and data. I'd like to expand on that on this part. Often the inter-relationships between applications are data driven - which is why I'm linking the two in this post (and in my thinking). But let's think about the inter-relationships that matter. There are four levels: Between applications. Between jobs. Between... [More]
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Batch Architecture, Part One
First a word of thanks to Ferdy for his insightful comment on Batch Architecture, Part Zero . And also to my IBM colleague Torsten Michelmann for his offline note on the subject. As I indicated in Part Zero I hoped to talk about jobs in a subsequent post. And this is that post. In particular I want to discuss Viewing jobs as part of distinct applications, and Generating a high-level understanding... [More]
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We Have Residents!
Back in May I wrote about a new batch residency planned for this October and invited good people to apply to join the team. It's been very pleasing how many people applied to be residents and the high quality of the entrants: It was genuinely difficult to pick the eventual team. We also had to reduce the scope a bit - which was a disappointment to both Frank Kyne and I. So, if you didn't get... [More]
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Data Collection Requirements
Over the years I’ve written emails with data collection requirements dozens of times, with varying degrees of clarity. It would be better, wouldn’t it, to write it once. I don’t think I can get out of the business of writing such emails entirely but here’s a goodly chunk of it. Another thing that struck me is that the value of some types of data has increased enormously... [More]
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New Batch Residency
In October Frank Kyne and I expect to run a residency in Poughkeepsie.
You can find the announcement here . The residency builds on the ideas presented here and three subsequent posts. I revisited a specific part of it in
Cloning Fan-In . So what are we going to do? For a start we're going to assemble a team of 4 skilled mainframe folks from wherever we can. One of them will be me, which leaves... [More]
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Evernote, Remember The Milk, SMTP / MIME and z/OS Batch
Another kernel popped the other day: SMTP / MIME . But what on earth is MiGueL Mainframe troubling himself with SMTP / MIME for?
Let's come at this from a different angle... You probably know by now that when you send me your data it gets put through some batch reporting:
Ultimately I don't create the graphs by hand, but I do do the analysis and put the presentation together myself.
That's the... [More]
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