Summary: xfsdump dumps unnecessary files/inodes when doing
Product: Linux XFS
xfsprogs (all versions from when Noah was a boy to present) dump
unnecessary files/inodes when doing incremental dumps.
When files are moved/renamed (causing a directory to be changed), all
files in the directory (or directories in the example below) are
dumped again --- even when they are older than the dump's time stamp.
For example, if you were to dump (level 0) the following:
and then after the level 0 dump do:
mv dir1/file2 dir1/file1
or whatever... xfsdump will dump not only dir1 and dir2, but also all
the files contained within (ie. dir1/file1, dir2/file2, dir1/file3).
This is unnecessary as the file contents and inodes have not changed,
and extremely annoying when a file in (say) /usr/bin gets renamed or
whatever as the entire directory gets dumped.
Obviously, renames of multiGB files really hurt.
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