Ah, OK. We didn't have a tape/disk manager.
________________________________
From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> on behalf of
Tony Thigpen <t...@vse2pdf.com>
Sent: Thursday, July 12, 2018 8:10 PM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: REXX as JCL replacement
All the main disk and tape managers have GDGs.
Tony Thigpen
Frank Swarbrick wrote on 07/12/2018 06:06 PM:
> Since when does z/VSE have GDGs??
> ________________________________
> From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> on behalf of
> Tony Thigpen <t...@vse2pdf.com>
> Sent: Wednesday, July 11, 2018 1:35 PM
> To: IBM-MAIN@LISTSERV.UA.EDU
> Subject: Re: REXX as JCL replacement
>
> Restarts with GDGs is one thing z/VSE is much better at. Once a GDG is
> created in a step, it becomes the current GDG for all following steps.
> So, following steps don't need to reference +1, then require a change
> during a restart.
>
> It part of the difference that z/OS reads the whole job in then
> allocates everything where as z/VSE only reads the following JCL after
> the previous step has completed.
>
> Tony Thigpen
>
> John McKown wrote on 07/11/2018 01:30 PM:
>> On Wed, Jul 11, 2018 at 12:01 PM Jesse 1 Robinson <jesse1.robin...@sce.com>
>> wrote:
>>
>> I, like many here, am old enough to remember how much of a PITA
>> it was to restart a job when a step failed for some reason. Mainly deleting
>> datasets, but also changing GDG relative generation numbers if the restart
>> is after the step which created the new GDG which is used in subsequent
>> steps. {shudder}
>
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