The pricing models for Amazon Elastic Block Store (EBS) and Amazon Simple Storage Service (S3) differ due to their different functionalities and use cases.
Amazon EBS Pricing:
Amazon EBS pricing is primarily based on the following factors:
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Volume Types: EBS offers different types of volumes optimized for various use cases, such as General Purpose SSD (gp2), Provisioned IOPS SSD (io1), Throughput Optimized HDD (st1), Cold HDD (sc1), and Magnetic (standard). Each volume type has its own pricing structure based on size and performance characteristics.
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Volume Size: You're charged based on the provisioned storage capacity of the EBS volume. Pricing is tiered, with lower rates for larger volumes.
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IOPS (Input/Output Operations Per Second): For Provisioned IOPS SSD (io1) volumes, you're charged based on the number of IOPS provisioned.
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Snapshots: You're charged for the storage used by your EBS snapshots, which are incremental backups of your EBS volumes.
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Data Transfer: You may incur charges for data transfer out of Amazon EBS to other AWS services or to the internet.
Amazon S3 Pricing:
Amazon S3 pricing is based on the following factors:
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Storage Class: S3 offers different storage classes optimized for different access patterns and durability requirements, such as S3 Standard, S3 Standard-IA (Infrequent Access), S3 One Zone-IA, S3 Intelligent-Tiering, S3 Glacier, and S3 Glacier Deep Archive. Each storage class has its own pricing structure based on storage volume, data retrieval fees, and other factors.
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Storage Volume: You're charged based on the amount of data stored in S3. Pricing is tiered, with lower rates for higher storage volumes.
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Requests: You may incur charges for various types of requests made to S3, such as PUT, GET, COPY, and LIST requests.
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Data Transfer: You may incur charges for data transfer out of Amazon S3 to other AWS services, to the internet, or between AWS regions.
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Data Retrieval (for certain storage classes): For storage classes like S3 Glacier and S3 Glacier Deep Archive, you're charged for data retrieval operations.
Both Amazon EBS and Amazon S3 offer pricing calculators on the AWS website to help estimate costs based on your specific usage patterns and requirements.
