public static String generateNativeGuid(DbClient dbClient,Volume volume) throws IOException {
  StorageSystem device=dbClient.queryObject(StorageSystem.class,volume.getStorageController());
  return String.format("%s+%s+" + VOLUME + "+%s",_deviceTypeMap.get(device.getSystemType()),device.getSerialNumber(),volume.getNativeId());
}

public static String generateNativeGuid ( DbClient dbClient , Volume volume ) throws IOException { StorageSystem device = dbClient . queryObject ( StorageSystem . class , volume . getStorageController ( ) ) ; return String . format ( "%s+%s+" + VOLUME + "+%s" , _deviceTypeMap . get ( device . getSystemType ( ) ) , device . getSerialNumber ( ) , volume . getNativeId ( ) ) ; }
generates the format storagesystem + serialnumber + volume + nativeid native guid for volume objects
