Sorry, I didn't properly articulate what I meant to convey.

I was trying to point out that the term "allocation" is used in more than one 
context, ie. in the case of datasets, (1) assigning datasets to DD names, and, 
specifically in the case of datasets on DASD, (2) their creation and placement 
on disk.

JCL's MSGLEVEL and DYNALLOC's S99MSGL0 both affect what messages are issued at 
that level.

The latter, (2), is performed at the base level by DADSM.  I don't know what 
the relationship is between DADSM, SMS, etc., but messages may well be issued 
at this level.

===



________________________________
From: IBM Mainframe Discussion List <[email protected]> on behalf of 
Peter Hunkeler <[email protected]>
Sent: Thursday, October 20, 2016 4:16 PM
To: [email protected]
Subject: AW: Re: Randomly disappearing IGD101I messages.


>Dynalloc's S99MSGL0 is the equivalent of JCL's MSGLEVEL=0, ie. the allocation 
>of datasets to ddnames.



Not equivalent, I would say. MSGLEVEL is for the whole job, S99MSGL0 is for a 
single allocation.


--
Peter Hunkeler



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