@Override
  public int[] getDiskDirSizes() {
    int[] result = new int[diskDirSizes.length];
    System.arraycopy(diskDirSizes, 0, result, 0, diskDirSizes.length);
    return result;
  }
The default disk directory size unit.
geode-core/src/main/java/org/apache/geode/internal/cache/DiskStoreAttributes.java