From owner-freebsd-scsi Thu Apr 2 00:52:48 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id AAA00989 for freebsd-scsi-outgoing; Thu, 2 Apr 1998 00:52:48 -0800 (PST) (envelope-from owner-freebsd-scsi@FreeBSD.ORG) Received: from TomQNX.tomqnx.com (ott-pm6-16.comnet.ca [206.75.140.176]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id AAA00984 for ; Thu, 2 Apr 1998 00:52:46 -0800 (PST) (envelope-from tom@tomqnx.com) Received: by TomQNX.tomqnx.com (Smail3.2 #1) id m0yKfi9-00086WC; Thu, 2 Apr 1998 03:51:01 -0500 (EST) Message-Id: From: tom@tomqnx.com (Tom Torrance at home) Subject: Weird SCSI timeout problem To: freebsd-scsi@FreeBSD.ORG Date: Thu, 2 Apr 1998 03:51:01 -0500 (EST) X-Mailer: ELM [version 2.4ME+ PL31H (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-scsi@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Mar. 8/98 I reported problems with the trio of old HP drives I had installed on my Adaptec 2740A. They were basically "timed out in message out phase" and "timed out while idle" while the drives were VERY busy. Someone who was having similar problems advised me to remove the various AHC performance options. This did seem to eliminate the symptoms and some system performance as well. FYI: By reducing the maximum xfer rate for the problem drives by 20%, I have been able to re-enable all the AHC options with no problems experienced during the past couple of weeks. Regards, Tom To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message