"Native" journaling file systems?
olli at lurza.secnetix.de
Mon Dec 19 09:12:31 PST 2005
Svein Halvor Halvorsen <svein.h at lvor.halvorsen.cc> wrote:
> On 12/19/05, Justin Smith <jsmith at 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.
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
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
Oliver Fromme, secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing
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