File shares to backup UCS Server

I have a few shares created for Windows clients to use. I would like to make periodic backups to an off-site UCS-Backup Server. The backup server is already created and sees the shares on the Master server, but currently does not backup any of the data. The systems are connected via vpn, so they can easily be accessed on the same subnet. What is an easy solution for data backup much like rsync or rclone?

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