We just finished producing a video on picking parts for a NAS using Unraid, but now the Unraid blog post we're linking to is returning a 404. Ha ha, it's Joey.
Here's the link: https://unraid.net/blog/unraid-server-to-server-backups-with-rsync-and-wireguard
So far, really liking Unraid, though had a few hiccups getting it running, even though we made our Unraid USB with the creation tool, we still had to make the USB bootable in Win10- this cost a few hours of troubleshooting. Also, the Define R5's stock case fans are WOEFULLY inadequate for a 8 HDD array behind a closed front panel, wow.
Hope you can get this guide back up soon, thanks!
-Rick, Techspin Review