There is an advertised function for Pivos AIOS: 4TB internal HDD with hot-plug drive system (In addition to many others)
Does Pivos really expects customers to go through commandline without even listing this in the product description? It appears that (from 2011) stable firmware has not been produced just yet, How's this is even possible? Having a Masters degree in Computer Science I am just about to leave very specific negative review on Amazon. There are number of misleading claims and plain false advertisement with product description on Amazon and manufacturer website.
All owners and users of Pivos hardware welcome to leave comments here.
To Pivos management: You certainly can remove this post.
But US Chamber of Commerce and State Consumer Protection Agency's (not Better Business Bureau's) were relatively quick take action with similar cases.