Disaster Recovery scenarios

Migration between Kubernetes clusters is initiated from the primary cluster, provided that peer clusters are connected, configured for Disaster Recovery (DR), and the application stack is online.

During migration, the system orchestrates three primary components: application metadata, application data, and DNS endpoints. The latest metadata snapshot is replicated to the target cluster before taking the application offline on the source. Simultaneously, the Data Replication CR manages the role swap of the application data, transitioning the target to 'Primary' and the source to 'Secondary' using InfoScale Volume Replicator. Finally, DNS resource records are updated to reflect the new mapping of endpoints to the target cluster.