What SCSI ID should the CD-ROM drive be?
Sun has traditionally designated SCSI ID #6 as the CD-ROM drive. This value is hardwired into the kernel of SunOS and Solaris 2.5.1 and earlier. This is probably also the case with Solaris 2.6, but it appears the CD-ROM driver has been overhauled in 2.6, so it may not be a user-configurable option.