Your monthly bill from AWS separates your usage information and cost by AWS service and function. There are several AWS billing reports available: the monthly report, the cost allocation report, and detailed billing reports. For more information, see Understanding your bill in the AWS Billing User Guide.
For more detailed reports about your Amazon EFS storage usage, use AWS Data Exports to create exports of the AWS Cost and Usage Report (AWS CUR). With AWS CUR 2.0, you publish your AWS billing reports to an Amazon Simple Storage Service (Amazon S3) bucket that you own. The Amazon EFS usage report lists operations by usage type and AWS Region. For more information, see Cost and Usage Report (CUR) 2.0 in the AWS Data Exports User Guide.
EFS file systems are billed based on the following categories of usage.
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Storage (per gigabyte [GB]) – The amount of data stored in your EFS file systems per month, with different prices depending on the storage class (EFS Standard, EFS Infrequent Access (IA) and EFS Archive).
Throughput (per GB or mebibytes per second [MiBps]) – The amount of data transferred (read/write operations) or the amount that exceeds your provisioned amount, depending on the file system's throughput, per month.
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Data access and transition (per MiBps) – The amount of data read and transferred to the EFS Infrequent Access (IA) and EFS Archive storage classes per month.
Backup storage (per GB) – The amount of storage space consumed by backups per month. Increasing your backup retention period or taking additional user-initiated volume backups increases the amount of backup storage your file system consumes. For more information, see Backing up EFS file systems
Replication (per GB) – The prevailing storage and read, write, and tiering activity rates for your source and destination EFS file systems, as well as any applicable charges for data transfer activity between them, per month.
For detailed information about Amazon EFS charges, see Amazon EFS Pricing
For information about understanding the codes and abbreviations used in the billing and usage reports for Amazon EFS, see Understanding billing and usage reports for Amazon EFS.
