From owner-freebsd-stable Sat Jul 7 0: 3: 6 2001 Delivered-To: freebsd-stable@freebsd.org Received: from wantadilla.lemis.com (wantadilla.lemis.com [192.109.197.80]) by hub.freebsd.org (Postfix) with ESMTP id C09C037B406 for ; Sat, 7 Jul 2001 00:02:55 -0700 (PDT) (envelope-from grog@lemis.com) Received: by wantadilla.lemis.com (Postfix, from userid 1004) id 4596D6ACCA; Sat, 7 Jul 2001 13:26:20 +0930 (CST) Date: Sat, 7 Jul 2001 13:26:20 +0930 From: Greg Lehey To: Jonathan Fosburgh Cc: Antony T Curtis , freebsd-stable@FreeBSD.ORG Subject: Re: JFS (was: The FreeBSD core team needs your help) Message-ID: <20010707132620.E75626@wantadilla.lemis.com> References: <20010608134705.19635.qmail@web14701.mail.yahoo.com> <004001c0f030$36a0d3e0$0600020a@frontend> <20010612120958.G10614@tao.org.uk> <20010612192245.4ce69cf3.steveo@eircom.net> <20010613102151.G5486@wantadilla.lemis.com> <3B42F210.C49FCED8@abacus.co.uk> <20010705090711.D371@sydney.worldwide.lemis.com> <3B459395.120DFE27@abacus.co.uk> <5.1.0.14.0.20010706073728.00a63ec0@mail.hal-pc.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <5.1.0.14.0.20010706073728.00a63ec0@mail.hal-pc.org>; from syjef@hal-pc.org on Fri, Jul 06, 2001 at 07:46:42AM -0500 Organization: The FreeBSD Project Phone: +61-8-8388-8286 Fax: +61-8-8388-8725 Mobile: +61-418-838-708 WWW-Home-Page: http://www.FreeBSD.org/ X-PGP-Fingerprint: 6B 7B C3 8C 61 CD 54 AF 13 24 52 F8 6D A4 95 EF Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Friday, 6 July 2001 at 7:46:42 -0500, Jonathan Fosburgh wrote: > At 11:31 AM 7/6/01 +0100, Antony T Curtis wrote: > > > >>> Since writing that (quite some time ago, IIRC) I have joined IBM and >>> am now working with the people who did the JFS port. They >>> substantially confirm your viewpoint, with the added information that >>> the "old" JFS, now called JFS 1, is being phased out under AIX, and >>> the "new" AIX JFS, JFS 2, is based on the same code base as the OS/2 >>> port. With that background, IBM's approach makes a lot more sense. >>> It's a pity that this issue wasn't clarified earlier. >> >> Is it JFS2 in AIX5L or will there be a backport to AIX4.3? >> >>>> All said, I would be interested in a JFS port for FreeBSD .... >>> >>> I'm going to be doing a lot of work on JFS in the next few months. I >>> don't think I'll port it to FreeBSD, but I'll be available for >>> questions, and I'll have a better understanding. >> >> Sounds great... I wonder if they'd accept back in diffs. >> >>>>> unix soit qui mal y pense >>> >>> You're aware that the original word of this phrase, "hon(n)i", means >>> "ashamed"? >> > > I sent an email about this when the thread first appeared, but perhaps not > everyone saw it. I can confirm what Greg said earlier about JFS2 being > derived from OS/2's version of JFS. This information came from Share in > Long Beach's UserBlue forum. There was a session about future trends in > JFS presented by one of IBM's JFS developers. JFS2 was developed as part > of Project Monterey and is actually ported to AIX5L on pSeries. Due to the > large number of changes, it is not being backported to 4.3.3. (This next > bit may not be entirely correct as I am reconstructing from memory > something that I saw in February.) Even in AIX5L, JFS1 is still shipped, > because JFS2 works in 64 bit mode only. If a system is installed as 32 > bit, then you get JFS1. It may be possible to take the older OS/2 version > and port it over to FreeBSD, but I am not sure about the ability to run it > on 32 bit intel systems. Perhaps Greg will have more to offer on > this. I think "will" is the correct statement. I certainly don't at the moment, but I'm sure I'll have more info as I gain experience. Greg -- See complete headers for address and phone numbers To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message