newReplicaCount

The number of replicas you want in this node group at the end of this operation. The maximum value for NewReplicaCount is 5. The minimum value depends upon the type of Valkey or Redis OSS replication group you are working with.

The minimum number of replicas in a shard or replication group is:

• Valkey or Redis OSS (cluster mode disabled)

• If Multi-AZ: 1

• If Multi-AZ: 0

• Valkey or Redis OSS (cluster mode enabled): 0 (though you will not be able to failover to a replica if your primary node fails)