Hello,
since you want to delete the contents on the tape it is recommended that you do a long erase.
After a long erase please do an inventory.
Also please check whether the device is listed as "tested" in the compatibility list below.
http://support.veritas.com/docs/271382
http://support.veritas.com/docs/271383
If yes then please install the latest veritas drivers with the help of the link below:
http://support.veritas.com/docs/273853
If not tested then please install latest device manufacturers drivers
NOTE : If we do not receive your intimation within two business days, this post would be "assumed answered" and archived.
Thanks,