On Wed, 25 Feb 2026 22:38:28 +0000, Seymour J Metz> wrote:

>Sorry, I meant to write tape *SAM I/O.
>
You wrote "Maybe", indicating  uncertainty.  Can any reader clarify,
citing documentation.

OMNS certainly provides (limited?) CCSID conversion, Why should
this depend on device type?  We can lament the demise of OS/360
paradigm of I/O abstraction.
>
>________________________________________
>From:  Paul Gilmartin <[email protected]>
>Sent: Wednesday, February 25, 2026 5:13 PM
>
>On Wed, 25 Feb 2026 21:16:23 +0000, Seymour J Metz wrote:
>
>>Maybe it's only used to control translation during *SAM I/O.
>>    ...
>*SAM IO is OMVS file savvy, so that should be no restriction.
>
>Looking for documentation (my bad habit) I found:
><https://www.ibm.com/docs/en/zos/3.2.0?topic=tapes-ccsid-decision-tables>
>AYFK!?
>I infer that over a half-century ago, a designer made a
>dreadful decision, and users have been cursed with
>needless complexity ever since/
>
>>________________________________________
>>On Wed, 25 Feb 2026 08:54:43 +0000, Colin Paice >
>>>
>I have
>>>//STDERR DD PATH='&PATH/stderr.D&YYMMDD..T&HHMMSS',
>>>//            PATHOPTS=(OWRONLY,OCREAT,OTRUNC),
>>>//            PATHMODE=SIRWXU

-- 
gil

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