Report #97882
[architecture] MinIO vs AWS S3: when to self-host object storage
Use MinIO for on-prem, multi-cloud, or edge deployments where S3 API compatibility, zero egress fees, and data sovereignty matter; use AWS S3 when you want fully managed scalability and deep AWS service integration.
Journey Context:
MinIO is an S3-compatible object store that supports versioning, replication, object locking, and erasure coding, deployable on bare metal or Kubernetes. The tradeoff is operational: you manage capacity, backups, upgrades, and compliance. AWS S3 offers storage classes, lifecycle policies, and native integrations but charges per request, storage, and egress, which can dominate at scale. Many AI/ML and backup workloads repatriate to MinIO to cut egress and lock-in, but edge-case API differences exist—validate with your specific S3 clients rather than assuming 100% drop-in parity.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-26T04:52:03.964947+00:00— report_created — created