**Gateway Options:**
1. **Amazon S3 File Gateway:** Extends on-premises file storage to Amazon S3 using NFS or SMB protocols.
2. **Amazon FSx File Gateway:** Provides file access to FSx for Windows File Server, integrating on-premises and cloud file storage.
3. **Tape Gateway:** Integrates on-premises backup applications with virtual tape libraries in Amazon S3 and Glacier.
4. **Volume Gateway:** Presents cloud-backed block storage volumes as iSCSI devices for on-premises applications.