private void mkDataDirs(List<String> folders) {
    for (String folder : folders) {
      File file = FSFactoryProducer.getFSFactory().getFile(folder);
      if (FSUtils.getFSType(folder) == FSType.OBJECT_STORAGE) {
        continue;
      }
      if (file.mkdirs()) {
        logger.info("folder {} doesn't exist, create it", file.getPath());
      } else {
        logger.info(
            "create folder {} failed. Is the folder existed: {}", file.getPath(), file.exists());
      }
    }
  }
total space of each tier, Long.MAX_VALUE when one tier contains remote storage
iotdb-core/datanode/src/main/java/org/apache/iotdb/db/storageengine/rescon/disk/TierManager.java