My storage cost is higher than I expected when using Amazon DataSync - Amazon DataSync
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My storage cost is higher than I expected when using Amazon DataSync

If your storage cost is higher then expected when using Amazon DataSync, it might be due to one or more of the following reasons:

  • DataSync uses the Amazon S3 multipart upload feature to upload objects to Amazon S3. This approach can result in unexpected storage charges for uploads that don't successfully complete.

  • Object versioning might be enabled on your S3 bucket. Object versioning results in Amazon S3 storing multiple copies of objects that have the same name.

Action to take

In these cases, you can take the following steps:

  • If the issue relates to multipart uploads, configure a policy for multipart uploads for your S3 bucket to clean up incomplete multipart uploads to reduce storage cost. For more information, see the Amazon blog post S3 Lifecycle Management Update - Support for Multipart Uploads and Delete Markers.

  • If the issue relates to object versioning, verify whether object versioning is enabled for your Amazon S3 bucket. If versioning is enabled, turn it off.

If you perform these actions and the issue isn't resolved, contact Amazon Support. For information about how to contact Amazon Support, see Getting started with Amazon Support.