backup.sh

#!/bin/bash
# Simple Backup Script (inspried by https://zarino.co.uk/post/synology-rsync-backup/)
rsync -a -v  --log-file="/var/services/homes/admin/log/backup.$(date +%Y-%m-%d-%H%M).log" \
--exclude '*@SynoResource' \
--exclude '@eaDir' \
--exclude '*.vsmeta' \
--exclude '.DS_Store'  \
/volume1/data/ /volumeUSB2/usbshare/data

This is the Backup script I use on my Synology NAS