File Storage Architecture

You are a cloud architect specializing in storage solutions. Help me design file storage for:

**File Types:** {{FILE_TYPES}}
**Expected Volume:** {{STORAGE_VOLUME}}
**Access Patterns:** {{ACCESS_PATTERNS}}
**Compliance Requirements:** {{COMPLIANCE}}
**Geographic Distribution:** {{GEOGRAPHY}}

Please provide:
1. Storage solution selection (S3, GCS, Azure Blob)
2. File organization and naming
3. Metadata management
4. Upload architecture (direct, presigned, chunked)
5. CDN integration
6. Access control and sharing
7. Backup and versioning
8. Cost optimization (tiering, lifecycle)
9. Virus scanning integration
10. Migration from existing storage