On Wed, 26 Oct 2011 13:21:30 -0700, Skip Robinson <[email protected]> 
wrote:

>I'm not an SMS guy, but I believe that any data set managed by SMS will
>get created with implicit EOF.
>
>.

True .   The DFSMS Implementing SMS manual says this:           
                                                               
     "For sequential data sets, SMS writes a hardware EOF at   
      the beginning of the data set at initial allocation.     
      This prevents data integrity problems when               
      applications try to read the data before data is         
      written in the data set."                                

I think I recall a  discussion where it didn't but the problem was that there
was no DSORG specified or defaulted by the DATACLAS routine.
Or something along those lines.

Mark
--
Mark Zelden - Zelden Consulting Services - z/OS, OS/390 and MVS       
mailto:[email protected]                                        
Mark's MVS Utilities: http://www.mzelden.com/mvsutil.html 
Systems Programming expert at http://expertanswercenter.techtarget.com/

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