From owner-freebsd-questions@FreeBSD.ORG Wed Apr 16 20:30:15 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 06EE01065673 for ; Wed, 16 Apr 2008 20:30:15 +0000 (UTC) (envelope-from freebsd-questions@m.gmane.org) Received: from ciao.gmane.org (main.gmane.org [80.91.229.2]) by mx1.freebsd.org (Postfix) with ESMTP id 839F28FC0A for ; Wed, 16 Apr 2008 20:30:14 +0000 (UTC) (envelope-from freebsd-questions@m.gmane.org) Received: from list by ciao.gmane.org with local (Exim 4.43) id 1JmEGi-00031g-Kr for freebsd-questions@freebsd.org; Wed, 16 Apr 2008 20:30:12 +0000 Received: from 78-0-75-212.adsl.net.t-com.hr ([78.0.75.212]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 16 Apr 2008 20:30:12 +0000 Received: from ivoras by 78-0-75-212.adsl.net.t-com.hr with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 16 Apr 2008 20:30:12 +0000 X-Injected-Via-Gmane: http://gmane.org/ To: freebsd-questions@freebsd.org From: Ivan Voras Date: Wed, 16 Apr 2008 22:30:02 +0200 Lines: 49 Message-ID: References: <832841.44970.qm@web57004.mail.re3.yahoo.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enigA265539986AEDD0A43876096" X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: 78-0-75-212.adsl.net.t-com.hr User-Agent: Thunderbird 2.0.0.12 (Windows/20080213) In-Reply-To: <832841.44970.qm@web57004.mail.re3.yahoo.com> X-Enigmail-Version: 0.95.6 Sender: news Subject: Re: UFS2 Journaling implementation detail 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: Wed, 16 Apr 2008 20:30:15 -0000 This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigA265539986AEDD0A43876096 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable Unga wrote: > Hi all >=20 > I'm looking for papers or documentation covering > details of the UFS2 Journaling implementation of the > FreeBSD. >=20 > Please give me links to them if you guys know any. >=20 > Many thanks in advance. There's no such thing as UFS2 Journalling in FreeBSD (yet). There's=20 "gjournal" which is journaling on the data layer (below the file system, = and only with very limited integration with the file system). This=20 implementation is not documented (except for usage here:=20 http://www.freebsd.org/cgi/man.cgi?query=3Dgjournal&manpath=3DFreeBSD+7.0= -RELEASE),=20 but there's a small (and very old) high-level overview in my proposal on = which the current gjournal is based, here:=20 http://wiki.freebsd.org/gjournal_proposal . Ignore the bits about=20 "delay-commit". See also here:=20 http://docs.freebsd.org/cgi/getmsg.cgi?fetch=3D3624+0+/usr/local/www/db/t= ext/2006/freebsd-geom/20060625.freebsd-geom --------------enigA265539986AEDD0A43876096 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.5 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFIBmHKldnAQVacBcgRAk6UAJ95NrN0k/rFg2a9AkCoHilIcXLtjgCfVwxK q6aKP0Zn4H2XMlzD5H0Vdh8= =3nXw -----END PGP SIGNATURE----- --------------enigA265539986AEDD0A43876096--