Robert, We use LVM snapshots but not on a production filesystem. It slows things down too much (kcopyd). Instead we mirror the production filesystem to the backup filesystem every night and perform snapshots on that. A modern kernel/distro (e.g. RHEL5) is required for stable snapshots. As Andreas said you can then use "tunefs.lustre --reformat --writeconf --fsname=NEWNAME" to rename the filesystems and mount them on the MDS and OSSs. Clients can then mount the snapshot filesystems.
Daire ----- "Robert LeBlanc" <[EMAIL PROTECTED]> wrote: > I know that Lustre is looking to use ZFS in the future, but has anyone > used > LVM with Lustre to perform snapshots? This would be helpful for us to > get a > consistent back-up of the filesystem on a daily basis. > > Thanks, > Robert > > Robert LeBlanc > College of Life Sciences Computer Support > Brigham Young University > [EMAIL PROTECTED] > (801)422-1882 > > > _______________________________________________ > Lustre-discuss mailing list > [email protected] > https://mail.clusterfs.com/mailman/listinfo/lustre-discuss _______________________________________________ Lustre-discuss mailing list [email protected] https://mail.clusterfs.com/mailman/listinfo/lustre-discuss
