W dniu 09.02.2024 o 15:53, Mark Jacobs pisze:
I seem to recall, but can't find anything that confirms my recollection that
certain HLQs such as SYS1 and PAGE have special powers as relating to systems
programmer type management activities. Can anyone point me to the documentation
if true, or tell me I'm incorrect if I am? Thanks.
The only difference I know is multiple cataloging.
I wrote about it recently.
Regular non-VSAM dataset can be cataloged as many times as you want.
VSAM dataset has backward ref in VVDS and that's why it won't allow to
be recataloged more than once.
However IBM created exception for HLQ SYS1 and PAGE.
Remarks:
- it is relevant to VSAM datasets because of reasons described above
- there is no checking what kid of VSAM with HLQ=PAGE you want to
recatalog. I can be non-page VSAM as well.
- there is also no checking for the purpose of SYS1 datasets.
BTW: The above is about dataset names.
However if you want to fix page datasets, just use &SYSNAME in your
IEASYSxx member or separate IEASYSxx members (added to IEASYS00, which
is mandatory). The HLQ is not really important. It can be PAGE or SYS1
or WHATEVER (assuming MCAT).
HTH
--
Radoslaw Skorupka
Lodz, Poland
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