rsync not skipping untouched files

Question

I transferred about 300GB of files with scp from one server to another. Sadly I forgot the -r option, so part of the files that were in subdirectories were not copied. I verified that the files that were copied are the same with md5sum.

Now I want to copy the other files with rsync. The problem is, that rsync wants to send everything again. It doesn't skip the files that are already copied. It creates new files for every existing file and then replaces the existing one with the new one. I use rsync with -arvx. What do I need to do those files are skipped?

Answer 1

 --ignore-existing       skip updating files that exist on receiver

http://linux.die.net/man/1/rsync