Amazon S3 and Glacier are two different storage services offered by Amazon Web Services (AWS). While they are both designed for data storage, they differ in terms of their storage classes, pricing, and access times.
Amazon S3:
Amazon Simple Storage Service (S3) is a fully managed object storage service that is designed for storing and retrieving any amount of data. S3 is a highly scalable and durable service that can be used to store data for a wide range of use cases, including backups, archives, and application data.
Amazon S3 offers several storage classes, each with different pricing and access characteristics:
S3 Standard: This storage class is designed for frequently accessed data and offers low latency and high throughput performance. It is ideal for use cases such as content delivery, backup and restore, and big data analytics.
S3 Standard-Infrequent Access (S3 Standard-IA): This storage class is designed for data that is accessed less frequently, but still requires rapid access when needed. It offers lower storage costs and retrieval fees than S3 Standard, but with a slightly longer retrieval time.
S3 One Zone-Infrequent Access (S3 One Zone-IA): This storage class is similar to S3 Standard-IA, but data is stored in a single availability zone, rather than being replicated across multiple zones. This reduces storage costs, but may not be suitable for mission-critical data.
S3 Intelligent-Tiering: This storage class automatically moves data between S3 Standard and S3 Standard-IA based on changing access patterns, providing cost savings without requiring manual intervention.
S3 Glacier: This storage class is designed for data archiving and long-term storage. Data is stored in Glacier vaults, and retrieval times can take several hours, but storage costs are much lower than other S3 storage classes.
Amazon Glacier:
Amazon Glacier is a low-cost storage service that is designed for data archiving and long-term storage. Data is stored in Glacier vaults, and retrieval times can take several hours, but storage costs are much lower than other S3 storage classes.
Amazon Glacier offers two storage classes, each with different pricing and access characteristics:
Glacier: This storage class is designed for data archiving and long-term storage. Data is stored in Glacier vaults, and retrieval times can take several hours, but storage costs are much lower than other S3 storage classes.
Glacier Deep Archive: This storage class is designed for data that is rarely accessed and has a retention period of several years. Data is stored in Glacier vaults, and retrieval times can take up to 12 hours, but storage costs are the lowest of any AWS storage class.
Overall, Amazon S3 and Glacier are both highly durable and scalable storage services in AWS, but they differ in terms of their storage classes, pricing, and access times. Amazon S3 is designed for frequently accessed data and offers low latency and high throughput performance, while Glacier is designed for data archiving and long-term storage and offers much lower storage costs.