ApsaraDB for Redis shows the same service behavior as Redis. After you create an instance, the instance generates database metadata that occupies a small amount of storage on the instance. You can view the occupied space in the ApsaraDB for Redis console.
Memory occupied by metadata information:
- The metadata size for standard instances is 30 MB to 50 MB.
- The metadata size on each shard of cluster instances is 30 MB to 50 MB. The total size of metadata for a cluster equals the sum of the metadata size on each shard of the cluster.