About creating legacy tape drive device files
By default, HP-UX creates tape drive device files when the system is booted. However, the tape driver must be installed and configured, and the devices must be attached and operational.
Alternatively, you can create tape drive device files manually. To do so, use either the HP-UX System Administration Manager (SAM) utility or the insf(1M) command. For information, see the HP-UX documentation.