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In this model, PowerScale replaces the HDFS that is shipped in Cloudera Data Platform Private Cloud Base.
In this architecture, PowerScale acts as the HDFS storage layer, and the bare-metal nodes only provide the compute resources required. Considerations for a storage component are not required, but you must ensure a reasonable oversubscription ratio between PowerScale switches and the compute node switches.
The following graphic depicts a cluster deployed across several racks (Rack1, Rack 2, and up to Rack n).
Each host is networked to two top-of-rack (TOR) switches, which are connected to spine switches, which are connected to the enterprise network. This deployment model allows each host maximum throughput and minimum latency, while encouraging scalability. The specifics of the network topology are described in the following subsections.