To transfer S3 Glacier objects to S3 bucket

Question

Hi AWS, we have some objects having Storage Class Glacier Flexible Retrieval (Formerly Glacier) which I need to transfer in a new S3 bucket in the same AWS account having Storage Class Standard. What are the different ways of doing that?

Also I need to know how can we do:

Cross region Same account
Same region Cross account
Cross region Cross account

Please suggest.

Also I need to know how can we do:
1. Cross region Same account 
2. Same region Cross account 
3. Cross region Cross account

Please suggest.

Answer

To transfer objects from an S3 bucket with the Glacier Flexible Retrieval storage class to a new bucket with the Standard storage class within the same AWS account, you have several options. You can use AWS services like AWS CLI, AWS SDKs, or AWS DataSync for this purpose.

Keeping things simple anyway, you can copy files from a bucket to another with

```
aws s3 sync s3://source-bucket s3://destination-bucket
```
Note: It does not matter in what Class is what object as S3 will figure things out.

1. Cross region Same account --> Just copy as before, making sure the two buckets are set up in different regions (Although S3 is global service)
2. Same region Cross account --> Moving data to another account implies you set up the user launching the copy to have access to the destination bucket, via a bucket policy on destination.
3. Cross region Cross account --> As point 2.

To transfer S3 Glacier objects to S3 bucket

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