We really need WD to step up and create a Backblaze B2 Sync client. We need more apps and integration to services for these NAS devices.
Duplicati can sync to backblaze
See Overview of Duplicati Backups to Cloud Storage
If you know your way around with SSH and the command line, I recommend rclone.
Here’s how to install it.
cd /shares/Volume_1/ && mkdir rclone && cd rclone
Download the package. Note: for EX2(Ultra), change amd64 to arm below
download_link="https://downloads.rclone.org/rclone-current-linux-amd64.zip"
rclone_zip="rclone-current-linux-amd64.zip"
curl -O ${download_link}
Unzip and install
/usr/bin/unzip ${rclone_zip} -a
r=$(pwd)/rclone-v*/rclone
chmod +x $r
ln -sf $r /usr/bin/rclone
Now you can get started with rclone
rclone -h
However note that on a reboot, your /home directory (with your rclone settings) and /usr/bin/rclone symlink is gone… There’s ways to persist them, e.g. by installing my Entware package.
When you do, create a symlink like this
ln -sf $r /opt/bin/rclone
