[Ocfs-users] copying files from ocfs to ext3

[David Sharples]

apologies, it is

ocfs-2.4.21-EL-smp-1.0.14-1, the old version was still there by accident.

Anyway, the 128K thing did the trick, copying speeds are great now.

Thanks

Dave


On 27/11/06, Sunil Mushran <Sunil.Mushran at oracle.com> wrote:
>
> ocfs-2.4.9-e-smp-1.0.12-1 is for AS2.1. Unsure how you can use that
> on a RHEL3 box.
>
> Other than that, ensure you have the latest coreutils.
>
> cp --o_direct=128K,0 /ocfs /ext3
> It will read in 128K chunks.
>
> Michael Aubertin wrote:
> > Hi David,
> >
> > It smell like some scsi driver congestion. First of all,
> >  you can try to set greater value (such 256) to both max and min
> readahead.
> > (see sysctl)
> > One idea could be to set the elevator to "deadline" or "as" if SAS
> drive(i.e: Kernel append).
> > Other could be to mount the ext3 with option such
> -o  reservation,noatime,nodiratime
> >
> >
> > Good luck
> >
> > Michael.
> > michael.aubertin at gmail.com
> >
> > Original message:
> > ---------------
> >
> >
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> >
> > Received:11/27/06 16:08
> > From:David Sharples <davidsharples at gmail.com>
> > To:ocfs-users at oss.oracle.com
> > Cc:
> > Subject:[Ocfs-users] copying files from ocfs to ext3
> >
> > Hi, using ocfs-2.4.9-e-smp-1.0.12-1 on Redhat 3 U4
> >
> > Trying to copy files from an ocfs volume to an ext3 volume is very very
> slow
> > - talking a couple of minutes for a 100Mb file.
> > same happens if I use o-direct or not, dd exhibits the same behaviour
> >
> > ocfs is in the updatedb.conf and both filesystems are in the PRUNEPATHS
> line
> > in the same file (a reboot was done after the changes were made just to
> make
> > sure)
> >
> > Coping from ocfs to ocfs is very quick as is copying from ext3 to ext3
> >
> > Any ideas where I can look?
> >
> > Thanks
> >
> > Dave
> >
> >
> > _______________________________________________
> > Ocfs-users mailing list
> > Ocfs-users at oss.oracle.com
> > http://oss.oracle.com/mailman/listinfo/ocfs-users
> >
>
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