From owner-freebsd-questions@FreeBSD.ORG Mon Jun 30 17:43:35 2008 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id C4E1E1065678 for ; Mon, 30 Jun 2008 17:43:35 +0000 (UTC) (envelope-from rsmith@xs4all.nl) Received: from smtp-vbr9.xs4all.nl (smtp-vbr9.xs4all.nl [194.109.24.29]) by mx1.freebsd.org (Postfix) with ESMTP id 57FF48FC1A for ; Mon, 30 Jun 2008 17:43:35 +0000 (UTC) (envelope-from rsmith@xs4all.nl) Received: from slackbox.xs4all.nl (slackbox.xs4all.nl [213.84.242.160]) by smtp-vbr9.xs4all.nl (8.13.8/8.13.8) with ESMTP id m5UHhW6F007726; Mon, 30 Jun 2008 19:43:33 +0200 (CEST) (envelope-from rsmith@xs4all.nl) Received: by slackbox.xs4all.nl (Postfix, from userid 1001) id 93F87BAA7; Mon, 30 Jun 2008 19:43:32 +0200 (CEST) Date: Mon, 30 Jun 2008 19:43:32 +0200 From: Roland Smith To: Wojciech Puchar Message-ID: <20080630174332.GD65282@slackbox.xs4all.nl> References: <80f4f2b20806300401x71483882x8e9a6cf919f1ff9@mail.gmail.com> <20080630073059.be11304d.wmoran@potentialtech.com> <80f4f2b20806300930p67ca1fd5xf9ad59d16889df36@mail.gmail.com> <20080630170400.GB65282@slackbox.xs4all.nl> <20080630190511.I7633@wojtek.tensor.gdynia.pl> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="rqzD5py0kzyFAOWN" Content-Disposition: inline In-Reply-To: <20080630190511.I7633@wojtek.tensor.gdynia.pl> X-GPG-Fingerprint: 1A2B 477F 9970 BA3C 2914 B7CE 1277 EFB0 C321 A725 X-GPG-Key: http://www.xs4all.nl/~rsmith/pubkey.txt X-GPG-Notice: If this message is not signed, don't assume I sent it! User-Agent: Mutt/1.5.18 (2008-05-17) X-Virus-Scanned: by XS4ALL Virus Scanner Cc: Jim , freebsd-questions@freebsd.org Subject: Re: filesystem information 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: Mon, 30 Jun 2008 17:43:35 -0000 --rqzD5py0kzyFAOWN Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Jun 30, 2008 at 07:05:51PM +0200, Wojciech Puchar wrote: > > Ans set 'hw.ata.wc=3D"0"' in /boot/loader.conf to stop the drives from > > caching writes. >=20 > it will GREATLY reduce write performance. not just a bit, but many times. Of course. And mounting filesystems with sync will also reduce performance. But if you have frequent outages and without a UPS they will at least help shorten fsck times and lessen potential data loss. Roland --=20 R.F.Smith http://www.xs4all.nl/~rsmith/ [plain text _non-HTML_ PGP/GnuPG encrypted/signed email much appreciated] pgp: 1A2B 477F 9970 BA3C 2914 B7CE 1277 EFB0 C321 A725 (KeyID: C321A725) --rqzD5py0kzyFAOWN Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (FreeBSD) iEYEARECAAYFAkhpG0QACgkQEnfvsMMhpyX4jwCfVepfCjBW3U4f9aEn7orq73Qw FZYAnAsE3MM1a6eLef8HZHoWI16+IvB8 =G+xd -----END PGP SIGNATURE----- --rqzD5py0kzyFAOWN--