In <[email protected]>, on 08/03/2011
   at 01:15 AM, CM Poncelet <[email protected]> said:

>... but open for output, followed by write, works - whereas open for 
>input, followed by read, doesn't (it fails with an "I/O ERR"): that
>is a fact, not an opinion.

No, it is not a fact. It is a fact that you can cause an I/O error
with an incorrect BLKSIZE. It is false that you always get an I/O
error when you override dataset attributes on input.

>So unless the "I/O ERR" is actually the desired outcome, it is an
>error. 

A user error.

>If the dataset is thought to be in error, raise a PMR with IBM.

Don't create a PMR for a user error.

>Otherwise it is the program's merged DCB that is 
>in error - which is what I am saying. 

That isn't what you have been saying. You have been confusing open
with read and confusing the DSCB1 with the dataset itself.
 
-- 
     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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