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CICS and Batch
In my experience there are two kinds of CICS installations: Those that take CICS down at night - to run the Batch - and those that don't. There is a loose correlation between what the data manager is and which approach is taken: VSAM-based CICS applications tend to be less 24x7 than DB2 ones, though it's not that clear cut. This post is about how you (really I) might glean how you run CICS... [More]
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Memories of Hiperbatch
It's nice to see a flurry of activity in IBM-MAIN about Hiperbatch. And it's more for the emotional reason of reminiscence than for any stunning insights that I'm blogging about it... Back in 1988 I ran a technical project in my then customer, Lloyds Bank, to evaluate Data In Memory (DIM). It was a fun project with a wide range of workloads on multiple machines, including the then-new DB2. So we... [More]
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