From owner-freebsd-scsi Thu Aug 6 13:17:24 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id NAA18864 for freebsd-scsi-outgoing; Thu, 6 Aug 1998 13:17:24 -0700 (PDT) (envelope-from owner-freebsd-scsi@FreeBSD.ORG) Received: from hda.hda.com (hda-bicnet.bicnet.net [208.220.66.37]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id NAA18824 for ; Thu, 6 Aug 1998 13:17:09 -0700 (PDT) (envelope-from dufault@hda.hda.com) Received: (from dufault@localhost) by hda.hda.com (8.8.5/8.8.5) id QAA27828; Thu, 6 Aug 1998 16:14:27 -0400 (EDT) From: Peter Dufault Message-Id: <199808062014.QAA27828@hda.hda.com> Subject: Re: turning off error recovery In-Reply-To: <199808061830.LAA19074@silvia.hip.berkeley.edu> from Satoshi Asami at "Aug 6, 98 11:30:03 am" To: asami@cs.berkeley.edu (Satoshi Asami) Date: Thu, 6 Aug 1998 16:14:26 -0400 (EDT) Cc: scsi@FreeBSD.ORG X-Mailer: ELM [version 2.4ME+ PL25 (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 > Hi, > > How do I completely turn off error recovery on SCSI disks? I tried > "scsi -m" on my machine, there are AWRE and ARRE on page 1 that's set > to 1 and "read/write retry count" set to 8, will changing them to 0 > turn off all recovery attempts? What are you trying for? Your own data recovery or fast possibly bad data, e.g., video data off a raw partition? For fast bad data you want to set the RC (read continuous) bit. For roll-your-own recovery you want to clear AWRE and ARRE and clear TB (transfer block). > Oh, and how do I do it in CAM? I'm running -current of January 24 > vintage. Thanks. :) Last I heard the -v mode page editor was up and running. Peter -- Peter Dufault (dufault@hda.com) Realtime development, Machine control, HD Associates, Inc. Safety critical systems, Agency approval To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message