- EFS Standard: Data stored in multiple availability areas
- EFS Standard-Infrequent Access (IA), for Standard data that is infrequently or irregularly accessed
- Amazon EFS One Zone: To store redundant data in a single availability area
- Amazon EFS One Zone-Infrequent Access: This is for One Zone data that is infrequently or irregularly accessed
The IA storage levels are less expensive than their counterparts. They are for files that haven’t been accessed in between seven and ninety days, depending on the organization’s lifecycle policy. They are a cost-effective solution for files that are less critical. Customers may be charged extra if files in IA get accessed more often than they are supposed to, such as if they forget to move it to the Standard Tier. Yun stated that EFS Intelligent-Tiering monitors your file system’s access patterns and moves files that are not being accessed for the length of the policy from EFS Standard to EFS One Zone or EFS Standard-IA depending on whether your file systems use EFS Standard storage classes or EFS One Zone storage clases. “If the file is accessed once more, it is moved back into EFS Standard or EFS One Zone storage categories.” You can find more information about Intelligent-Tiering in EFS here. Intelligent-Tiering for Amazon S3 Updated AWS also announced two new capabilities in its Intelligent-Tiering feature (S3). S3 Intelligent-Tiering is currently only available for objects larger than 128KB and kept for a minimum period of 30 days. Monitoring and automation charges for objects smaller than 128KB will no longer be collected as of today. This includes both new and existing objects in the S3 intelligent-Tiering storage classes,” wrote Sean M. Tracey in an article. Prorated charges will not be applied to objects that are deleted, transferred, or overwritten within the next 30 days. You can find more information about Intelligent-Tiering in S3 here.
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