Have some fun.  Go to the CBT tape and find the program called "TAPEMAP".  Used 
it many times.

Matthew

On Thu, 8 Feb 2024 16:19:01 -0600, Paul Gilmartin <paulgboul...@aol.com> wrote:

>rpomm...@sfgmembers.com> 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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