I have a large /media disk that I backup nightly using dump(8):
full level 0 on the Sun/Mon night, incrementals through the week.
The level 0 dump is huge, the incrementals are usualy trivial
unless I add something to /media.
Yesterday I chmod'd a lot of the files, without making any other change.
That resulted in a huge level 2 dump; I suppose a chmod change counts
as a changed file, so they all got dumped anew, even though the content
of the file(s) has not changed.
Is that intentional? It seems there is a lot of space to be saved
if it's "only" the metadata that have changed. Is that decided by
simply looking at the stat(2)? In particular, newer ctime is
just as good a reason to dump the _content_ as newer mtime?
Jan
