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From: Peter Dufault <dufault@hda.com>
Message-Id: <199506061625.MAA17681@hda.com>
Subject: Re: Quantum hardware errors (Deferred Error: HARDWARE FAILURE asc:87,0)
To: imb@scgt.oz.au (michael butler)
Date: Tue, 6 Jun 1995 12:25:19 -0400 (EDT)
Cc: freebsd-hackers@freebsd.org
In-Reply-To: <199506061603.CAA02057@asstdc.scgt.oz.au> from "michael butler" at Jun 7, 95 02:03:44 am
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michael butler writes:
> 
> asstdc:~ # scsi -f /dev/rsd0.ctl -e -m 8
> 
>  [ .. attempt to edit said parameter .. ]
> 
> SCIOCCOMMAND ioctl: Command accepted.
> return status 3 (Sense Returned) host adapter status 2
> Command out (6 of 6):
> 15 00 00 00 10 00 
> 
> Data out (0 of 16):
> 
> Error code is "current errors"
> Segment number is 00
> Sense key is "Illegal request"
> The Information field is 00000000 (0).
> The Command Specific Information field is 00000000 (0).
> Additional sense code: 26
> Additional sense code qualifier: 00
> Illegal value in the parameter list.
> Bit 0 of byte 9 (value 00) is illegal.
> sense (32 of 48):
> f0 00 05 00 00 00 00 0a 00 00 00 00 26 00 00 88 
> 00 09 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
> 
The thing that is odd is that with a 4 byte mode page header this
would be byte 5 of the parameter page which is the low byte of the
"disable pre-fetch transfer length".  If it starts to
number from the parameters it is parameter byte 9 which is the low byte of
the maximum pre-fetch.

Can you edit the modes and write them out if you don't change anything?
If you can't we have a bigger problem with this drive.

Peter

-- 
Peter Dufault               Real Time Machine Control and Simulation
HD Associates, Inc.         Voice: 508 433 6936
dufault@hda.com             Fax:   508 433 5267