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Re:Torus: A distributed storage system by CoreOS by zzzcpan on Wednesday June 01, 2016 @03:33PM (#11817436)
> Actually, persistent storage is fairly hard in itself

Don't we have distributed data storages precisely because it's impossible to guaranty persistence locally? It's kind of a way to not bother trying to solve the impossible, but to achieve some guarantees on a different level.

Re:Torus: A distributed storage system by CoreOS by wnoise on Wednesday June 01, 2016 @06:06PM (#11818617)
That's one use case, but far more common is reducing latency and increasing bandwidth for distributed computing acting on a shared set of data.