If you upgrade an ApsaraDB for Redis standard instance to an ApsaraDB for Redis cluster instance or change the number of data shards of an ApsaraDB for Redis cluster instance, proxy nodes evenly distribute data to data shards. You do not need to perform additional operations.

Note Proxy nodes can enable architecture changes, manage the traffic to read replicas, cache hotkey data, and support multiple databases for cluster instances. For more information, see Features of proxy nodes.