What triggers this finding
An ElastiCache cluster on a node type larger than its memory and CPU utilization metrics justify.
Typical fix
Downsize to a smaller node type during a maintenance window. Monitor cache hit rate and evictions after resizing.
Example savings
The difference between current and recommended node pricing — often 25–50% of cluster cost.
See also: Severity and savings estimates for how Parsivex calculates figures on your report.