S3 Replication & Multi-Region

1. Introduction

Amazon S3 (Simple Storage Service) provides high durability and availability for storing and retrieving data. S3 Replication allows you to automatically replicate your data across different regions, enhancing data protection and availability.

2. Key Concepts

3. Setup

3.1 Step-by-Step Configuration

1. Log in to the AWS Management Console.
2. Navigate to the S3 service.
3. Create a source bucket and enable versioning.
4. Create a destination bucket in a different region.
5. Set up IAM roles with necessary permissions.
6. Configure replication settings on the source bucket.

Note: Ensure that both buckets have versioning enabled before configuring replication.

7. Save the configuration and verify successful replication.

3.2 Example Code for Bucket Policy

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Principal": {
                "AWS": "arn:aws:iam::source-account-id:role/replication-role"
            },
            "Action": "s3:ReplicateObject",
            "Resource": "arn:aws:s3:::destination-bucket-name/*"
        }
    ]
}

4. Best Practices

• Regularly review IAM permissions.
• Monitor replication status using CloudWatch.
• Test replication configurations periodically.

5. FAQ