[email protected]> wrote:

>In the "scratch category" settings, you can set an "expire hold" field that 
>tells the TS77xx how long to keep an expired tape before releasing it to 
>scratch.  I believe that once that threshold is crossed, the TS77xx rewrites 
>the tape mark to the beginning of the tape and all data is lost - unless IBM 
>has some magic they can preform on the back end.
>
"Expired" but not really!?  This makes as little sense as expecting to read a
temporary data set in a subsequent job.

With a physical tape one might EXCP, bypass errors, and recover some data.

But when my employer was designing a product, we learned that some users
expect the scratch pool to be managed FIFO.  I was astonished.

-- 
gil

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