Hi,
wrote a macro which might help, cause i hope your Tape resides physically
in the Library.

Another solution (maybe only for Craig) is that one can define Storage Pool
 Volumes which never existed in a Pool (type error).

#cat libact.m
/* Actualizes the 3570 Libraries Inventory */
audit libr ibm3570 checkl=b     /* Removes missing Volsers from Inventory
*/
label libv ibm3570 search=y labels=b checkin=scr overwrite=y    /* Labels
and checks in undefined Volsers */
checkin libv ibm3570 stat=pri checkl=y search=y /* Checks in defined
Volsers */

regards
     Mecki