storage name: flat storage / none
  size parameter: 16
  virtual size:   16
  actual size:    16
storage name: multilevel storage / none
  size parameter: 2^4
  virtual size:   16
  actual size:    16
storage name: flat storage / symmetric
  size parameter: 16
  virtual size:   16
  actual size:    9
storage name: multilevel storage / symmetric
  size parameter: 2^4
  virtual size:   16
  actual size:    9
