Re: DEC Multia (aka UDB) - problems booting

Michael Champigny (
Tue, 26 Nov 1996 10:59:55 -0500 (EST)

Anthony Wesley said:

> > machine - every kernel that I try falls over just after recognising the
> > SCSI controller (NCR53c810) with an endless loop of timeout + scsi reset
> > errors.

> Hmm; do you have any external SCSI devices plugged in? If so, are you sure
> of the quality of termination of that external part of the SCSI bus? This
> is a real need when stringing devices off the erxternal port.
> --Jay++

Yes, this is *critical*. If you do have any external SCSI devices, make
sure the last device is actively terminated and supplying it's own TERM
power. Get one with diagnostics onboard if you can swing it (I use a
SCSI Rx that you can buy at any Wintel store for under $50). You cannot
get away with a passive terminator on the UDB (or any other machine
with a SCSI-II bus). If money is no object, go for the Granite Digital
cables/terminators (though that might be overkill for a UDB). :-)

|   Michael Champigny - Software Engineer  |   |   |   |   |   |   |   |
|        Alpha Business Segment CAD        | d | i | g | i | t | a | l |

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