I've been using rsync to automatically send files from one box to another, which is great compared to scp, since it supports resuming. However, when resuming a very large file (>10gb) rsync has to read both files and compare them, which is very slow.

I don't need fancy error handling, just "scp with resume", so here's my question:

Is there an alternative to rsync/scp, that supports resuming without having to read both source and destination files?

I've read the manuals without finding anything I can use, please let me know if I've missed something. This is the rsync line I've been using:

rsync -av --partial --progress --inplace SRC DST