I would check if the file list generated by find contains those remaining (after migration) files. If yes, then there is a chance that those files were changed during migration and checksum didn't match thus they were not migrated. Also there is a chance that the migration script has a problem with parsing names of some files thus fails to transfer them. I guess you could do some debugging of the migration process and narrow down the problem.
Best regards Wojciech On 27 June 2011 14:37, Bob Ball <[email protected]> wrote: > I had the same issue with Lustre 1.8.4. Wash, rinse, repeat.... In > other words, do the lfs_find, do the lfs_migrate, then do the find a > second time. That seemed to catch most everything of importance. I > haven't a clue why this should be the case, but it was true on every OST > that I migrated last fall. > > bob > > On 6/27/2011 6:50 AM, Thomas Roth wrote: > > Hi all, > > > > I am currently moving off files of a number of OSTs - some in a machine > with a predicted hardware > > failure, some for decommissioning old hardware etc. I'm deactivating the > OSTs on the MDS, then "lfs > > find --obd OSTXXXX_UUID /dir" to create a list of file to migrate. > > When finished, the OST partitions are still up to 14% full! Mounting as > ldiskfs, I can inspect the > > data in O/0/d??, which all seem to be valid files, text files readable, > ownership and atimes > > meaningfull etc. > > Since these OSTs have been deactivated on the clients also, nobody has > complained about missing files > > - although this could just mean that our users keep Terabytes of old junk > they don't access any more. > > So I wonder where these files belong to or why they are not missing. > There were no severe crashes of > > the system in the recent past which could have caused major memory loss > of the MDT. > > Something to worry about? Global lfs_check necessary? > > > > Perhaps I will do some "du" runs. Users want this info anyhow, and if I > just missed the files in the > > "lfs find" run, they should show up as errors here. > > > > Regards, > > Thomas > > > > > > > > > > _______________________________________________ > > 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 >
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