From owner-freebsd-hardware Thu Sep 20 14: 4:45 2001 Delivered-To: freebsd-hardware@freebsd.org Received: from pt-quorum.com (pt-quorum.com [209.10.167.210]) by hub.freebsd.org (Postfix) with ESMTP id 37A2337B40C for ; Thu, 20 Sep 2001 14:04:35 -0700 (PDT) Received: from gateway.bogus (unknown [213.30.47.84]) by pt-quorum.com (Postfix) with ESMTP id 3397FEC7F for ; Thu, 20 Sep 2001 22:06:10 +0100 (WEST) Received: by gateway.bogus (Postfix, from userid 1000) id 95B915D6B; Thu, 20 Sep 2001 22:04:52 +0100 (WEST) Date: Thu, 20 Sep 2001 22:04:52 +0100 From: Nuno Teixeira To: freebsd-hardware@freebsd.org Subject: hw.ata.wc && hw.ata.tags && softupdates short question Message-ID: <20010920220452.F7820@gateway.bogus> Mail-Followup-To: Nuno Teixeira , freebsd-hardware@freebsd.org Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit User-Agent: Mutt/1.2.5i X-Operating-System: FreeBSD 4.4-STABLE Sender: owner-freebsd-hardware@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org Hello to all, I have searched for the experimental hw.ata.tags that work on IDE IBM DTLA and DPLA disks. For what I heard, I concluded that we shouldn't use softupdates with write cache turned on. The first time that I tried this I loose a lot of work due to a power failure. Since then I'm using softupdates with hw.ata.wc="0". Since I have a IBM DTLA disk that supports hw.ata.tags, I want to make the following questions: 1. Can I use softupdates with hw.ata.wc="1" and hw.ata.tags="1" safely? 2. Does hw.ata.tags="1" "allows write caching to be safely turned on really? Thanks very much, -- -- Nuno Teixeira Dir. Técnico pt-quorum.com -- PGP Public Key: http://www.pt-quorum.com/pgp/nunoteixeira.asc Key fingerprint: 8C2C B364 D4DC 0C92 56F5 CE6F 8F07 720A 63A0 4FC7 -- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message