Cloud Architecture

Multi-Tenant SaaS Database Isolation Models

Cloud Architecture diagram · made in Skemio

Diagram showing SaaS router dispatching requests to a Shared Pool DB with RLS, a Schema-per-tenant DB, and a Siloed Dedicated DB with IAM.
Diagram showing SaaS router dispatching requests to a Shared Pool DB with RLS, a Schema-per-tenant DB, and a Siloed Dedicated DB with IAM.
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What it shows

  • Pooled models share tables and rely on Row-Level Security (RLS) for lowest cost.
  • Schema-per-tenant offers soft isolation with shared database infrastructure.
  • Silo models provision isolated databases and IAM policies for compliance.

The takeaway

Choose pooled multi-tenancy for margins, and isolate into silos when enterprise compliance demands it.

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