{
  "id": "backup_server_topology",
  "label": "Backup Server Topology Canonical",
  "phase": "phase-13",
  "category": "backup_server_recovery_infrastructure",
  "status": "ACTIVE_DH_MIRROR",
  "purpose": "Backup Server Topology Canonical is the Phase 13 authority that decides where recoverable YEFF AI v1 state is allowed to travel after the client server becomes backup-eligible.",
  "function": "Define the recovery topology with primary and secondary backup roles, provider separation, network path, custody boundary, replication direction and topology evidence before backup jobs can be trusted as infrastructure resilience.",
  "technology_requirements": [
    {
      "technology": "Backup Server Topology",
      "required_for": "Backup Server Topology Canonical is the Phase 13 authority that decides where recoverable YEFF AI v1 state is allowed to travel after the client server becomes backup-eligible.",
      "required_by_phase": "phase-13",
      "required_by_category": "backup_server_topology",
      "required_by_buckets": [
        "Prerequisites",
        "Installation",
        "Configuration",
        "Validation",
        "Observable Evidence",
        "Failure Modes & Recovery",
        "Completion & Promotion"
      ],
      "expected_version": "MISSING until Backup Server Topology is implemented and validated in the future Execution & Monitoring Panel",
      "validation_command": "MISSING until backup_server_topology can prove scope, evidence, execution state and promotion decision",
      "evidence_path": "/home/yeff/public_html/devon/canon/execution/state/dh_sources/backup_server_topology.json",
      "status_source": "Documentation Hub + future Execution & Monitoring Panel",
      "blocking_if_missing": true,
      "failure_impact": "If this gate fails, later manifests, replication and restore tests can all pass while the backup estate remains structurally unable to survive the failure it was designed to cover."
    }
  ],
  "depends_on": [],
  "used_by": [],
  "overview": {
    "summary": "Backup Server Topology Canonical is the Phase 13 authority that decides where recoverable YEFF AI v1 state is allowed to travel after the client server becomes backup-eligible.",
    "function": "FUNCTION: Define the recovery topology with primary and secondary backup roles, provider separation, network path, custody boundary, replication direction and topology evidence before backup jobs can be trusted as infrastructure resilience.",
    "system_position": "This category owns the shape of the recovery system. It is not the encrypted policy itself and not a single node definition. The exclusive risk here is false redundancy: backup may exist, but if every copy depends on one provider, one region, one credential path or one network route, Devon has storage duplication rather than recovery topology.",
    "failure_impact": "If this gate fails, later manifests, replication and restore tests can all pass while the backup estate remains structurally unable to survive the failure it was designed to cover."
  },
  "failure_impact": "If this gate fails, later manifests, replication and restore tests can all pass while the backup estate remains structurally unable to survive the failure it was designed to cover."
}