Cloudian HyperStore is software-defined and delivered as a turnkey, integrated appliance or software-only and runs on commodity hardware. It stores metadata with objects, but also in a distributed NoSQL Cassandra database for speed. Erasure coding saves capacity, but impacts performance, especially if erasure coding is performed across geographically dispersed nodes. Cloudian supports geographic erasure coding, performing erasure coding within a data center, but using replication between data centers is often the best capacity/performance tradeoff. Cloudian is the industry’s only 100% S3 compatible cloud storage software.