This OID gives the enumerated source of the storage auto-configuration setting's current effective value, showing whether it is defined locally here or inherited from a parent or default. This tells an admin whether newly-inserted local disks on servers under this scope will be auto-configured because of a setting made right here, or because of a setting inherited from elsewhere. If source shows inheritance from the default org, an admin who wants auto-configuration disabled just for one sub-organization would need to override it locally rather than assume the local value already differs.