Adding USB Drive to Sparc

I have a sparc machine with which I am trying to add an external USB drive.
The server does recognize the USB device, but I cannot see it as an external drive.

How to overcome the issue of driver initialization.
Much appreciate any help.

 more /etc/release
                       Solaris 8 2/04 s28s_hw4wos_05a SPARC
           Copyright 2004 Sun Microsystems, Inc.  All Rights Reserved.
                            Assembled 08 January 2004


May  4 14:55:06 servername genunix: [ID 936769 kern.info] usb_sd0 is /pci@8,700000/usb@5,3/storage@3/disk@0,0
May  4 15:00:27 servername genunix: [ID 408114 kern.info] /pci@8,700000/usb@5,3/storage@3/disk@0,0 (usb_sd0) online
May  4 15:00:43 servername smt: [ID 272566 kern.notice] smt0: nf FDDI driver is not active.  Initialization of this driver cannot be completed.



usb_sd0         Soft Errors: 0 Hard Errors: 4 Transport Errors: 19
Vendor: WD       Product: 5000AAKB Externa Revision: l108 Serial No: Size: 0.00GB <0 bytes>
Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 0



May  4 14:49:05 servername usba: [ID 855233 kern.info] USB-device: storage@3, scsa2usb0 at bus address 2
May  4 14:49:05 servername usba: [ID 349649 kern.info]       Western Digital, External HDD, 57442D574341505731323238343937
May  4 14:49:05 servername genunix: [ID 936769 kern.info] scsa2usb0 is /pci@8,700000/usb@5,3/storage@3
May  4 14:49:05 servername genunix: [ID 408114 kern.info] /pci@8,700000/usb@5,3/storage@3 (scsa2usb0) online
May  4 14:55:06 servername scsi: [ID 193665 kern.info] usb_sd0 at scsa2usb0: target 0 lun 0
May  4 14:55:06 servername genunix: [ID 936769 kern.info] usb_sd0 is /pci@8,700000/usb@5,3/storage@3/disk@0,0
May  4 15:00:27 servername genunix: [ID 408114 kern.info] /pci@8,700000/usb@5,3/storage@3/disk@0,0 (usb_sd0) online
May  4 15:00:43 servername smt: [ID 272566 kern.notice] smt0: nf FDDI driver is not active.  Initialization of this driver cannot be completed.

You might try to mount it manually.