Re: tlug: SCSI drive problem

[Craig Olinsky <Craig_Olinsky@example.com>]

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tlug note from Craig Olinsky <Craig_Olinsky@example.com>
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>   I've just connected a SCSI hard drive to the 2940W card I have.
> When I boot, the SCSI firmware reports the name, etc. of the hard
> drive, but doesn't seem to completely detect it:



> Oct  7 16:41:27 tangrending kernel: scsi0: Target 6, channel A, refusing
> WIDE negotiation; using 8 bit transfers.

>  Weirder and weirder.  I suspect this Mickey Mouse 95-vintage AST Bravo
> PC (Bravo, indeed) has a wonkey PCI and/or DMA controller, but I'm over
> my head here and not about to rush and buy another PC.

>  Any helpful thoughts out there?  I could sure use some.


This _may_ not apply here, but in my personal experience, all SCSI-related disk 
problems I have seen have been due to some sort of improper termination.  The 
biggest issues have been attempting to connect terminate a wide SCSI bus which 
contained one or more narrow SCSI devices (my motherboard's built-in 2940 only 
has a wide connector).

It appears from the log I quoted above, that the drive is some variety of narrow
SCSI... how is the chain connected?  Only the drive and the CD-ROM?  Is it on a 
wide or narrow bus off of the 2940, and what (if anything) is connected to the 
other bus?

Especially be careful to check if the drive is trying to auto-terminate.  I have
had best results with turning termination off on all devices and having a 
self-termination SCSI chain.

On the other hand, you could have an honest-to-deity driver issue.

(HTH)

Craig (Craig_Olinsky@example.com)
-----
- not speaking for intel


(BTW: I might try to make it down to the meeting, although I've been quite a 
lurker so I doubt anyone would recognize me...)

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