From owner-freebsd-scsi Thu Dec 10 11:51:21 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id LAA06483 for freebsd-scsi-outgoing; Thu, 10 Dec 1998 11:51:21 -0800 (PST) (envelope-from owner-freebsd-scsi@FreeBSD.ORG) Received: from sax.sax.de (sax.sax.de [193.175.26.33]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id LAA06472 for ; Thu, 10 Dec 1998 11:51:16 -0800 (PST) (envelope-from j@uriah.heep.sax.de) Received: (from uucp@localhost) by sax.sax.de (8.8.8/8.8.8) with UUCP id UAA25173; Thu, 10 Dec 1998 20:51:03 +0100 (CET) (envelope-from j@uriah.heep.sax.de) Received: (from j@localhost) by uriah.heep.sax.de (8.9.1/8.9.1) id UAA00711; Thu, 10 Dec 1998 20:47:05 +0100 (MET) (envelope-from j) Message-ID: <19981210204704.28265@uriah.heep.sax.de> Date: Thu, 10 Dec 1998 20:47:04 +0100 From: J Wunsch To: freebsd-scsi@FreeBSD.ORG Cc: spork Subject: Re: options FAILSAFE Reply-To: Joerg Wunsch References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.88 In-Reply-To: ; from spork on Thu, Dec 10, 1998 at 11:51:13AM -0500 X-Phone: +49-351-2012 669 X-PGP-Fingerprint: DC 47 E6 E4 FF A6 E9 8F 93 21 E0 7D F9 12 D6 4E Sender: owner-freebsd-scsi@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org As spork wrote: > I've always wondered exactly what it does... Is it strictly a scsi thing > or does it touch other bits and pieces? LINT says it enables tag queueing > on the ncr. Does anyone know what else it does, and whether it does > anything if you're running CAM? It was intended to enable `most defensive' kernel parameters. It turned off tagged queuing in the NCR driver, since there used to be a number of disks like older HP drives that choked on tagged queuing even though they claimed to accept them. Since this is a show-stopper during installation, Stefan Esser once created this option. I don't remember it ever changing more than just this. I haven't read the CAM sources for the ncr driver, but would assume the option degraded to a no-op now. -- cheers, J"org joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message