change tape device link -- final

first, thanks to all who responded.  here is what was done:

hwmgr -show scsi
to get the device id's of the two tape devices.

hwmgr -delete scsi -did 15
where 15 is id for the "missing" device.

dsfmgr -m tape2 tape0
to move it tape0.

some of this came from our software vendor and some from my class notes.
but if i'm understanding everyone correctly, the delete step was not
really needed.  the simple dsfmgr -e src dst is all that's needed
because the unused link will go away on the next reboot. 

this will go into my notes this time!!

thanks all,
    eddie