I backup all to cloud with CrashPlan ($10 a month for unlimited storage). I also backup everything unattended and automatically over the Internet to a backup server at my son's house and the most important stuff to a 14TB USB drive that automatically backs up my media folders as soon as I plug it in.

Backblaze will not backup NAS units or network attached drives on their $5 a month plan. You have to go with B2 which has tiered pricing which puts what I backup way over the $10 a month unlimited price I get with CrashPlan.