| 摘要 |
PURPOSE:To prevent the loss of an important key for fault diagnosis of a multiplex computer, by collecting the information existing on a main memory of the series having a fault by means of remaining nondefective series. CONSTITUTION:If a fault arises to a computer of a series (a), the generation of the fault is informed to a CPU1b of a series (b). Receiving the information on the fault discontinuation of the series (a), a main memory information shunting program 2b-2 of the series (b) keeps the information existing on a main memory 2a of the series (a) in a main memory information preserving region 3b-2 of an external storage device (bulk memory) 3b of the series (b) via a signal system C and devices 5a and 5b. A CPU1a can give an access a main memory 2b of the remote system via the devices 5a and 5b. While the CPU1b can give an access to the memory 2a of the remote system via the devices 5b and 5a respectively. |
