From owner-freebsd-fs Thu Sep 21 7:57:39 2000 Delivered-To: freebsd-fs@freebsd.org Received: from fledge.watson.org (fledge.watson.org [204.156.12.50]) by hub.freebsd.org (Postfix) with ESMTP id 9344037B422 for ; Thu, 21 Sep 2000 07:57:37 -0700 (PDT) Received: from fledge.watson.org (robert@fledge.pr.watson.org [192.0.2.3]) by fledge.watson.org (8.9.3/8.9.3) with SMTP id KAA78308; Thu, 21 Sep 2000 10:57:34 -0400 (EDT) (envelope-from robert@fledge.watson.org) Date: Thu, 21 Sep 2000 10:57:34 -0400 (EDT) From: Robert Watson X-Sender: robert@fledge.watson.org To: Michael Aronsen Cc: "'fs@freebsd.org'" Subject: Re: Journaling Filesystems in bsd? In-Reply-To: <9164771DDCABD3118333005004E9446E204774@mother.netcentralen.dk> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-fs@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Thu, 21 Sep 2000, Michael Aronsen wrote: > Just wanted to know if there are any projects to get something > like reiserfs to FreeBSD? At the June, 2000 USENIX technical conference, a journalled implementation of the FFS file system for FreeBSD was described and used in a performance comparison with Softupdates. At the time, it was stated that this journalled implementation would be made available to the FreeBSD community, although a specific date was not set. If you're interested in the paper, it was by Margo Seltzer, Greg Ganger, Craig Soules, and Christopher Stein, and was entitled, ``Journaling Verses Soft Updates: Asynchronous Meta-data Protection in File Systems,'' and did a comprehensive analysis of the performance and safety implications of selecting various forms of file system meta-update protection (sync, async, softupdates, async journalling, sync journalling). As presumably Kirk would be the vehicle by which the journalling code would be incorporated in the base system, and he's currently on vacation, the practical answer is probably to sit tight until BSDCon when he surfaces again :-). Robert N M Watson robert@fledge.watson.org http://www.watson.org/~robert/ PGP key fingerprint: AF B5 5F FF A6 4A 79 37 ED 5F 55 E9 58 04 6A B1 TIS Labs at Network Associates, Safeport Network Services To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-fs" in the body of the message