Date: Thu, 5 Jul 2001 09:07:11 -0500 From: Greg Lehey <grog@FreeBSD.org> To: Antony T Curtis <antony@abacus.co.uk> Cc: "Steve O'Hara-Smith" <steveo@eircom.net>, Josef Karthauser <joe@tao.org.uk>, lists@globalrelay.net, freebsd-stable@FreeBSD.org Subject: Re: JFS (was: The FreeBSD core team needs your help) Message-ID: <20010705090711.D371@sydney.worldwide.lemis.com> In-Reply-To: <3B42F210.C49FCED8@abacus.co.uk>; from antony@abacus.co.uk on Wed, Jul 04, 2001 at 11:38:08AM %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>
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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 not = 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 re= ally >>> 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. > 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. >> =01unix soit qui mal y pense You're aware that the original word of this phrase, "hon(n)i", means "ashamed"? 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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