Best way to backup one "My Cloud" device to another?

My Cloud OS 3 Personal & Network Attached Storage My Cloud
2

I’ll have to read more about safe points.

After some more googling and forum searching I found this post which goes on to explain how to setup rsync.

Linking to it here to help anyone that may have the same question I did.

http://community.wd.com/t5/WD-My-Cloud/Horrible-rsync-performance-on-wd-cloud-vs-My-book-live/m-p/606311/highlight/true#M322