[Lustre-discuss] HLRN lustre breakdown

Bernd Schubert bs at q-leap.de
Wed Aug 20 10:12:10 PDT 2008


Oh damn, I'm always afraid of silent data corruptions due to bad harddisks. We 
also already had this issue, fortunately we found this disk before taking the 
system into production.

Will lustre-2.0 use the ZFS checksum feature?


Thanks,
Bernd

On Wednesday 20 August 2008 19:08:34 Peter Jones wrote:
> Hi there
>
> I got the following background information from Juergen Kreuels at SGI
>
> "It turned out that a bad disk ( which did NOT report itself as being
> bad ) killed the lustre leading to data corruption due to inode areas on
> that disk.
> It was finally decided to remake the whole FS and only during that
> action we finally ( after nearly 48 h ) found that bad drive.
>
> It had nothing to do with the lustre FS itself. Lustre had been the
> victim of a HW failure on a Raid6 lun."
>
> I hope that this helps
>
> PJones
>
> Heiko Schroeter wrote:
> > Hello list,
> >
> > does anyone has more background infos of what happened there ?
> >
> > Regards
> > Heiko
> >
> >
> >
> >
> > HLRN News
> > ---------
> >
> >
> > Since Mon Aug 18, 2008 12:00 HLRN-II complex Berlin is open for users,
> > again.
> >
> > During the maintenance it turned out that the Lustre file system holding
> > the users $WORK and $TMPDIR was damaged completely.
> > The file system had to be reconstructed from scratch. All user data in
> > $WORK are lost.
> >
> > We hope that this event remains an exception. SGI apologizes for this
> > event.
> >
> > /Bka
> >
> > ========================================================================
> > This is an announcement for all HLRN Users
> > _______________________________________________
> > Lustre-discuss mailing list
> > Lustre-discuss at lists.lustre.org
> > http://lists.lustre.org/mailman/listinfo/lustre-discuss
>
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-- 
Bernd Schubert
Q-Leap Networks GmbH



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