@property<EOL><INDENT>@round_3<EOL>def free_raw_disk(self):<DEDENT>
if self._free_raw_disk is None:<EOL><INDENT>self._update_disk_capacity()<EOL><DEDENT>return self._free_raw_disk<EOL>
Free raw disk capacity in GB

        Physical capacity (in GB) of all unused disks, including disks in empty
        RAID Groups.