Roberto,

for instance in CICS, we specify:

//CEEMSG  DD SYSOUT=*,SPIN=(UNALLOC,500K)

that should split a group of messages at every 500K.

Best regards.
Max

Il giorno mer 21 gen 2026 alle ore 07:09 Brian Westerman <
[email protected]> ha scritto:

> Sure, I use it all the time it's JESLOG=SPIN, and it works for both JOBs
> and started tasks.
>
> If you search for JESLOG=SPIN, you will get lots of examples.
>
> Brian
>
>
>
> On Tue, 20 Jan 2026 10:58:26 -0400, Roberto Halais <
> [email protected]> wrote:
>
> >Listers:
> >We have long running stcs that accumulate thousands of messages in
> >the JESMSGLG and JESYSMSG datasets.
> >Is there some way that we can specify SPIN and UNALLOC for these datasets?
> >
> >Thank you,
> >Roberto
> >
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