> ...but it took at least 6 hours... Rsync cannot transfer more than one file at a time so if you were transferring a lot of small files that was probably the

> ...but it took at least 6 hours... Rsync cannot transfer more than one file at a time so if you were transferring a lot of small files that was probably the bottleneck. You could either use xargs/parallel to split the file list and run multiple instances of rsync or use something like rclone, which supports parallel transfers on its own.