[Lustre-discuss] Problems with failover

Jeremy Mann
Fri, 04 Jan 2008 15:56:52 -0000

On Thu, 2008-01-03 at 17:34 -0700, Andreas Dilger wrote:

> To be clear - Lustre failover has nothing to do with data replication.
> It is meant only as a mechanism to allow high-availability of shared
> disk.  This means - more than one node can serve shared disk from a
> SAN or multi-port FC/SCSI disks.
>
> You currently need another mechanism (hardware or software RAID) to
> provide data redundancy in case of disk failure.  We are working to
> provide data replication at the Lustre level, but that is not yet
> available.

Thank you Andreas, we were under the impression it was data replication
as well. We will have to redesign our filesystem based on this.


--
Jeremy Mann
jeremy at biochem.uthscsa.edu

University of Texas Health Science Center
Bioinformatics Core Facility
http://www.bioinformatics.uthscsa.edu
Phone: 210-567-2672