netra Netra CD X6971A X6971A CD for Netra-T1's. There are two versions of this option both made by Toshiba. The Toshiba Model XM-1902B which will also say "Dash 02" on a separate label. Toshiba version XM-7002B Dash 03's will not work. Both versions have a Sun part number 540-4179 but only the older versions work. If you know how to make the XM-7002B Dash 03 work, please let us know. netracdx6971a Third-party CD-ROMS Why don't third-party CD-ROMS work on my sun? When Sun first decided to add CD-ROM support, there were already a great number of systems in the field, all of which contained boot proms that expected to boot from disks with 512 byte sectors. Sun had to decide between replacing a whole lot of boot proms or finding a way to make a CDROM act like a disk with 512 byte sectors in order to support it as a boot device. They chose the latter approach. Boot prom revisions 2.4 and older (SLC, SS2) can't boot from a 2048 bytes/block device. Many third party CD-ROM drives use 1024 or 2048-byte sectors, which causes the SCSI driver to see a "data overrun". When the driver asks for N "blocks" (which it thinks are 512 bytes each ) it gets more data back than it expected. Some CD-ROM drives can be told to use 512 byte sectors by setting a jumper, cutting a trace, or using a software command (mode select). Details vary widely, but if you are seeing a data overrun on a third party CD-ROM, then it is most likely doing 1K or 2K transfers and will need some work to be a boot device for a Sun. Sun has designated SCSI ID #6 as the CD-ROM drive. To ensure 100% compatibility on machines running Solaris 2.5.1 and older, it is necessary to use a CD-ROM drive capable of supporting 512 byte sectors. It appears that with the release of Solaris 2.6, a 'special' CD-ROM drive is no longer required. This means virtually any SCSI-2 CD-ROM drive will work on any machine capable of running Solaris 2.6. thircdrom If you need help with ordering or configuring your system call: © 2011 Ames Sciences, Inc. All rights reserved.