Infrastructure Backup Service creates a MASBackup folder automatically. This folder is a Microsoft-managed share. Azure Stack Hub stores its backup data in the MASBackup folder. You can create shares at the same level as the MASBackup folder, however, do not use this folder to store your own data or any backup data. Only folders or storage data that are created by Azure Stack Hub belong in the MASBackup folder.
Use the fully qualified domain name (FQDN) and region in your folder name to differentiate backup data from different clouds. The FQDN of your Azure Stack Hub deployment and endpoints is the combination of the Region parameter and the External Domain Name parameter.
For more information, see Azure Stack Hub datacenter integration—DNS.
The AzSBackups backup share is hosted on fileserver01.company.com. That file share can contain a folder, created during the Azure Stack Hub deployment, that uses the external domain name, and a subfolder that uses the region name, as follows:
You are encouraged to store backup data for all Azure Stack Hub components in the region folder. Network switches, HLH, and so on, in their own subfolders, as follows:
The following figure shows a Microsoft-recommended example of an SMB target folder structure.
Figure 42. Example of an SMB target folder structure