Supported versions and recommended number of instances for High Availability

Supported Redis Cluster versions

The Redis Cluster data service is compatible with the same versions as the standard Redis data service.

Recommended minimum number of instances for High Availability

Minimum number of instances	Reason
6 (3 masters + 3 replicas)	A Redis Cluster is sharded across multiple master nodes, each needing at least one replica to maintain data availability if a master fails. This setup prevents data loss and ensures continuous service.