. For example, you might choose to transition objects to the STANDARD_IA storage class 30 days after you created them, or archive objects to the GLACIER storage class one year after creating them.

Expiration actions: Define when objects expire. Amazon S3 deletes expired objects on your behalf.

Lifecycle configuration is an XML file applied at the bucket level as a sub-resource.

Can be used in conjunction with versioning or independently.

Can be applied to current and previous versions.

Can be applied to specific objects within a bucket: objects with a specific tag or objects with a specific prefix.

There are costs associated with the lifecycle transition requests. For pricing information, see

Amazon S3 Simple Storage Service Pricing - Amazon Web Services⁠

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Supported Transitions and Related Constraints

⁠

Amazon S3 supports the following lifecycle transitions between storage classes using a lifecycle configuration:

You can transition from the STANDARD storage class to any other storage class.

You can transition from any storage class to the GLACIER or DEEP_ARCHIVE storage classes.

You can transition from the STANDARD_IA storage class to the INTELLIGENT_TIERING or ONEZONE_IA storage classes.

You can transition from the INTELLIGENT_TIERING storage class to the ONEZONE_IA storage class.

You can transition from the GLACIER storage class to the DEEP_ARCHIVE storage class.

The following lifecycle transitions are not supported:

You can’t transition from any storage class to the STANDARD storage class.

You can’t transition from any storage class to the REDUCED_REDUNDANCY storage class.

You can’t transition from the INTELLIGENT_TIERING storage class to the STANDARD_IA storage class.

You can’t transition from the ONEZONE_IA storage class to the STANDARD_IA or INTELLIGENT_TIERING storage classes.

You can transition from the GLACIER storage class to the DEEP_ARCHIVE storage class only.

You can’t transition from the DEEP_ARCHIVE storage class to any other storage class.

The lifecycle storage class transitions have the following constraints:

From the STANDARD or STANDARD_IA storage class to INTELLIGENT_TIERING. The following constraints apply:

For larger objects, there is a cost benefit for transitioning to INTELLIGENT_TIERING. Amazon S3 does not transition objects that are smaller than 128 KB to the INTELLIGENT_TIERING storage class because it’s not cost effective.

From the STANDARD storage classes to STANDARD_IA or ONEZONE_IA. The following constraints apply:

For larger objects, there is a cost benefit for transitioning to STANDARD_IA or ONEZONE_IA. Amazon S3 does not transition objects that are smaller than 128 KB to the STANDARD_IA or ONEZONE_IA storage classes because it’s not cost effective.

Objects must be stored at least 30 days in the current storage class before you can transition them to STANDARD_IA or ONEZONE_IA. For example, you cannot create a lifecycle rule to transition objects to the STANDARD_IA storage class one day after you create them.

Amazon S3 doesn’t transition objects within the first 30 days because newer objects are often accessed more frequently or deleted sooner than is suitable for STANDARD_IA or ONEZONE_IA storage.

If you are transitioning noncurrent objects (in versioned buckets), you can transition only objects that are at least 30 days noncurrent to STANDARD_IA or ONEZONE_IA storage.

From the STANDARD_IA storage class to ONEZONE_IA. The following constraints apply:

Objects must be stored at least 30 days in the STANDARD_IA storage class before you can transition them to the ONEZONE_IA class.

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Advantages of Lifecycle Management

Automated Maintenance: Streamlines object lifecycle management tasks, reducing manual effort and ensuring consistent enforcement of policies.

Cost Efficiency: Optimizes storage costs by transitioning objects to lower-cost storage classes and automating the deletion of expired data.

Compliance Assurance: Facilitates adherence to data retention policies and regulatory requirements through automated expiration and deletion mechanisms.

Granular Control: Provides granular control over lifecycle actions, allowing for selective application to specific objects based on defined criteria.

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