Return_Values

   Upon successful completion, the mrd_position(3mrd) function
   returns the value MRD_STATUS_SUCCESS. If the mrd_position(3mrd)
   fails the returned status value may be set to one of the
   following values. Other values that correspond to specific SCSI
   errors may also be possible, but these are the most likely.
 

Additional information available:

MRD_STATUS_PARAM                MRD_STATUS_ROBOT_ILLEGAL_REQUEST
MRD_STATUS_CART_SIDE_INVALID    MRD_STATUS_INVALID_TYPE
MRD_STATUS_PORT_INVALID         MRD_STATUS_SLOT_INVALID
MRD_STATUS_TRANSPORT_INVALID    MRD_STATUS_ROBOT_COMM_ERROR
MRD_STATUS_DEVICE_INVALID