Date: Sat, 7 Jul 2001 13:24:58 +0930 From: Greg Lehey <grog@FreeBSD.org> To: Antony T Curtis <antony@abacus.co.uk> Cc: freebsd-stable@FreeBSD.ORG Subject: Re: JFS (was: The FreeBSD core team needs your help) Message-ID: <20010707132458.D75626@wantadilla.lemis.com> In-Reply-To: <3B459395.120DFE27@abacus.co.uk>; from antony@abacus.co.uk on Fri, Jul 06, 2001 at 11:31:49AM %2B0100 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>
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On Friday, 6 July 2001 at 11:31:49 +0100, Antony T Curtis wrote: > Greg Lehey wrote: >> >> On Wednesday, 4 July 2001 at 11:38:08 +0100, Antony T Curtis wrote: >>> Greg Lehey wrote: >>>> >>>> On Tuesday, 12 June 2001 at 19:22:45 +0200, Steve O'Hara-Smith wrote: >>>>> On Tue, 12 Jun 2001 12:09:58 +0100 >>>>> Josef Karthauser <joe@tao.org.uk> wrote: >>>>> >>>>>> On Fri, Jun 08, 2001 at 08:32:23AM -0700, Eric Parusel wrote: >>>>>>>>> A journalling FS for those people who just hate waiting for a >>>>>>> couple >>>>>>>>> of >>>>>>>>> TB of slow disks to fsck? >>>>>>>> >>>>>>>> Does ReiserFS work with FreeBSD? >>>>>>> >>>>>>>> From what I've read, XFS is quite good as well.... (Whether or no= t it >>>>>>> could ever work with *BSD, I don't know) >>>>>> >>>>>> Apparently XFS would run better on FreeBSD than on Linux, from what >>>>> >>>>> Whatever happened to the open source release of JFS, or is JFS = really >>>>> bad ? >>>> >>>> The open source version of JFS was based on OS/2, not AIX. It's not >>>> an overly good fit to UNIX. >>> >>> That was only because AIX's JFS implementation was so closely bound into >>> their kernel that there was no easy way to "port" it out of it. Also, >>> AFAIK, it was written in a mesh of different languages too, including >>> POWER architecture assembly. >>> >>> The OS/2 version was the first clean implementation to plug into OS/2's >>> IFS driver model - and being written in C, it is much more 'portable'. >>> (AFAIK, it was supposed to be able to be recompiled for OS/2 for CHRP >>> PowerPC) >> >> 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 Yes, that's the one. > or will there be a backport to AIX4.3? I haven't heard of that. That doesn't mean it won't happen. >>> 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. I think so. >>>> =01unix soit qui mal y pense >> >> You're aware that the original word of this phrase, "hon(n)i", means >> "ashamed"? > > I didn't have a clue... My sig has a different fortune for every email. Ah. What's the ^A character for? 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
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