From owner-freebsd-scsi  Tue May 28 22:46:04 1996
Return-Path: owner-freebsd-scsi
Received: (from root@localhost)
          by freefall.freebsd.org (8.7.5/8.7.3) id WAA07972
          for freebsd-scsi-outgoing; Tue, 28 May 1996 22:46:04 -0700 (PDT)
Received: from mail.think.com (Mail1.Think.COM [131.239.33.245])
          by freefall.freebsd.org (8.7.5/8.7.3) with SMTP id WAA07967
          for <scsi@freebsd.org>; Tue, 28 May 1996 22:46:02 -0700 (PDT)
Received: from Early-Bird-1.Think.COM by mail.think.com; Wed, 29 May 96 01:45:49 -0400
Received: from compound.Think.COM (fergus-28.dialup.prtel.com) by Early-Bird.Think.COM; Wed, 29 May 96 01:45:47 EDT
Received: (from alk@localhost) by compound.Think.COM (8.7.5/8.7.3) id AAA01176; Wed, 29 May 1996 00:45:30 -0500 (CDT)
Date: Wed, 29 May 1996 00:45:30 -0500 (CDT)
Message-Id: <199605290545.AAA01176@compound.Think.COM>
From: Tony Kimball <alk@Think.COM>
To: scsi@freebsd.org
Subject: ncr scsi Qs
Sender: owner-freebsd-scsi@freebsd.org
X-Loop: FreeBSD.org
Precedence: bulk


Since switching from an Adaptec 1542CF ISA to a CSC NCR PCI scsi
controller, my ancient Micropolis drive has been filling my logs
with this stuff:

May 28 23:25:36 compound /kernel: sd1(ncr0:2:0): RECOVERED ERROR info:1857e6 asc:3,0 Peripheral device write fault
May 28 23:25:36 compound /kernel: , retries:4
May 28 23:25:36 compound /kernel: sd1(ncr0:2:0): extraneous data discarded.
May 28 23:25:36 compound /kernel: sd1(ncr0:2:0): COMMAND FAILED (9 0) @f10d3400.
May 28 23:30:09 compound /kernel: sd1(ncr0:2:0): RECOVERED ERROR info:1b6aa5 asc:3,0 Peripheral device write fault
May 28 23:30:09 compound /kernel: , retries:4

Is this a familiar problem for anyone?  I had the adaptec turned down
to 8MB/sec in order to accomodate this drive.  Is there any way to
throttle back the scsi bus xfers on the ncr controller?