IMHO the best idea is to ignore obsoleted parameter and issue warning
message.
Of course there are justified exceptions.
AFAIK the most common method is to just ignore with no msg. That's why
so many obsoleted parameters can be still found around.
Alternatively it could be worth to consider some general switch, which
makes all the obsolete keywords as syntax error. Just to test and
identify them. But this is more cumbersome for system developers.
What is not excessively laborious is special chapter in the
documentation: obsoleted keywords and parameters. Just for record purposes.
BTW: many moons ago I had a problem with VSAM or ICF. I have found in
the documentation that one of possible reasons is bed entry in CVOL.
But... what is CVOL??? I found no clue. Where is my CVOL? Is it OK? How
to fix it? Fortunately I asked on IBM-MAIN. :-)
Obviously this reason was inapplicable to the OS/390 V2R6.
--
Radoslaw Skorupka
Lodz, Poland
W dniu 23.07.2026 o 13:12, [email protected] pisze:
Hi!
It is frequent, for some configuration options of IBM products, to become
obsolete. When the product is started, these options are normally detected as
OBSOLETE and IGNORED. In your experience, is there a real risk that newer
versions, instead of just recognizing them as obsolete, stop recognizing them
and cause a real problem (for instance, not processing the configuration member
from that specific line, or directly abending the start)?
Just for the record, I have detected such obsolete options in SDSF and ICSF. Of
course, the best way would be to address the problem by just deleting (or
commenting) these obsolete options. But I am not the sysprog (I am a RACF
admin).
Thanks in advance for your help,
Juan Mautalen
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