Alex Pankratov :
Jun 23, 2020Bvckup 2 doesn't upload/download anything. It operates at the file system level so it is merely writing/reading file system objects instead. This will obviously translate into a network activity for drives that front remote storage, but the program remains completely oblivious to this fact.
In terms of reads and writes - when copying files, the program issues no read requests for backup files. It issues write requests only.
It may do some light reading when _resuming_ a previously interrupted delta copying operation, but that's a rather exotic edge case and the amount of data read is limited.