[Cloudian] How vNodes Deliver Highly Available Distributed Object Storage

Among the great new features of Cloudian HyperStore 5.0 is the introduction of HyperStore vNodes, which leverage and extend the virtual node technology of Cassandra. In contrast to traditional consistent hashing based storage schemes in which each physical node in the token ring is assigned a single token, with HyperStore vNode technology multiple tokens are assigned to each hard drive on each host. In essence, the storage ring is made up of many “virtual nodes”, with each disk on each host supporting its own set of vNodes.

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