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Core Capabilities

Application Protection​

DisasterInstance represents a protected application. It includes source and target clusters, namespaces, sync policies, restore policies, and runtime state.

Data Synchronization​

DataSync protects PVC data. It creates AppBackup on the source cluster and AppRestore on the target cluster. Trafficless Restore restores data into PVCs without exposing standby workloads to application traffic.

Resource Synchronization​

ResourceSync protects Kubernetes resource manifests. It restores workloads on the target cluster in standby form. The default standby modifier records original replica counts and sets workload replicas to 0.

Failover​

DisasterOperation with operationType=failover runs observable steps such as PreCheck, FinalSync, ScaleDownSource, ScaleUpTarget, and SwitchRoles.

Reprotection​

After failover, reprotect establishes the reverse protection relationship so the new primary site can be protected by the new standby site.

Disaster Groups​

DisasterGroup uses ordered levels to orchestrate multiple instances. Instances in the same level may run in parallel; levels run sequentially.

Drills​

DisasterDrill validates backup and restore paths without directly impacting the production source cluster.

Observability​

Status, conditions, history, Kubernetes Events, Watch APIs, and statistics APIs make the system observable.