From owner-freebsd-current Mon Dec 10 6:10:30 2001 Delivered-To: freebsd-current@freebsd.org Received: from avocet.prod.itd.earthlink.net (avocet.mail.pas.earthlink.net [207.217.120.50]) by hub.freebsd.org (Postfix) with ESMTP id 457F737B405 for ; Mon, 10 Dec 2001 06:10:26 -0800 (PST) Received: from pool0062.cvx22-bradley.dialup.earthlink.net ([209.179.198.62] helo=mindspring.com) by avocet.prod.itd.earthlink.net with esmtp (Exim 3.33 #1) id 16DR8R-0002p7-00; Mon, 10 Dec 2001 06:10:23 -0800 Message-ID: <3C14C256.549553DD@mindspring.com> Date: Mon, 10 Dec 2001 06:10:30 -0800 From: Terry Lambert X-Mailer: Mozilla 4.7 [en]C-CCK-MCD {Sony} (Win98; U) X-Accept-Language: en MIME-Version: 1.0 To: Joerg Wunsch Cc: freebsd-current@FreeBSD.ORG Subject: Re: cvs commit: src/sys/kern subr_diskmbr.c References: <20011209102129.F97235@uriah.heep.sax.de> <20011210004350.6703C3810@overcee.netplex.com.au> <200112092200.fB9M0J660085@uriah.heep.sax.de> <20011210005928.9538A3810@overcee.netplex.com.au> <20011210091103.M97235@uriah.heep.sax.de> <3C1488CF.410BE633@mindspring.com> <20011210142011.A75760@uriah.heep.sax.de> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Joerg Wunsch wrote: > > I guarantee you that there are a number of controllers which have > > different ideas of how to do soft sector sparing _at the controller > > level_ rather than at the drive level. > > We have dropped support for ESDI controllers long since. :-) > > Seriously, all the disks we are supporting these days do bad block > replacement at the drive level. Adaptec 1742 is supported, though it took a long enough time to find its way into CAM. Same for the NCR 810. For certain applications, also, you _want_ to turn off the automatic bad sector sparing: it's incompatible with spindle sync, for example, where you want to spare all drives or none, so that the spindles don't desyncronize on a sparing hit for one drive, but not another. -- Terry To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message