object-storage-architecture

Object storage bucket topology for multi-tenant SaaS requires choosing between shared or per-tenant buckets. This design evaluates tenant isolation, multi-region deployment, and metadata design to ensure scalable storage backends.

Direct-to-storage uploads in S3 for SaaS products use presigned URLs to offload transfer bandwidth. This pattern bypasses application servers, enabling scalable upload and download workflows while maintaining strict access control.

Choosing an object storage provider between S3, R2, and Azure Blob depends on a provider selection framework evaluating tradeoffs. Consider multi-region deployment needs, lifecycle management, and cross-cutting concerns like encryption.

Object storage design for SaaS supports multi-region deployment and tenant isolation through strategic bucket topology. It addresses cross-cutting concerns including access control, encryption, and lifecycle management across regions.

Use per-tenant buckets instead of a shared bucket topology when strict tenant isolation is required. Per-tenant designs simplify access control and metadata isolation, while shared buckets offer easier lifecycle management and cost aggregation.