[disclosure I'm from Redis Labs] - around 50% of our 7K+ paying customers use Redis as a database. In general, you can setup an environment in which Redis is HA (replication + auto-failover) and persistent. Redis Enterprise does it by default + backup and DR + some enhancements to the Redis storage layer (as mentioned in this blog. These enhancements together with the high end storage device by Dell-EMC allowed us to reach this throughout & latency. BTW, this test ran on a single node, you can scale it by just adding node(s) to the cluster.