If there is a catastrophic data loss but the hardware is still usable, you must redeploy Azure Stack Hub. During redeployment, you can specify the storage location and credentials that are required to access backups. In this mode, there is no need to specify the services that need to be restored. Infrastructure Backup Service injects control-plane state as part of the deployment workflow.
If there is a disaster that renders the hardware unusable, redeployment is only possible on new hardware. Redeployment can take several weeks while replacement hardware is ordered and arrives in the data center. Restoring control-plane data is possible at any time. However, restoration is not supported if the version of the redeployed instance is more than one version later than the version used in the last backup.
The following figure shows the high-level workflow for the backup and restore process after a catastrophic failure.
Figure 43. Recovery workflow