We recommend that you use the SMB share or NAS targets to store the collateral you used to deploy the Azure Stack Hub, and the switch-configuration backup information.
During the HLH and Azure Stack Hub deployment, the deployment engineer copies important configuration files, such as switch configurations, BitLocker recovery key, and deployment files, to a folder on the HLH. At the end of the deployment, the deployment engineer provides these files for backup along with any other backups.