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title: "[Xray] (Migration from Server/Data Center to the Cloud Using JCMA) S3 Attachment Storage"
canonical: "https://docs.getxray.app/space/ProductKB/154861576/%5BXray%5D%20(Migration%20from%20Server%2FData%20Center%20to%20the%20Cloud%20Using%20JCMA)%20S3%20Attachment%20Storage"
format: markdown
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When migrating Xray from a Jira Server/Data Center to the Cloud using JCMA (Jira Cloud Migration Assistant), it's important to understand the impact of using S3 storage for attachments.

#### Key Considerations

- **Xray and S3 Storage:** Xray versions below 7.12.0 do not support Amazon S3 for attachment storage. So, if you migrate to the Cloud with a version below 7.12.0, you will encounter issues with attachments stored in S3.
- **Migration Behavior:**
  - **Attachments Created Before S3 Configuration:** any attachments created **before** the client configured S3 storage have been moved to S3. Since Xray cannot access attachments stored on S3, the Xray migration will not find these attachments.
  - **Attachments Created After S3 Configuration:** attachments created **after** the client configured S3 storage behave differently. In these cases, Xray (by chance) can access and migrate the attachments.

For more information, please check the Atlassian documentation: [Storing attachments in Amazon S3](https://confluence.atlassian.com/adminjiraserver/storing-attachments-in-amazon-s3-1282250191.html)

> ❌ **Support for S3 storage has been added to Xray version 7.12.0. If you're planning a migration and using S3, it's strongly recommended that you upgrade to Xray 7.12.0 or later before proceeding.**