Obnam should, at least optionally, use fsync or other methods to ensure that everything gets committed to disk by the kernel by the end of a backup run. --liw

I want this to not have a huge performance impact, though. Learning from the lessons of dpkg, sqlite/liferea/firefox, etc, and using fsync/fdatasync and sync_file_range in the right ways is going to be necessary. --liw

Not doable over sftp, of course. --liw