From owner-freebsd-current@FreeBSD.ORG Fri Aug 11 14:00:23 2006 Return-Path: X-Original-To: freebsd-current@FreeBSD.org Delivered-To: freebsd-current@FreeBSD.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 8214C16A4DE; Fri, 11 Aug 2006 14:00:23 +0000 (UTC) (envelope-from pjd@garage.freebsd.pl) Received: from mail.garage.freebsd.pl (arm132.internetdsl.tpnet.pl [83.17.198.132]) by mx1.FreeBSD.org (Postfix) with ESMTP id 2075F43D5A; Fri, 11 Aug 2006 14:00:15 +0000 (GMT) (envelope-from pjd@garage.freebsd.pl) Received: by mail.garage.freebsd.pl (Postfix, from userid 65534) id 798BD5138F; Fri, 11 Aug 2006 16:00:14 +0200 (CEST) Received: from localhost (pjd.wheel.pl [10.0.1.1]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.garage.freebsd.pl (Postfix) with ESMTP id 868A35133B; Fri, 11 Aug 2006 16:00:10 +0200 (CEST) Date: Fri, 11 Aug 2006 15:59:19 +0200 From: Pawel Jakub Dawidek To: Thomas Quinot Message-ID: <20060811135919.GB48792@garage.freebsd.pl> References: <20060808195202.GA1564@garage.freebsd.pl> <20060810184702.GA8567@nowhere> <20060810192841.GA1345@garage.freebsd.pl> <20060811135426.GA56740@melamine.cuivre.fr.eu.org> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="oC1+HKm2/end4ao3" Content-Disposition: inline In-Reply-To: <20060811135426.GA56740@melamine.cuivre.fr.eu.org> X-PGP-Key-URL: http://people.freebsd.org/~pjd/pjd.asc X-OS: FreeBSD 7.0-CURRENT i386 User-Agent: mutt-ng/devel-r804 (FreeBSD) X-Spam-Checker-Version: SpamAssassin 3.0.4 (2005-06-05) on mail.garage.freebsd.pl X-Spam-Level: X-Spam-Status: No, score=-5.9 required=3.0 tests=ALL_TRUSTED,BAYES_00 autolearn=ham version=3.0.4 Cc: freebsd-fs@FreeBSD.org, Craig Boston , freebsd-current@FreeBSD.org, freebsd-geom@FreeBSD.org Subject: Re: GJournal (hopefully) final patches. X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 11 Aug 2006 14:00:24 -0000 --oC1+HKm2/end4ao3 Content-Type: text/plain; charset=iso-8859-2 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Aug 11, 2006 at 03:54:26PM +0200, Thomas Quinot wrote: > * Pawel Jakub Dawidek, 2006-08-10 : >=20 > > I also added a flag for gmirror and graid3 which says "don't > > resynchronize components after a power failure - trust they are > > consistent". And they are always consistent when placed below gjournal. >=20 > That sounds a bit suprising; how does gjournal guarantee that a given > write has been committed to the two providers of a mirror? If the given write wasn't committed to all mirror components this bascially means, that we had a power failure and gjournal will not be clean, so it will be replayed or forgotten, leaving the data on mirror in a consistent state. --=20 Pawel Jakub Dawidek http://www.wheel.pl pjd@FreeBSD.org http://www.FreeBSD.org FreeBSD committer Am I Evil? Yes, I Am! --oC1+HKm2/end4ao3 Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (FreeBSD) iD8DBQFE3I03ForvXbEpPzQRAgfBAJ9rPoeM+bdZE+kSNGZzw25CZDgATgCcC5wX fQ9rrXN1ycltmfqLY1LmTSk= =ePCK -----END PGP SIGNATURE----- --oC1+HKm2/end4ao3--