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AWS S3 Cross Region Replication

AWS S3 Cross Region Replication with Example

Amazon S3 Cross-Region Replication (CRR) allows you to replicate objects from one Amazon S3 bucket to another bucket in a different AWS region. This can be useful if you want to store a copy of your data in a different region for disaster recovery, compliance, or to reduce the latency of access to your data.

Here is an example of how to set up cross-region replication for an S3 bucket using the AWS Management Console:

1. Sign in to the AWS Management Console and open the Amazon S3 console.

2. In the Buckets list, select the bucket that you want to replicate.

3. In the Properties tab, click the Replication card.

4. Click the Add rule button.

5. In the Source section, select the bucket that you want to replicate from.

6. In the Destination section, select the bucket that you want to replicate to.

7. In the IAM Role section, select the IAM role that you want to use for replication. This role should have permissions to access both the source and destination buckets.

8. In the Events section, select the events that you want to trigger replication. You can choose to replicate objects when they are created, deleted, or both.

9. In the Filter section, you can optionally specify a prefix or a suffix for the objects that you want to replicate. This can be useful if you only want to replicate a subset of objects in the source bucket.

10. Click the Save button to create the replication rule.

You can also set up cross-region replication using the AWS CLI or the Amazon S3 API.

Once the replication rule is set up, Amazon S3 will automatically replicate objects from the source bucket to the destination bucket when the specified events occur. You can view the replication status and progress in the Replication tab of the source bucket.

I hope this example helps clarify how cross-region replication works in Amazon S3. Let me know if you have any questions.

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