From owner-freebsd-questions@FreeBSD.ORG Thu May 11 12:00:09 2006 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 5A83A16A57E for ; Thu, 11 May 2006 12:00:09 +0000 (UTC) (envelope-from arsptr@optusnet.com.au) Received: from mail25.syd.optusnet.com.au (mail25.syd.optusnet.com.au [211.29.133.166]) by mx1.FreeBSD.org (Postfix) with ESMTP id 1D4CD43D49 for ; Thu, 11 May 2006 11:59:57 +0000 (GMT) (envelope-from arsptr@optusnet.com.au) Received: from [192.168.1.4] (c211-30-182-34.rivrw1.nsw.optusnet.com.au [211.30.182.34]) by mail25.syd.optusnet.com.au (8.12.11/8.12.11) with ESMTP id k4BBxsBX011818 (version=TLSv1/SSLv3 cipher=RC4-SHA bits=128 verify=NO); Thu, 11 May 2006 21:59:54 +1000 In-Reply-To: <20060511105934.76e4dad7@localhost> References: <3655B84C-03FA-454B-A601-72DCEE8AE4E7@optusnet.com.au> <20060511105934.76e4dad7@localhost> Mime-Version: 1.0 (Apple Message framework v749.3) Content-Type: multipart/signed; protocol="application/pgp-signature"; micalg=pgp-sha1; boundary="Apple-Mail-1--609618072" Message-Id: Content-Transfer-Encoding: 7bit From: Alastair Rankine Date: Thu, 11 May 2006 21:59:49 +1000 To: Norberto Meijome X-Pgp-Agent: GPGMail 1.1.1 (Tiger) X-Gpgmail-State: signed X-Mailer: Apple Mail (2.749.3) Cc: freebsd-questions@freebsd.org Subject: Re: Filesystem corruption when drives are mirrored, but not otherwise X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 11 May 2006 12:00:52 -0000 This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --Apple-Mail-1--609618072 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed On 11/05/2006, at 10:59 AM, Norberto Meijome wrote: > On Wed, 10 May 2006 22:45:10 +1000 > Alastair Rankine wrote: > >> Disabling write >> caching seems to have fixed the problem. > > excuse my ignorance, but where do you do this? BIOS? Set hw.ata.wc="0" in /boot/loader.conf See tuning(7) for more info. > I'm running GEOM mirrors on amd64 with SATA (I assume you mean PATA > when you > say ATA). Nope, I'm using SATA on a Promise FastTrak S150 TX2plus. What controller are you using? Do you get a decent write speed? cstream -o tmpfile -v 1 -n 384m -i - ... is a good benchmark for sequential writes (cstream is in the ports). --Apple-Mail-1--609618072 content-type: application/pgp-signature; x-mac-type=70674453; name=PGP.sig content-description: This is a digitally signed message part content-disposition: inline; filename=PGP.sig content-transfer-encoding: 7bit -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.3 (Darwin) iEYEARECAAYFAkRjJzkACgkQ9jqa2eRLIceSGQCfaIJNRet4+WLflg+Mf9sXTGGv zVcAnRe8QMv83ymfhtXSNr7Ou2K7qXgS =wr34 -----END PGP SIGNATURE----- --Apple-Mail-1--609618072--