That is a fine solution for an on-going basis.  But for old / archived data,
"converting" it from tape to HSM / TMM / DASD would leave the end 
result in a different format and destroy the original creation information that 
IT people (including auditors) may want in the future (creation date, time,
jobname, pgmname, expdt, last used date, etc.).

Even if the OP uses IEBGENER to stack, the tape management software
(whatever it is) can be used to populate the tape catalog data from the
original 
data set / file into the entry for the new tape volser / file.

Mark
--
Mark Zelden
Sr. Software and Systems Architect - z/OS Team Lead
Zurich North America / Farmers Insurance Group - ZFUS G-ITO
mailto:[email protected]
z/OS Systems Programming expert at http://expertanswercenter.techtarget.com/
Mark's MVS Utilities: http://home.flash.net/~mzelden/mvsutil.html


On Wed, 17 Jun 2009 08:53:19 +0200, Werner Kuehnel
<[email protected]> wrote:

>Yes, that's what he mean. We do this since some years, even IBM has this
>concept which is called TMM.
>We created a large DASD pool, changed the ACS routines to point the
>UNIT=CART to this pool (no JCL change necessary) and let HSM migrate to
>cartridge. However there are still some very big files going out directly
>to cartridge, because migrating/recalling them would take too much time.
>Using this TMM concept saved us to get extra software for tape stacking,
>however HSM CPU usage is going up.
>Werner Kuehnel
>
>IBM Mainframe Discussion List <[email protected]> schrieb am 16.06.2009
>18:00:58:
>
>> >> We are looking to copy data off of 9840A tapes to 9840D tapes. There
>> are a limited number of free slots in our SL8500, so just letting them
>> wither and die is not an option. Neither is boxing them and mounting on
>> demand. Since there are a limited number of datasets to be stacked we
>need
>> a cost effective solution.
>> >>
>> >> Does anyone know of a cheap or better yet free stacking mechanism
>> besides Iebgener?
>>
>> >DFSMShsm
>>
>> So are you saying he should copy the tape datasets to dasd and then
>> migrate them with HSM?
>> ddk
>>

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