Thankyou. I will try to recover them. I would have to wait for the weekend to do that because I can't afford to down a OST during work hours....
TIA On Wed, Mar 25, 2009 at 5:25 AM, Daire Byrne <[email protected]> wrote: > Mag, > > ----- "Mag Gam" <[email protected]> wrote: > >> To do the ll_recover_lost_found_objs, can we have everything mounted >> up? Or is it recommended we unmount everything? > > You only need to unmount the "damaged" OST and remount it with "-t ldiskfs". > >> Also what to do when we see ????? for the file attributes. Most >> likely >> these files are gone, how can we remove them from the system all >> together? > > You should still be able to delete them. This will delete the entry on the > MDS but the deletion of the missing object on the OST will just fail. You > should try recovering the lost+found objects first though. > > Daire > > >> On Wed, Mar 11, 2009 at 11:59 PM, Andreas Dilger <[email protected]> >> wrote: >> > On Mar 11, 2009 19:33 +0100, Reto Gantenbein wrote: >> >> We recently had a hardware defect on one of our storage arrays >> which >> >> broke the file system on this device. After running e2fsck on the >> file >> >> system, I was able to mount the device again as lustre file >> system. >> >> However, a lot of data was written into the lost+found. Now we have >> a >> >> problem, that the MDS however didn't recognize that these files >> are >> >> not available anymore and so still lists them. But then they are >> not >> >> accessible which results in a I/O-Error. >> > >> > If the objects are in lost+found on the OST then I'd suggest first >> > to use the "ll_recover_lost_found_objs" on the filesystem >> (unmounted >> > from Lustre, mounted locally as "-t ldiskfs"). This will recover a >> > majority of your objects (=file data). >> > >> > Cheers, Andreas >> > -- >> > Andreas Dilger >> > Sr. Staff Engineer, Lustre Group >> > Sun Microsystems of Canada, Inc. >> > >> > _______________________________________________ >> > Lustre-discuss mailing list >> > [email protected] >> > http://lists.lustre.org/mailman/listinfo/lustre-discuss >> > >> _______________________________________________ >> Lustre-discuss mailing list >> [email protected] >> http://lists.lustre.org/mailman/listinfo/lustre-discuss > _______________________________________________ Lustre-discuss mailing list [email protected] http://lists.lustre.org/mailman/listinfo/lustre-discuss
