Paul Gilmartin wrote:
> If some future release (or a USERMOD?) were to remove not just
> SYSIKJUA propagation, but to remove the ENQ entirely, might it
> then be possible for a user to have concurrent sessions not only
> in different LPARs, but even in a single LPAR?

The MULTITSO package in CBT file 134 appeared when the millenium was young,
and JES (at least JES2) only allowed one TSU job of a specific name to run at
a time.

It works by front-ending the ENQ SVC and converting SYSIKJUA enqueues to
shared.  Also, exits step in to alter the job name in the TSO session's JCL.

This permits 40-ish concurrent TSO sessions from a single TSO userid.
CLISTs invoked at LOGON time used an ISPF profile with a qualifier of
the job name, cloning it from the user's "master" copy if it did not already
exist.

Good for a single system, but not SYSPLEX aware.

Still, I think it proves your point.

Cheers,
Greg

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