Tagging backups
You can assign your own metadata to each backup in the form of tags. Tags enable you to categorize your backups in different ways, for example, by purpose, owner, or environment. This is useful when you have many resources of the same type—you can quickly identify a specific resource based on the tags that you've assigned to it. For more information, see Resources you can tag.
Cost allocation tags are a means of tracking your costs across multiple Amazon services by grouping your expenses on invoices by tag values. To learn more about cost allocation tags, see Use cost allocation tags.
Using the ElastiCache console, the Amazon CLI, or ElastiCache API you can add, list, modify, remove, or copy cost allocation tags on your backups. For more information, see Monitoring costs with cost allocation tags.