urf. Turns out that one of the two MultiBus to VME adapter DIP settings
was not set to be xyc1 on the 2nd controller, and it was halfway working
(enough for the kernel to see it as xyc1, but data transfers on the bus
were hosed.)
I got sidetracked because the FE manuals describe configurations in
relation to the Sun-3 SCSI card, but it is ambiguous as to what it is
referring to. It appears that it is referring to how many 451s you can
use in relation to also using 7053s along with the SCSI card, and not how
many 451s and/or 7053s you can use with the SCSI-3 card. (i have no 7053s
in the system, so i can use the max 2 451s w/o restriction to the SCSI
card)
Thanks,
--stephen
Thanks to:
dan@bellcore.com correctly suggested VME/Mbus adapter error
I'd already found it when getting ready to replace the second
controller card with another and was double-checking
tommy@big.att.com has working similar configuration
louis@meg.saic.com suggested /vmunix config problem
Original Message:
> From sun-managers-relay@ra.mcs.anl.gov Wed May 25 01:22:11 1994
> Sender: sun-managers-relay@ra.mcs.anl.gov
> Date: Tue, 24 May 1994 23:23:47 -0600
> From: Stephen Dowdy <dowdy@dohnut.cs.colorado.edu>
> Reply-to: Stephen Dowdy <dowdy@dohnut.cs.colorado.edu>
> Followup-to: junk
> To: sun-managers@eecs.nwu.edu
> Subject: Using 2 451s + Sun-3 SCSI in 4/260 ?
> Content-Length: 1111
> X-Lines: 29
>
> The FE guides say you can't use 2 451 controllers along with a Sun-3 SCSI.
> Cursory attempts i've made have failed to work in a 4/260 i'm putting
> together, however, we have a Sun-3/260 that is using this configuration
> so i'm baffled. Is it one of those "usually doesn't work, but might, so
> it's not supported", or is our sun3 in an alternate reality? I was just
> wondering if there's a known workaround.
>
> My configuration:
> 4/260
> Sun-3 SCSI (slot 7)
> XY451 - xyc0 (Slot 8)
> XY451 - xyc1 (Slot 9)
>
> If i don't hook any drives to 'xyc1', the system runs fine. However, if i
> have a drive on 'xyc1', the system hangs during auto-boot (usually while
> doing 'ps -U', which is probably the first disk write done in the boot
> sequence)
>
> I used a Fuji 2333 as xy0 (on xyc0) and a Hitachi 815DK as xy2 (on xyc1)
> for this test. (anything special about the 815?)
>
> Any clues are appreciated.
>
> Thanks,
> --stephen
> --
> Stephen Dowdy - Systems Administrator dowdy@cs.colorado.edu
> Computer Science Dept - University of Colorado, Boulder (303) 492-6196
> "Team Spam in '94" (A division of Beatrice)
>
--
Stephen Dowdy - Systems Administrator dowdy@cs.colorado.edu
Computer Science Dept - University of Colorado, Boulder (303) 492-6196
"Team Spam in '94" (A division of Beatrice)
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