I execute rsync with the
--checksum option on the destination server as follows:
rsync -av --bwlimit=800000 --delete --checksum /mnt/disks/SMB_SRC/ /mnt/user/dst
But as I mounted the source server as SMB share, all files were fully transfered to the destination server to calculate the checksum. Which protocols are needed to enable calculating the source file's checksum on the source server to avoid the transfer of all files? Only rsync daemon (rsync://) or are other protocols supported, too?