Building a sustainable OpenStack Cloud with Open Compute Project platforms
summary
Deployment uses Open Compute Project servers and Facebook Wedge 100G switches in a spine‑leaf fabric, OpenStack and Ceph with 25GbE backends and NVMe‑only Ceph nodes, and runs from refurbished OCP racks to cut scope‑3 emissions. Benchmarks against identical Dell 19" systems show 15–20% energy savings at typical loads; cold‑aisle containment adds little because OCP tolerates higher inlet temperatures. Manageability proves the main friction: basic BMCs, missing IPMI on some boards, and partial Redfish support push custom OpenStack‑Ansible tooling and reliance on Sushi/Ironic integrations.
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