How do you back up the NAS to crashplan?

I don’t think you can back it up directly, that would involve installing the Crashplan client on your NAS drive. You’d need a PC/Mac/whatever with Crashplan installed and the NAS drive mounted, then just include it in a backup set.

That’s what I thought – not ideal. I don’t really want to have to turn my machine on to do all this stuff.

A WD MyCloud can store its own incremental backups on an SMB share in its own time.

FWIW – I tried crashplan to my NAS and it doesn’t work (on Windows anyway), I ended up using SyncToy instead. Not quite as whizzy, but it works. I make a copy of my data to the NAS with SyncToy, and use Backblaze to do an offsite backup. Fibre broadband with 20meg up definitely helps with that!