On Thu, 29 Jun 2023 10:27:23 -0400, David Spiegel wrote:
>Hi Lionel,
>SYSDA is a user-defined esoteric group. SYSALLDA, OTOH, encompasses all
>DASD Units and is built-in to z/OS.
>
I have heard that elsewhere; I'm inclined to believe it. And in the JCL Ref.:
SYSALLDA: IBM assigned group-names include SYSALLDA, which
contains all direct access devices defined to the system.
Hiwever, the JCLRef. contains 58 mentions of SYSDA, mostly in
examples; only 8 of SYSALLDA. That nurtures the widespread
misconception which Lionel shares. The JCL User's Guide has
an even worse imbalance.
Have you a better citation? I can't find one in Using Data Sets.
This merits an RCF.
>On 2023-06-26 11:58, Lionel B. Dyck wrote:
>> ...
>> SYSDA, SYSALLDA, or 3390 - all should work as generic unit types and an
>> optional vol=ser=xxxxxx may be needed if SMS is not active and/or the dasd
>> is not mounted as public.
--
gil
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