Reference · GlossaryWarm standbyA **pre-provisioned backup environment** kept ready (but not serving traffic) for fast failover.On this pageWhen to useWhen not toExample#When to useLow RTO requirements for chat APIs and RAG services in a second region.#When not toCost-sensitive side projects — cold standby or rebuild may suffice.#ExampleSecondary region runs scaled-to-minimum pods; traffic shifts when primary readiness fails.Learn by doing → Learn by doing →Related termsFailoverDisaster recovery (DR)RTO (recovery time objective)← All terms