Regions and Availability Zones
An OSC region is a complete cloud deployment with its own infrastructure and operational boundary. Customer workloads and data are placed in a selected region according to the applicable service and contract.
Every region contains three Availability Zones. The zones are physically separated but connected through the regional network. Core platform services are distributed across the zones so that the platform does not depend on a single location.
Customers choose how their Kubernetes worker pools are placed across the zones. A production cluster can run workers in all three zones, while a development cluster may use a smaller placement. The region-wide storage and networking services connect these environments into one cloud platform.
The three-zone design improves resilience, but application availability still depends on application architecture. A service with only one replica in one zone remains vulnerable to the loss of that zone. Production workloads should use multiple replicas and Kubernetes scheduling rules that spread them across failure domains.
Persistent data also needs an explicit design. Regional storage is built to replicate data across the platform, but recovery objectives, backup requirements and application consistency remain workload-specific.