Date: Fri, 11 Aug 2006 15:59:19 +0200 From: Pawel Jakub Dawidek <pjd@FreeBSD.org> To: Thomas Quinot <thomas@FreeBSD.ORG> Cc: freebsd-fs@FreeBSD.org, Craig Boston <craig@xfoil.gank.org>, freebsd-current@FreeBSD.org, freebsd-geom@FreeBSD.org Subject: Re: GJournal (hopefully) final patches. Message-ID: <20060811135919.GB48792@garage.freebsd.pl> In-Reply-To: <20060811135426.GA56740@melamine.cuivre.fr.eu.org> References: <20060808195202.GA1564@garage.freebsd.pl> <20060810184702.GA8567@nowhere> <20060810192841.GA1345@garage.freebsd.pl> <20060811135426.GA56740@melamine.cuivre.fr.eu.org>
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--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--
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