Difference between revisions of "CDU-710/M disk controller"
From Computer History Wiki
m (+cat) |
m (+New category) |
||
| Line 23: | Line 23: | ||
[[Category: UNIBUS Storage Controllers]] | [[Category: UNIBUS Storage Controllers]] | ||
| + | [[Category: SCSI]] | ||
Latest revision as of 23:05, 12 January 2024
The CDU-710/M is a UNIBUS SCSI disk controller made by CMD Technology Inc.. It fits in a quad Small Peripheral Controller slot. It support's DEC's Mass Storage Control Protocol.
4.3BSD Quasijarus bootstrap bug
When booting 4.3 BSD Quasijarus, there is a bug (although VMS, NetBSD revisions above 1.6 or so, and Ultrix-32 all boot fine); it hangs inside udcmd() in sys/vaxstand/uda.c.
The fix is to change line 155 from:
if(u->uda_ca.ca_rspint == 0)
to:
if(u->uda_ca.ca_rspdc & MSCP_OWN)
Re-build the bootstrap, and then run disklabel to update the copy on the disk.
