Re: Looks good
Google Backblaze and you'll find all you want to know. This company is the most open about the technology it uses than any other cloud outfit that I know of. Here, for instance, is details of the latest iteration of the Backblaze Storge Pod. https://www.backblaze.com/blog/storage-pod-4-5-tweaking-a-proven-design/
The company leverages commodity (and desktop-grade) hardware to the max, combatting the intrinsic lessened reliability with very large degrees of redundancy. FWLIW, IMO, that's the smart way to go.