ElastiCache

Summary#

Amazon ElastiCache allows you to set up, run, and scale popular open-source compatible in-memory data stores, like Redis or Memcached. ElastiCache ultimately runs atop EC2 instances with pre-configured software, is prefixed with cache, and is referred to as Nodes.

Pricing Dimensions#

Dimension	Description
Node Usage	You are charged for the amount of hours your ElastiCache nodes run.

Reserved Instances#

ElastiCache Nodes do have Reserved Instances that can give you significant savings. Reserved Instances are covered as a general concept found here.

Typically, as ElastiCache Nodes remain on for longer durations and aren't members of Auto Scaling groups, they are good candidates for cost savings via Reserved Instances.

Savings Plans#

ElastiCache Nodes are not covered under AWS Savings Plans.

Contribute

Contribute to this page on GitHub or join the #cloud-costs-handbook channel in the Vantage Community Slack.

Last updated Jul 11, 2021