Hi, on our test-cluster I managed to get a very fragmented filesystem (e2fsck reports about 9%), mb_history returns a cr value of 5. The documentation says that "3 – fs is very fragmented (worst at resource consumption)", but it doesn't tell what 5 means. May I assume 5 is even worse than 3?
So no the question is what to do about this fragmention? On our test cluster with 100% garbage this is not a problem, but on a customer system it certainly is. There was an old ext2 defrag program, would it be possible to extent this to support journal and extents data? Where can I find some documentation about the ldiskfs format (ext3 + extents)? I would like to know which blocks need to be moved. Thanks, Bernd -- Bernd Schubert Q-Leap Networks GmbH _______________________________________________ Lustre-discuss mailing list [email protected] https://mail.clusterfs.com/mailman/listinfo/lustre-discuss
