Hello, I synchronize a directory containing about ten files of about 600 GB each. Every day, the files are little modified, then I use the arguments rsync --progress --no-file-file to otmise the transfer. My final command is: rsync --times --recursive --delete --timeout = 0 --force --verbose --inplace --progress --no-file-file -e "ssh -p 22" /home/ root at 192.168.0.1: /House/ Everything is working properly. However, I saw that Rsync is going to read the destination file first then after and only after read the source file to send the difference. The reading of 400GB file takes time. So how to make Rsync read the destination and source files at the same time? Thank you -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.samba.org/pipermail/rsync/attachments/20190619/edba8fc7/attachment.htm>