Adding Legacy SCSI tape to Ent Rel 6 64

I have Ent Rel 6 64 bit running in a virtualized environment. I wish to add a Ultium 3 U320 Scsi tape drive. I add an LSI LSI20320IE SCSI controller to the virtual server. The controller shows under the machine settings, but the OS doesn't see a tape drive. /proc/scsi/scsi shows only Virtual CDRom and Virtual Disk. How can i get the SCSI driver running and the tape added?