Paul Gilmartin wrote:
>I believe Rexx messages are IRX; TSO are IKJ.

Yup, it is true. Unless I missed something obvious or I'm blind.

>Can contention occur within a single address space?

Perhaps, but I tried out a stunt upon reading your question - no contention, 
but just an IEC331I 042-002 message.

In ISPF, I edit a dataset, splitscreen, then rename that dataset getting that 
IEC331I as a WAD result. ;-D

But you have a good question. Thanks.

>The Info cited earlier says that VSAM ENQs on QNAME VSAM; allocation ENOs on 
>SYSDSN.  Does VSAM additionally ENQ on SYSDSN?  Which does REPRO use?

Interesting observation. If you get answers, please be kind to post here.

Groete / Greetings
Elardus Engelbrecht

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