@SuppressWarnings("javabugs:S6466")
  public void setTierDataDirs(String[][] tierDataDirs) {
    formulateDataDirs(tierDataDirs);
    this.tierDataDirs = tierDataDirs;
    // TODO(szywilliam): rewrite the logic here when ratis supports complete snapshot semantic
    setRatisDataRegionSnapshotDir(
        tierDataDirs[0][0] + File.separator + IoTDBConstant.SNAPSHOT_FOLDER_NAME);
  }
if the folders are relative paths, add IOTDB_DATA_HOME as the path prefix
iotdb-core/datanode/src/main/java/org/apache/iotdb/db/conf/IoTDBConfig.java