I want to set up standard rdiff-backup to remote server. However the data is very big for the capacity of internet connection. Therefore I need some way to do the initial copy of data without rdiff-backup (as there is no way to resume initial transfer which failed after hours of thransfer).
My idea was to transfer data initially on physical media to remote server. After that transfer I synchronized the data by rync to make sure they are identical. Now I want to do intial rdiff-backup. When I run the rdiff-backup there are lots of lines
Getting delta (with hash) of XY
as if the directories were NOT identical. What exactly do these lines mean? Do they mean that the remote rdiff-backup decided that the file is not identical, so there is a delta diff transferred?
Is there any other way to do initial transfer of large data which can be resumed in case of failure (as opposed to be restarted from beginning)?