When I first learned about Microsoft Scale Out File Server, I realized that the name was not correct, as in reality there were shared SAS jbods between the storage nodes. The main concept of a true scale-out architecture is Share-Nothing: there should be no shared component between nodes, and the failure of a component should not impact the overall storage solution. During TechED Europe 2014 in Barcelona, a new and really interesting solution has been announced, and the name is promising: Storage Spaces Shared Nothing.
Virtual To The Core
Virtualization blog, the italian way.