{"id":"disaster-recovery-within-version-governance","text":"Disaster recovery is constrained by the same version governance that controls normal operations: etcd backup/restore is last-resort only (not rollback), rollback is unsupported, and version coupling (OCP→CNV→HCP ordering) means a restore to a prior state may create version mismatches that cannot be corrected — making prevention through proper update governance critical.","truth_value":"IN","source":"","source_url":"","source_hash":"","justifications":[{"type":"SL","antecedents":["etcd-disaster-recovery-constraints","version-coupling-and-update-governance"],"outlist":[],"label":"depth-1 etcd DR constraints + depth-1 version governance combine to reveal DR is bounded by the same forward-only model"}],"dependents":["disaster-recovery-shares-immutability-constraint","disaster-recovery-varies-by-topology","platform-lifecycle-spans-updates-and-recovery"],"metadata":{},"explanation":{"steps":[{"node":"disaster-recovery-within-version-governance","truth_value":"IN","reason":"SL justification valid","antecedents":["etcd-disaster-recovery-constraints","version-coupling-and-update-governance"],"label":"depth-1 etcd DR constraints + depth-1 version governance combine to reveal DR is bounded by the same forward-only model"},{"node":"etcd-disaster-recovery-constraints","truth_value":"IN","reason":"SL justification valid","antecedents":["etcd-backup-not-rollback-mechanism","etcd-backup-requires-oc-debug-chroot","no-direct-etcd-access"],"label":"Three independent constraints that together define the narrow operational envelope for etcd recovery"},{"node":"etcd-backup-not-rollback-mechanism","truth_value":"IN","reason":"premise"},{"node":"etcd-backup-requires-oc-debug-chroot","truth_value":"IN","reason":"premise"},{"node":"no-direct-etcd-access","truth_value":"IN","reason":"premise"},{"node":"version-coupling-and-update-governance","truth_value":"IN","reason":"SL justification valid","antecedents":["cnv-version-must-match-ocp-version","cnv-update-ocp-first-then-cnv","hcp-update-order-management-mce-hosted","ocp-rollback-not-supported"],"label":"Version coupling rules and forward-only updates form a strict upgrade governance model"},{"node":"cnv-version-must-match-ocp-version","truth_value":"IN","reason":"premise"},{"node":"cnv-update-ocp-first-then-cnv","truth_value":"IN","reason":"premise"},{"node":"hcp-update-order-management-mce-hosted","truth_value":"IN","reason":"premise"},{"node":"ocp-rollback-not-supported","truth_value":"IN","reason":"premise"}]}}