Mainframe, MVS and zOS Discussion

As part of my current work, I happened to run into a scenario where Need safe stop/resume for maintenance windows. How do you build checkpoints and restart? Appreciate any ideas or examples you can share.

I have been working on Link‑edit fails after refactor. What checklist helps restore missing modules quickly? Thanks in advance for sharing your thoughts.

I've been working on something similar and ran into a few doubts. We want elapsed time and counters per transaction. Any low‑overhead logging patterns? Thanks in advance for any pointers.

Has anyone here faced something similar or have a suggestion? We suspect files left open across tasks. How do you locate the offending code path reliably? Appreciate any ideas or examples you can share.

I have a situation in which Designing around variable‑length payloads: CI/CA sizes, freespace, and reorg cadence that keep performance stable? Appreciate any ideas or examples you can share.

Hi All,
Thanks a lot, Enrico and Robert, for your inputs.
I did some more analysis based on your suggestions, and here is what I found about our data:

Record sizes are roughly between 150 bytes to around 5 KB.
About 70% of the records stay within a smaller range, but the remaining 30% vary quite a ...

Hi,

I’m working on a setup with variable-length payloads and need to fine-tune CI/CA sizes, freespace, and reorg cadence to maintain steady performance. Would love to hear what’s worked for others.

Hi,

Is there a way to run CEMT command using some other tool instead of CICS console only?

Thanks Robert. Support team has sent this ticket to the developer's team to resolve. I'll ask my manage to talk to system programmer on this.

Hi,

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For one of the transaction, we're getting AEXY abend code on production but the same screen does not abend and works fine in the test system. This is what I see:

Transaction 'ELOA' encountered a 'AEXY' abend executing at 'O040'. This occurred at offset X'??????' in program 'ELOA543 '. Program ...