# uname -a
HP-UX florates B.11.31 U ia64 1580956440 unlimited-user license
# ioscan -funC disk
Class     I  H/W Path      Driver         S/W State   H/W Type     Description
===============================================================================
disk      5  0/0/2/1.0.16  UsbScsiAdaptor   CLAIMED     DEVICE       USB SCSI Stack Adaptor
                          /dev/deviceFileSystem/Usb/MassStorage/dsk/disk@hp-1008+294=A60020000001 
                          /dev/deviceFileSystem/Usb/MassStorage/rdsk/disk@hp-1008+294=A60020000001
disk      1  0/1/1/0.0.0.0.0  sdisk            CLAIMED     DEVICE       HP      DG146BAAJB
                          /dev/dsk/c1t0d0   /dev/rdsk/c1t0d0
disk      2  0/1/1/0.0.0.1.0  sdisk            CLAIMED     DEVICE       HP      DG146BAAJB
                          /dev/dsk/c1t1d0   /dev/rdsk/c1t1d0
disk      3  0/1/1/0.0.0.2.0  sdisk            CLAIMED     DEVICE       HP      IR Volume
                          /dev/dsk/c1t2d0     /dev/dsk/c1t2d0s2   /dev/rdsk/c1t2d0    /dev/rdsk/c1t2d0s2
                          /dev/dsk/c1t2d0s1   /dev/dsk/c1t2d0s3   /dev/rdsk/c1t2d0s1  /dev/rdsk/c1t2d0s3
# cd /DVD
# ll
total 4
dr-xr-xr-x   1 -1         -1            2048 Oct 29 20:07 DATAFILE