Typically, non-SMS-managed data is data that SMS does not support or data that is in transition from non-SMS to SMS management. If it is data that SMS does not support, you can probably still use DFSMSdss to back it up and recover it, because DFSMSdss supports many kinds of data that SMS does not. If it is data in transition to SMS management, you can use DFSMShsm or DFSMSdss to back up and recover it until it is placed under SMS management.