Оживление Квант 4С

[form]

максимальный размер диска для RT-11, ЕМНИП - 32 мб

Не совсем так.
32Mb - это максимальный размер устройства с файловой структурой в RT-11, но никто не мешает сделать разбивку как в DU - в этом случае применение не будет ограничено одним RT-11.

.SH DEV:DU

Device    Status                   CSR     Vector(s)
------    ------                   ---     ---------
  DU      Resident                172150   154

          DU0: is set PORT =  0, UNIT =  0, PART =  0
          DU1: is set PORT =  0, UNIT =  1, PART =  0
          DU2: is set PORT =  0, UNIT =  2, PART =  0
          DU3: is set PORT =  0, UNIT =  3, PART =  0
          DU4: is set PORT =  0, UNIT =  3, PART =  1
          DU5: is set PORT =  0, UNIT =  3, PART =  2
          DU6: is set PORT =  0, UNIT =  3, PART =  3
          DU7: is set PORT =  0, UNIT =  3, PART =  4
          D10: is set PORT =  0, UNIT =  3, PART =  5
          D11: is set PORT =  0, UNIT =  3, PART =  6
          D12: is set PORT =  0, UNIT =  3, PART =  7
          D13: is set PORT =  0, UNIT =  3, PART =  8
          D14: is set PORT =  0, UNIT =  3, PART =  9
          D15: is set PORT =  0, UNIT =  3, PART = 10
          D16: is set PORT =  0, UNIT =  3, PART = 11
          D17: is set PORT =  0, UNIT =  3, PART = 12
          D20: is set PORT =  0, UNIT =  3, PART = 13
          D21: is set PORT =  0, UNIT =  3, PART = 14
          D22: is set PORT =  0, UNIT =  3, PART = 15
          D23: is set PORT =  0, UNIT =  3, PART = 16



.

DU также позволяет работать с полноразмерным большим устройством и без разбивки, но уже не на уровне файловой структуры RT-11, а прямыми операциями I/O.