In <[EMAIL PROTECTED]>,
on 06/01/2005
at 09:21 AM, "DOMINGUEZ MARTIN, ANGEL LUIS"
<[EMAIL PROTECTED]> said:
> I remember, in the seventies, that a person told me that DCBD block
>was built taking and overlaping information, in this order, from
>
> 1) VTOC
> 2) JCL
> 3) DCB macro in PROGRAM
It's a bit more complicated than that. The information in the DCB can
come from what was coded on the DCB macro, from values explicitly
stored in the DCB by the program prior to OPEN, from values in the
DSCB, from values in the JFCB or from values stored in the DCB by the
DCB exit. They values in the JFCB normally come from the JCL, but not
always.
>So I think we need to know the source of a program
Or at least decent documentation.
--
Shmuel (Seymour J.) Metz, SysProg and JOAT
ISO position; see <http://patriot.net/~shmuel/resume/brief.html>
We don't care. We don't have to care, we're Congress.
(S877: The Shut up and Eat Your spam act of 2003)
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