2 Disaster Recovery Impacted Area
The following table describes scenarios about the impacted areas during CNC Console disaster recovery:
Table 2-1 Disaster Recovery Scenarios Impact Information
| Scenario | Requires Disaster Recovery or re-install of CNE? | Requires Disaster Recovery or re-install of cnDBTier? | Requires Disaster Recovery or re-install of CNC Console? | Comments |
|---|---|---|---|---|
| Scenario 1: Complete Site Failure | Yes | Yes | Yes | |
| Scenario 2: cnDBTier Corruption | No | Yes | No | DBTier must be restored from backup. Re-install of CnDBTier can be considered, if restoring from backup is not possible. Use helm upgrade if DB configuration is changed |
| Scenario 3: Console Configuration Database Corruption | No | No | No | Backup and restore of configuration database is required on the impacted site. This needs periodic backup. (Applicable for M-CNCC IAM) |
| Scenario 4: Deployment Failure | No | No | Yes | CNC Console DB is not restored. Only helm uninstall/install is done. (Applicable for M-CNCC IAM, M-CNCC Core and A-CNCC Core) |
| Scenario 5: NF Instance Failure | No | No | Yes | The NF endpoints must be updated in the custom values.yaml file and helm upgrade must be performed to incorporate the latest endpoints (Applicable at M-CNCC Core and A-CNCC Core). |