Re: Re: In over my head again...

I think that Carlos was referring to ICF - the Integrated
Catalog Facility.  The level of MVS that TK3 uses does
not have ICF.  It does use VSAM catalogs which have the
concept of "volume ownership".

This means that if a volume has some VSAM on it, the
catalog where the VSAM data set is cataloged "owns"
the volume, and VSAM cataloged in any other catalog
cannot reside on that volume.

This also means that the maximum number of VSAM
catalogs on a volume is one.

If you are creating a new VSAM catalog, you must
choose a volume which has no other VSAM on it,
and also never has had any other VSAM on it
(unless you know how to zap the VTOC to clear
previous ownership).

And regarding LISTCAT - a LISTCAT ALL with no
other operands will get different results depending
on whether it is issued as a TSO command, or run
as a request processed by the IDCAMS (Access
Method Services) utility program.

If you have not run IDCAMS before, it is pretty easy
to do:
//STEP1 EXEC PGM=IDCAMS
//SYSPRINT DD SYSOUT=*
//SYSIN   DD  *
 ... command input
/*

Make sure your IDCAMS commands start no earlier
than column 2.  IOW, ensure column 1 is left blank.

Cheers,
Greg