Hi, Mark.
> deleted the tape from the robot
Does this mean you remove the medium from robot physically?
If so, let it back before adding volume on NetBackup.
And media id 002488 or media id 2488L3 still remain on volume
database? If so, delete both first and register 002488 again.
I think David's way is right, but I prefer fixing media id
generation rule. On the media id generation rule tab(in robot
inventory update option), add rule - barcode length is 8 and
rule is "1:2:3:4:5:6". Then perform robot inventory update.
I hope this helps!