The easiest way to backup a Synology NAS to Unraid Server is to use Hyper Backup on Synology and rsync on Unraid.
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First, enable rsync on your Unraid Server. It is preinstalled but not running as a daemon.
Create a file /boot/custom/etc/rsyncd.conf with the following content:
uid = root gid = root use chroot = no max connections = 4 pid file = /var/run/rsyncd.pid timeout = 600 [backups] path = /mnt/user/backups comment = Backups read only = FALSE
Here above:
- The name “backups” between brackets will be visible as “backup module” from the Synology. You can create several blocks like this one.
- The “path” (here /mnt/user/backups) must exist on your Unraid server (create this one as a shared folder, to be able to access the backup later from any PC)
- Notice: the folder /boot should exist. But you could possibly have to create the subfolders /custom/etc
Next, create a file /boot/custom/etc/rc.d/S20-init.rsyncd with the following content:
#!/bin/bash
if ! grep ^rsync /etc/inetd.conf > /dev/null ; then
cat <<-EOF >> /etc/inetd.conf
rsync stream tcp nowait root /usr/sbin/tcpd /usr/bin/rsync --daemon
EOF
read PID < /var/run/inetd.pid
kill -1 ${PID}
fi
cp /boot/custom/etc/rsyncd.conf /etc/rsyncd.conf
Finally, add the following line in the file /boot/config/go :
#!/bin/bash
bash /boot/custom/etc/rc.d/S20-init.rsyncd
Now, either reboot or execute: bash /boot/custom/etc/rc.d/S20-init.rsyncd
Go now on your Synology and open “Hyper Backup” to Create a new Data Backup Task:
Select rsync as Backup Destination:
And Create the backup Task with “rsync-compatible server” as Server Type:
In order to access the backup and retrieve files from a PC, use the application “Hyper Backup Explorer” from Synology and open the backup file .bkpi located under \\<YourServer>\backups\<Yourbackup>.bkp\
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