S3 Object Storage Classes Flashcards
What are the main Amazon S3 storage classes?
The main Amazon S3 storage classes include S3 Standard, S3 Intelligent-Tiering, S3 Standard-Infrequent Access (S3 Standard-IA), S3 One Zone-Infrequent Access (S3 One Zone-IA), S3 Glacier, and S3 Glacier Deep Archive.
What is the S3 Standard storage class used for?
S3 Standard is used for data that is frequently accessed and requires high durability, availability, and performance.
How does the S3 Intelligent-Tiering storage class work?
S3 Intelligent-Tiering automatically moves data between two access tiers (frequent and infrequent access) based on changing access patterns, without performance impact or operational overhead, optimizing costs for data with variable access patterns.
What is the difference between S3 Standard-IA and S3 One Zone-IA storage classes?
S3 Standard-IA is designed for data that is less frequently accessed but requires high availability, whereas S3 One Zone-IA stores data in a single AZ and costs less, suitable for infrequently accessed data that doesn’t require the availability and resilience of multiple AZs.
What are the S3 Glacier and S3 Glacier Deep Archive storage classes designed for?
S3 Glacier and S3 Glacier Deep Archive are designed for long-term data archiving. Glacier is for retrievals within minutes to hours, while Glacier Deep Archive is the most cost-effective for data that can be retrieved within 12 hours.
What is the typical use case for S3 Glacier Deep Archive?
S3 Glacier Deep Archive is ideal for keeping data that you plan to access very infrequently, like regulatory archives and digital preservation.
When should you use S3 One Zone-IA over other storage classes?
Use S3 One Zone-IA for infrequently accessed data that doesn’t need the resilience of being stored across multiple availability zones, such as secondary backup copies or easily reproducible data, to save costs.
How does the S3 Intelligent-Tiering Class bill for objects?
S3 Intelligent-Tiering charges a small monthly monitoring and auto-tiering fee per object in addition to the storage costs, making it cost-effective for data with unpredictable access patterns.
Can data be directly uploaded to S3 Glacier or S3 Glacier Deep Archive?
Yes, data can be directly uploaded to S3 Glacier or S3 Glacier Deep Archive for archiving purposes. However, the retrieval times and costs differ significantly from those of the other S3 storage classes.
What factors should be considered when choosing an S3 storage class?
When choosing an S3 storage class, consider factors such as how frequently the data will be accessed, the required availability and durability, how quickly you need to be able to retrieve the data, and cost considerations.
