Backing up music library in ROCK

[grossmsj (Scott G)]

Roon OS and Nucleus Internal Storage backup

So I have my music library on the internal 1TB SSD inside my new Nucleus. The library is also my iTunes library, so that when I burn a CD on My Mac it gets added to the Nucleus, and can also be accesses by Roon software on my Mac, iPhone and iPad. All works great. The Nucleus is networked to my Router. I now want to back up the Roon Core software and the music on the Internal Nucleus storage using an external USB 3 drive. How do I initiate a back up? Thanks William Allbrook