Date: Mon, 19 Dec 2005 18:12:28 +0100 (CET) From: Oliver Fromme <olli@lurza.secnetix.de> To: freebsd-current@FreeBSD.ORG Subject: Re: "Native" journaling file systems? Message-ID: <200512191712.jBJHCS7A049137@lurza.secnetix.de> In-Reply-To: <bbe90d1d0512190747u52e40480mee0a67674b6b0823@mail.gmail.com>
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Svein Halvor Halvorsen <svein.h@lvor.halvorsen.cc> wrote: > On 12/19/05, Justin Smith <jsmith@drexel.edu> wrote: > > Are there any plans to develop UFS3--- i.e., a UFS2 file system with an > > added journal? > > Take a look at the gjournal system developed by Ivan Voras as a Google > Summer of Code project. I don't know how stable that is, but it's > probably worth a look. > > http://ivoras.sharanet.org/freebsd/gjournal.html It has one problem: After a crash, you cannot simply replay the journal in order to get the file system into a consistent state. You still have to run a full-blown fsck. That problem renders gjournal rather useless. > Also; Read-only XFS support was commited to 7.0 last week. Write > support is probably comming when the developer has time to write it. I would very much hope so (even though it is GPL so it can never replace UFS in FreeBSD). But write support is probably ten times more complex than read-only support, so that's a huge amount of work. I wouldn't hold my breath. Best regards Oliver -- Oliver Fromme, secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing Dienstleistungen mit Schwerpunkt FreeBSD: http://www.secnetix.de/bsd Any opinions expressed in this message may be personal to the author and may not necessarily reflect the opinions of secnetix in any way. "I started using PostgreSQL around a month ago, and the feeling is similar to the switch from Linux to FreeBSD in '96 -- 'wow!'." -- Oddbjorn Steffensen
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