On Mon, 17 Aug 2009 10:26:43 -0500, Dave Kopischke
<dgkopisc...@oppenheimerfunds.com> wrote:

>On Sun, 16 Aug 2009 10:58:59 +0200, R.S. wrote:
>...
>>>    Things started out great. These devices are fast. But now I find
>>> when I run a JOB with multiple tape allocations in one step specifying
>>> the same esoteric, they all try to mount on the same device. Is this
>>> normal ??? I don't recall ever seeing this before with our other
>>> devices. I ran the JOB again specifying the generic unit name and they
>>> allocated separate devices and the JOB ran good.
>>
>>The same device should be chosen when you specify AFF:
>>UNIT=AFF=previous_ddname_with_tape_alloc
>>
>>Another guess is you esoteric contains only one device ONLINE.
>>
>>BTW: Just curious - what hardware do you use? It is interesting for me
>>because of 3590 emulation.
>>--
>
>Radoslaw,
>   I'm familiar with UNIT=AFF for times when I WANT the same device
>allocated to multiple DD's in one step. But I'm not coding UNIT=AFF and it's
>acting like I am. The strange part is when I changed the UNIT specification to
>use the generic name, it allocated separate devices.
>
>   We just got a DataDomain storage solution with Luminex gateways. I'm just
>starting to learn about them, hence the confusion and questions.
>

The software should be smart enough to ignore it (when appropriate) 
even if you do code it.  I'm pretty sure Sun/STK VTCS does.

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

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