private void moveFilesOrDirectories(Collection<Path> paths, Path targetDirectory)
      throws IOException {
    for (Path userFile : paths) {
      Path destination = targetDirectory.resolve(userFile.getFileName());
      moveFileOrDirectory(userFile, destination);
    }
  }
Returns the dir name used to back up this DiskStore's directories under. The name is a
concatenation of the disk store name and id.
geode-core/src/main/java/org/apache/geode/internal/cache/backup/FileSystemBackupWriter.java