List,

 

We're in the process of implementing some TS1120 tape drives on our z/OS
system.  These will sit next to our 3590s.  I don't know if I'm missing
something obvious or if there's something I need to do to make this
work.  Here's the situation - which I know many of you have already
encountered and successfully navigated.

 

The 3590 tape drives and the 3592/TS1120 drives share the same device
type that of UNIT=3590 with an allocation device type of 78048083.  I
have set up esoterics to differentiate between the two.  I use UNIT=MAGS
to point to the 3590s and UNIT=TS1120 to point to them.  This will work
fine for differentiating on a new allocation, but what happens when I
want to get at an existing dataset on a tape?  With the same device type
on both tape drives, I can see the system requesting a TS1120 drive to
load a 3590 tape because the system doesn't know the difference.

 

How do I differentiate between the two on an existing allocation?

 

Thanks.

 

Rex

 


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