Question

A media company is designing a new document management platform. Users in North America and Europe upload large PDF and image files that must be immediately readable by any other user regardless of region. The workload is heavily read-oriented (roughly 95% reads), but writes must be strongly consistent so that a document is never served in a stale or partial state after upload. The architecture team wants to minimize custom replication code and operational overhead while keeping upload latency acceptable for both regions. Which storage design best meets these requirements?

Accepted Answer

Deploy a single S3 bucket in one region and serve all users through a CloudFront distribution with regional edge caches, relying on S3 read-after-write consistency for object PUTs.

Answer

Create two S3 buckets, one per region, and configure bidirectional S3 Cross-Region Replication (CRR) so users in each region write and read from their local bucket.

Answer

Store documents on an EFS file system with One Zone storage in each region and synchronize the file systems using AWS DataSync on a scheduled task.

Answer

Use an Amazon FSx for Windows File Server Multi-AZ deployment in one region and mount it over the internet from application servers in both regions.