I would add a send command to the console. Something like this: send ' list
start3d',cn(00)
Send command tells who send the msg and when.

ITschak

*| **Itschak Mugzach | Director | SecuriTeam Software **|** IronSphere
Platform* *|* *Information Security Continuous Monitoring for Z/OS, zLinux
and IBM I **|  *

*|* *Email**: [email protected] **|* *Mob**: +972 522 986404 **|*
*Skype**: ItschakMugzach **|* *Web**: www.Securiteam.co.il  **|*





בתאריך יום ב׳, 10 בנוב׳ 2025 ב-20:04 מאת Jon Perryman <[email protected]
>:

> On Mon, 10 Nov 2025 15:02:33 +0100, Radoslaw Skorupka <
> [email protected]> wrote:
>
> >>> ALLOC FI(IWASUSED) DA('SYS1.IWASUSED') MOD
> >> Be aware this logic doesn't do any serialization and has the potential
> to miss a couple of procs.
> >I don't think so.
>
> JCL DISP=MOD and DYNALLOC MOD use very different serialization logic. If
> things haven't changed, then most OPEN, WRITE & CLOSE code does not provide
> this serialization either.
>
> You should be able verify this by adding "READ AAA" after the PUTFILE in
> the clist and running the clist from 2 TSO sessions at the same time. I
> don't know the precise behavior but I vaguely remember missing lines when
> pressing enter to allow the clists to complete.
>
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