[Gluster-devel] Best filesystem for exported directory?

[Hans Einar Gautun]

Rafael,
There is a couple of things to take into account. I've used xfs for a
while now, but xfs don't journal the file data, only metadata. If
something goes wrong before file close, i.e. glusterfs crashes, you have
a possibility of file corruption. ext3 in journal mode has journaling of
file data itself, making it more safe. 

In fact I've had several issues with xfs in general, and I'm converting
to ext3 both on laptops and glusterfs. For speed the figures on 3ware
sata controllers, 100 files of 1MB size I have up to 790MB/s on xfs,
360MB/s on ext3 locally. On the other hand you sleep well.... Also it
looks as ext3 in journal mode gives better response in reading from the
disk while writing to the same disk, up to 10 times! better.

Regards,
Einar

On Thu, 2008-01-10 at 01:24 +0530, Anand Avati wrote:
> Rafal,
>  The answer is hard to tell. You will have to take the same decision as you
> would, without glusterfs. ext3 is probably the best 'overall'. xfs or
> reiserfs would help if you have a LOT of small files in the same directory,
> etc. GlusterFS is agnostic to what filesystem is there below it, as long as
> it has a POSIX compatible syscall interface.
> 
> avati
> 
> 2008/1/9, Rafał Zawadzki <rafal.zawadzki at sensisoft.com>:
> >
> > Hello - I've got one question. What is best filesystem for exported
> > directory
> > (brick - option directory).
> >
> > Cheers,
> > --
> > Rafał Zawadzki
> > System Architect
> >
> > tel      +48 22 8430101
> > mobile        +48 600 883 759
> > skype id      blvszcz
> > jabber id     bluszcz at gmail.com
> >
> >
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> 
> 
> 
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-- 
Einar Gautun                     einar.gautun at statkart.no

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