Proliant ML350. Addressing an Ultrium 215 Tape Drive With SCO Unix

Hi

I have an HP Proliant ML350 running SCO Unix 5.0.7

The system has a SCSI board in slot 3 running my disc array with no problems.

However I also have an Ultrium 215 tape drive directly attached to a socket on the motherboard. This socket is labelled SCSI 2 (there is also a socket labelled SCSI 1 but this is not in use).

Question: How do I address this tape drive in SCO Unix? What is the adaptor id for the motherboard socket?

Thanks in anticipation.