From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263795AbUG1VBA (ORCPT ); Wed, 28 Jul 2004 17:01:00 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263847AbUG1VBA (ORCPT ); Wed, 28 Jul 2004 17:01:00 -0400 Received: from moraine.clusterfs.com ([66.246.132.190]:45982 "EHLO moraine.clusterfs.com") by vger.kernel.org with ESMTP id S263795AbUG1VAW (ORCPT ); Wed, 28 Jul 2004 17:00:22 -0400 Date: Wed, 28 Jul 2004 17:00:16 -0400 From: Andreas Dilger To: Tigran Aivazian Cc: Andrew Morton , linux-kernel@vger.kernel.org Subject: Re: ext3 and SPEC SFS Run rules. Message-ID: <20040728210016.GA1439@schnapps.adilger.int> Mail-Followup-To: Tigran Aivazian , Andrew Morton , linux-kernel@vger.kernel.org References: Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="Y46NoIcKQuicSz3X" Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.1i X-GPG-Key: 1024D/0D35BED6 X-GPG-Fingerprint: 7A37 5D79 BF1B CECA D44F 8A29 A488 39F5 0D35 BED6 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org --Y46NoIcKQuicSz3X Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Jul 26, 2004 10:18 +0100, Tigran Aivazian wrote: > I think the important part of rule 1. saying "server adheres to the=20 > protocol" is this bit from rfc1813: >=20 > The following data modifying procedures are > synchronous: WRITE (with stable flag set to FILE_SYNC), CREATE, > MKDIR, SYMLINK, MKNOD, REMOVE, RMDIR, RENAME, LINK, and COMMIT. >=20 > E.g. if a client had a successful SYMLINK and the server crashed, the=20 > client is not going to discover on the next reboot (of the server) that= =20 > the symlink is somehow disappeared... Just an FYI - if you are running a heavy sync load like a sync NFS server you may want to consider running a large external journal for performance. This means your journal data writes are always sequential and to a different disk than the main filesystem. Cheers, Andreas -- Andreas Dilger http://sourceforge.net/projects/ext2resize/ http://members.shaw.ca/adilger/ http://members.shaw.ca/golinux/ --Y46NoIcKQuicSz3X Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.3 (GNU/Linux) iD8DBQFBCBPgpIg59Q01vtYRAoa+AKCIaNW6E+VjBcEaZ0VTGWsbBBrteQCdFCWO yFNuirtvGSdagDkwq8mDjW0= =a6hk -----END PGP SIGNATURE----- --Y46NoIcKQuicSz3X--