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While there is no single storage architecture model that fits all NoSQL databases, the often recommended approach is a distributed, shared-nothing architecture using local storage (often flash-based) at each node.
At the storage hardware level, direct-attached storage (DAS) would be an example of shared-nothing architecture. This model provides the desired high performance, low latency, fault tolerance and availability that business-critical NoSQL databases like Cassandra and MongoDB require.
While DAS offers significant advantages, it’s…
