Have the CIO key the names into the JCL. I caught you said 100,000's of files. 
So write a program to read the list and build what your solution method is. 
Either a job with IEFBR14 or if you used REXX to read the list you could issue 
the HRECALL command, not caring if it worked or not, you could use LISTDSI 
with an option to wait and then you know if it worked or not. That REXX code 
could run IKJEFT1B as a batch job so you do not tie up your TSO session.

Letting REXX submit 500+ HRECALL commands will flood HSM but you can get 
better throughput as multiple recalls from the same tape requested in the right 
sequence will just go from file to file. TSO allocate may dismount the tape 
before your next allocation, and certainly the tape will be rewinding. Try 
batching requests by the tape they are on in the sequence they are on the 
tape.

On Fri, 21 Mar 2008 17:23:09 -0500, Bruno Sugliani <[EMAIL PROTECTED]> 
wrote:

>On Fri, 21 Mar 2008 10:25:01 -0500, Rugen, Len <[EMAIL PROTECTED]> 
wrote:
>
>>Is there a faster way?  If I had a list of files they wanted, could I
>>send the recalls in tape - file sequence somehow to "batch" them?
>>
>AFAIK , you do not even need to do explicit Hrecall
>If you have the  list , you just run a BR14 and it will trigger an implicit
>hrecall .
>The list sorted by volume , in order to reduce the number of mount  should
>improve
>performance .
> Bruno
>Bruno(dot)sugliani(at)groupemornay(dot)asso(dot)fr
>

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