Solaris 10 cannot recognize tape device in library.

We have a DLT7000 tape device in a Quantum PX100 library connected to a Solaris 10 server via SCSI Adapter: X6541A. We can see the tape drive via OBP:
/pci@1e,600000/scsi@2
Target b
Unit 0 Removable Tape QUANTUM DLT7000 2565
But when Solaris 10 is loaded, there are no rmt links in the device tree. I've looked at devlinks and st.conf and made the changes I've read about online, but nothing seems to work. I've installed the following QLOGIC drivers, but they do not help. The only thing left is verifying jumpers? Terminators? But the question remains, if the system sees the tape drive at the OBP, then what's going on with the software? There's an sgen.conf file in /kernel/drv, but no sgscan type commands are available to use. I'm at a loss.
SUNWqus.tar.Z
SUNWqusu.tar.Z
SUNWqusx.tar.Z
SUNWqusux.tar.Z

Hello,
... connected to a Solaris 10 server via SCSI Adapter: X6541A. We can see the tape drive via OBP ...
... I've installed the following QLOGIC drivers, but they do not help.
Option X6541A is the Dual Differential Ultra/Wide SCSI (PCI) hba. The driver for this hba (based on SYM 53C876 chip) is already included with Solaris to support the integrated SCSI controller of most SPARC systems.
The QLogic drivers support Option X6758A PCI Dual Ultra3 SCSI Host Adapter (LVD).
But when Solaris 10 is loaded, there are no rmt links in the device tree
Rebuild the device tree either with boot -rv from the ok-prompt or devfsadm -c tape.
If you can afford the downtime, I would recommend the first choice.
Michael
Edited by: MAAL on 24.02.2010 06:45
Added information regarding the drivers for the hba.

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