[528] in linux-scsi channel archive
Re: PLEASE READ!! -- frustrating EISA-bus / SCSI-controller problems
daemon@ATHENA.MIT.EDU (Steven N. Hirsch)
Sat Aug 19 15:10:13 1995
Date: Sat, 19 Aug 1995 09:35:07 -0400 (EDT)
From: "Steven N. Hirsch" <hirsch@emba.uvm.edu>
To: Jarrett Redd <redd@pat.mdc.com>
Cc: linux-scsi@vger.rutgers.edu
In-Reply-To: <199508190519.AAA07715@pat.mdc.com>
On Sat, 19 Aug 1995, Jarrett Redd wrote:
> PLEASE!!! Can I bend everyone's ear for 5 minutes about a VERY PECULIAR
> situation with a particular DTC3292 controller problem? I am not a lazy,
> FAQ-asking person looking for an easy answer. I am an engineer with
> McDonnell-Douglas who has been struggling to install Linux on several machines.
> I have read EVERY SINGLE PIECE OF FAQ, HOWTO, README, etc. that I could find,
> and I have got it running on every machine except for one FRUSTRATING one!!
>
>
> jr> main board chip set is HiNT.
>
I think the above line is key to the problem. The HiNT chipset is a
highly non-standard EISA implementation which became notorious among OS/2
users for bizarre incompatibilities. Among other problems, it does not
support level-triggered interrupts nor watchdog NMI.
Also, if it were me I'd be suspicious of DTC's claim of Adaptec
compatibility. For starters, the 154x series of controllers are ISA-buss
architecture, and I believe you state that the DTC is an EISA adapter?
The Adaptec EISA adapters (174x and 274x) are quite different animals.
FWIW, you can find 274x controllers on the Usenet "for sale" groups at
fire sale prices. I have been happily running Linux on two machines for a
year with a 2742T and 2740A - no problems whatsoever.
Note that you must configure the 274x for edge-triggered interrupts!
This can be done with the latest version of the EISA cfg program.
Feel free to E-Mail if you have any further questions about the Adaptec
boards.
- Steve
____________________________________________________________________________
|Steven N. Hirsch "Anything worth doing is worth |
|University of Vermont overdoing.." - Hunter S. Thompson|
|Computer Science / EE |
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