IMHO backblaze is not a good example, because their design is prone to a few kinds of onerous failures due to the poor hw design of some of their components. It

IMHO backblaze is not a good example, because their design is prone to a few kinds of onerous failures due to the poor hw design of some of their components. Its much smarter to build this sort of thing with an actual JBOD chassis and a SAS controller > Then you just need smart client that splits data 3-way into 3 different national jurisdictions. This actually doesn't help much.