From owner-freebsd-stable Tue Jul 24 7:46:33 2001 Delivered-To: freebsd-stable@freebsd.org Received: from smtp1.sentex.ca (smtp1.sentex.ca [199.212.134.4]) by hub.freebsd.org (Postfix) with ESMTP id 47D0B37B401 for ; Tue, 24 Jul 2001 07:46:29 -0700 (PDT) (envelope-from mike@sentex.net) Received: from simoeon.sentex.net (simeon.sentex.ca [209.112.4.47]) by smtp1.sentex.ca (8.11.2/8.11.1) with ESMTP id f6OEkJr75950; Tue, 24 Jul 2001 10:46:19 -0400 (EDT) (envelope-from mike@sentex.net) Message-Id: <5.1.0.14.0.20010724103842.064dde20@marble.sentex.ca> X-Sender: mdtpop@marble.sentex.ca X-Mailer: QUALCOMM Windows Eudora Version 5.1 Date: Tue, 24 Jul 2001 10:40:26 -0400 To: Sung Nae Cho , From: Mike Tancsa Subject: Re: Regarding hw.ata.wc="1"...... In-Reply-To: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG It depends what version of FreeBSD you are running and what risks you want to take. Yes, writes will be faster with write caching enabled. However, its that much more risky incase of power loss. sysctl -a | grep ata will tell you what it currently is. 4.3R had it disabled by default. However, it was turned back on as a default a little later. adding hw.ata.wc=1 to /boot/loader.conf will turn it on the next time you reboot. ---Mike At 10:39 AM 7/24/01 -0400, Sung Nae Cho wrote: >Hi, > >Everyone is telling me to enable the disk write caching if I have a UDMA >supporting hard disk. According to the man, FreeBSD enables this function >by default! Or is the man page wrong? Do "man ata" and read the page. >It's enabled by default! > > >Sung > > >To Unsubscribe: send mail to majordomo@FreeBSD.org >with "unsubscribe freebsd-stable" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message