Amazon S3 vs Glacier

Question 1

Amazon S3 is a durable, secure and fast storage service

Answer 1

Amazon S3 Glacier is used for archiving solutions

Question 2

Use S3 if you need low latency or frequent access to your data

Answer 2

Use S3 Glacier for low storage cost, and you do not require millisecond access to your data

Question 3

You retrieve data in milliseconds from S3.

Answer 3

You have three retrieval options when it comes to Glacier, each varying in the cost and speed it retrieves an object for you.

Question 4

Both S3 and Glacier are designed for durability of 99.999999999% of objects across multiple Availability Zones

Answer 4

S3 and Glacier are designed for availability of 99.99%

Question 5

S3 can be used to host static web cotent, Glacier cannot.

Answer 5

In S3, users create buckets. In Glacier, users create archives and vaults

Question 6

You can store a virtually unlimited amount of data in both S3 and Glacier

Answer 6

A single Glacier archive can contain 40Tb of data

Question 7

S3 supports Versioning

Answer 7

You can run analytics and querying on S3

Question 8

You can configure a lifecycle policy for your S3 objects to automatically transfer them to Glacier. You can also upload objects directly to S3 or GLacier

Answer 8

S3 Standard-IA and One Zone-IA have a minimum capacity charge per object of 128KB. Glaciers minimum is 40KB

Question 9

Objects stored in S3 have a minimum storage duration of 30 days (except for S3 Standard)

Answer 9

Objects that are archived to Glacier have a minimum 90 days of storage. Objects that are deleted, overwritten or transitioned to a different storage class before the minimum duration will incur the normal usage charge plus a pro rated request charge for the remainder of the minimum storage duration

Question 10

Glacier has a per GB retrieval fee

Answer 10

You can transition objects from some S3 storage classes to another. Glacier objects can only be transitioned to the Glacier Deep Archive storage class