Check for any AWS EBS snapshots older than 30 days available within your AWS account and remove them in order to lower the cost of your monthly bill. The threshold for the retention period is 30 days, which means that all incremental snapshots older than 30 days should be deleted.
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With an active EBS backup strategy that takes volume snapshots daily or weekly, your data can grow rapidly and add unexpected charges to your bill. Since AWS EBS volumes snapshots are incremental, deleting previous (older) snapshots do not affect the ability to restore the volume data from later snapshots which allows you keep just the necessary backup data and lower your AWS monthly costs.
To determine if you have any obsolete (> 30 days) EBS snapshots available in your AWS account, perform the following:
Remediation / Resolution
To safely delete any old and unneeded EBS volume snapshots from your AWS account, perform the following:
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EBS Volumes Too Old Snapshots
Risk level: Low