I have a library manager that is sharing a 8 drives in a 3584 library to two 
tsm instances.  All are TSM 5.5.3.0.

If I update the path between a drive and one of the instances offline, will the 
lib manager then not use that drive when allocating drives to that instance?  
Or will it allocate the drive and then generate a failure because the instance 
can't access it?

What I am trying to do, for troubleshooting purposes, is to make a drive 
available to one of the instances but not the other.

David