In <[EMAIL PROTECTED]>, on 11/09/2006
   at 12:00 PM, "Patrick O'Keefe" <[EMAIL PROTECTED]> said:

>Ok.  No tapes, but all the MCS statements were in the system PTS,
>all the  RELFILE files had built their PDSs, etc.  All the data was
>there.  So I  changed all RELFILE references to TXLIB references,
>added TXLIB DD  statements to the APPLY JCL, and proceeded with the
>RECEIVE and APPLY.

Why? If you had already done a RECEIVE then the proper thing to do was
an APPLY CHECK, not another RECEIVE, and certainly not a RECEIVE with
modified MCS. It would have better to reorder the tapes and in the
meantime find out why the old tapes were thrown out and to ensure that
it didn't happen again.

>but I don't understand how this happened.

It happened because you changed things that you didn't understand. In
this case it was crucial to distinguish between object libraries and
load libraries. I won't say never edit the MCS of a function, but when
you must do so, do it with fear and trembling.
 
-- 
     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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