Rules for choosing buckets for Amazon S3 Multi-Region Access Points - Amazon Simple Storage Service

Rules for choosing buckets for Amazon S3 Multi-Region Access Points

Each Multi-Region Access Point is associated with the Regions where you want to fulfill requests. The Multi-Region Access Point must be associated with exactly one bucket in each of those Regions. You specify the name of each bucket in the request to create the Multi-Region Access Point. Buckets that support the Multi-Region Access Point can either be in the same AWS account that owns the Multi-Region Access Point, or they can be in other AWS accounts.

A single bucket can be used by multiple Multi-Region Access Points.

Important

  • You can specify the buckets that are associated with a Multi-Region Access Point only at the time that you create it. After it is created, you can’t add, modify, or remove buckets from the Multi-Region Access Point configuration. To change the buckets, you must delete the entire Multi-Region Access Point and create a new one.

  • You can't delete a bucket that is part of a Multi-Region Access Point. If you want to delete a bucket that's attached to a Multi-Region Access Point, delete the Multi-Region Access Point first.

  • If you add a bucket that's owned by another account to your Multi-Region Access Point, the bucket owner must also update their bucket policy to grant access permissions to the Multi-Region Access Point. Otherwise, the Multi-Region Access Point won't be able to retrieve data from that bucket. For example policies that show how to grant such access, see Multi-Region Access Point policy examples.

  • Not all Regions support Multi-Region Access Points. To see the list of supported Regions, see Multi-Region Access Point restrictions and limitations.

You can create replication rules to synchronize data between buckets. These rules enable you to automatically copy data from source buckets to destination buckets. Having buckets connected to a Multi-Region Access Point does not affect how replication works. Configuring replication with Multi-Region Access Points is described in a later section.

Important

When you make a request to a Multi-Region Access Point, the Multi-Region Access Point isn't aware of the data contents of the buckets in the Multi-Region Access Point. Therefore, the bucket that gets the request might not contain the requested data. To create consistent datasets in the Amazon S3 buckets that are associated with a Multi-Region Access Point, we recommend that you configure S3 Cross-Region Replication (CRR). For more information, see Configuring replication for use with Multi-Region Access Points.