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From: "Rodney W. Grimes" <rgrimes@GndRsh.aac.dev.com>
Message-Id: <199603090718.XAA09638@GndRsh.aac.dev.com>
Subject: Re: NCR disk controller, hp disk
To: james@miller.cs.uwm.edu (Jim Lowe)
Date: Fri, 8 Mar 1996 23:18:02 -0800 (PST)
Cc: current@FreeBSD.org
In-Reply-To: <199603082239.QAA13075@miller.cs.uwm.edu> from "Jim Lowe" at Mar 8, 96 04:39:14 pm
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> 
> 
> I have an NCR 825 PCI disk controller.  I just attached a second disk
> to the controller and am trying to access it.  The second disk works
> just fine under dos, but not freebsd-current.  I am getting the following
> errors:
> 
> sd1(ncr0:1:0): ABORTED COMMAND asc:4e,0 Overlapped commands attempted
> , retries:4
> sd1(ncr0:1:0): ABORTED COMMAND asc:4e,0 Overlapped commands attempted
> , retries:3
> sd1(ncr0:1:0): ABORTED COMMAND asc:4e,0 Overlapped commands attempted
> , retries:2
> sd1(ncr0:1:0): ABORTED COMMAND asc:4e,0 Overlapped commands attempted
> , retries:1
> sd1(ncr0:1:0): ABORTED COMMAND asc:4e,0 Overlapped commands attempted
> , FAILURE
> sd1: error reading primary partition table reading fsbn 0 (sd1 bn 0; cn 0 tn 0 s
> n 0)
> 
> Any clues as to what to try/do next?  The boot up information follows.
> I am not sure why I am getting the probe0(ncr0:9:0) errors either.
> Termination?

It seems that the HP C37xx series of SCSI disks are being tickled by the
NCR scsi code in FreeBSD.  I can duplicate your problem here using the
model C3725 and either an NCR 53C810 or NCR 53C825.  I suggest you
switch to an aha2940, but you will probably have to backup/restore the
entire system to do this due to geometry translation differences.

We really need a SCSI expect to go rewrite the firmware for the NCR cards,
what we have today has so many incompatibility problems it is getting hard
to spec systes using it :-(.

> Thanks for any help,

Sorry, not much real help :-(.  Stephan Esser may have a list of things
you can turn off in the NCR code that gets it working...


> 	-Jim


-- 
Rod Grimes                                      rgrimes@gndrsh.aac.dev.com
Accurate Automation Company                 Reliable computers for FreeBSD