Redis Cluster vs Redis Sentinel Similarities: Both solutions provide high availability for your system Use sentinel when speed isn't your primary concern, which makes it an excellent option for small implementation with high availability concerns. Redis cluster provides high availability plus clustering solution. It's an excellent choice to ensure high availability while keeping fast access speed in consideration to access your data. Bottom line: If you need an automatic failover solution without going to a full cluster solution, then use Sentinel. For getting a complete clustering solution whoch splits your database in between multiple nodes then go for clustering.