This option is used to control whether or not smbd in Samba 3.0 should fallback to the algorithm used by Samba 2.2 to generate user and group RIDs. The longterm development goal is to remove the algorithmic mappings of RIDs altogether, but this has proved to be difficult. This parameter is mainly provided so that developers can turn the algorithm on and off and see what breaks. This parameter should not be disabled by non-developers because certain features in Samba will fail to work without it. yes