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4h1
2013 Oct 06
1
Rsync copies more than the changes
I use rsync on an SSD which is slow at writing, but very fast at
reading, so it is important to me to avoid writing data.
I had hoped rsync would only write changes in files when using
--inplace, but it seems not:
# Make a 1 GB file
$ perl -e 'print "x"x1000000000' > 1g
# rsync it (as expected this costs 1 GB writes)
$ ./rsync-3.1.0/rsync --progress --inplace -cva 1g 1g.copy