Each member in a SMS SYSPLEX maintains its own DASD Volume SMS and MVS status in the configuration. If you remove or delete a SMS member from the SMS SYSPLEX, its DASD volume's SMS and MVS data is not deleted from the shared ACDS or COMMDS. To clear this residual data from the configuration, you must allocate a new ACDS and COMMDS and then replace the current ones by activating the updated SCDS, SETSMS SCDS(scds_name).