Supported versions and recommended number of instances for High Availability
Supported Redis Cluster versions
PDS supports the following Redis Cluster data service versions:
Data service | Version |
Redis |
|
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. |