Hello,
To simplify my question, 
assume that there are two tape cartridges with same bar codes.
The tapes are extended high performance tapes.
We have two IBM 3494 tape libraries( I call them as 3494A, 3494B).
If I put one tape into 3494A and if I put the other tape into 3494B,
will that cause a problem to ADSM server?
I have ADSM installed on an RS/6000 unix server which manages the two libraries.
I am a newbie in ADSM and someone says this will cause a problem
but I don't understand why.  Since they are in physically different library,
there should be a way to distinguish the two tapes with same bar codes in
ADSM. 
Any comments will be much appreciated.

thanks.