JPS5856063A - Communication system of system supervising device between information processors - Google Patents

Abstract

PURPOSE:To allow the processor of one system to perform necessary communication with the processor of the other system immediately only by writing information in an information storge part without waiting until the processor of the other system starts reading operation, by providing a system supervising device with an information storage part having storage areas corresponding respective information processors. CONSTITUTION:A system supervising device 2 is connected between information processors 1A and 1B which advance processing independently. This device 2 is provided with an information storage part 5 which has information storage areas 5A and 5B corresponding to the processors 1A and 1B, and a storage control part 4 provided with write detection parts 4A and 4B corresponding to the areas 5A and 5B. Further, the processors 1A and 1B are provided with interruption processing parts 6a and 6B which when an interruption from the device 2 is addressed to their systems, read corresponding contents of the storage part 5. The device 2 controls the coupling of common-use devices 3-0-3-N with the devices 1A and 1B, which write information in the storage part 5 by themselves without waiting unit the other system starts reading operation, thereby performing communication with the other system immediately.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides an inter-information processing device communication system in a data processing system having a plurality of information processing devices that can independently proceed with processing, particularly a system monitoring device that controls the system configuration, etc. The present invention relates to an inter-information processing device communication method using the device.

Recently, 2
For example, an input/output device can be configured so that it can be connected to any processing device, and the input/output device (i.e., a shared device) can be secured as needed for processing, or an abnormality in the system environment can be detected. Data processing systems are now equipped with system monitoring devices that specialize in control.On the other hand, in data processing systems, when communicating between information processing devices, shared DASD is used.
) method is adopted. This method is.

Commonly Accessible Dust (DASD: Dl
ractAccessableStorage
[)evice), usually a magnetic disk device, is provided,
The state of other systems was always checked by accessing the dust in the own system. Therefore, unless there is access from other systems, it is not possible to notify the information of the own system to other systems.

SUMMARY OF THE INVENTION An object of the present invention is to provide an information storage unit having an information storage area corresponding to at least each information processing device, and to detect a write process to the information storage unit and write the information to the information storage unit, in order to eliminate the above-mentioned drawbacks with a simple configuration. In addition to detecting a write detection unit that sends an interrupt signal to a corresponding information processing device, each information processing device has a function that performs a process of sequentially opening the above-mentioned information storage area corresponding to its own information processing device when an interrupt signal is detected. This is achieved by having the following. The present invention will be described in detail below using one drawing.

The figure shows two embodiments of the present invention. In the figure, lA and IB
are information processing groups [, 2 are system monitoring devices, 3-0 to n are shared devices, 4 is a storage control unit for accessing the information storage unit 5, and 4A and 4B are storage units, respectively. Interrupt signal generators 6A and 6B detect writing to and send interrupt signals to other information processing devices, and check the cause of the interrupt. The contents of section 5 include interrupt processing sections 7A and 7B, which are interrupt signals.

Next, the operation will be explained. The system monitoring device 1 normally controls which information processing device each shared device 3 should be coupled to, based on designations from each information processing device or designation from a panel on the system monitoring device. When each information processing device is proceeding with processing independently using the shared device connected to each.

For example, when the information processing device IB requests the information processing device IA to change the allocation of shared devices or to take over due to a failure, the following will occur.

First, the information processing device IB performs a process of writing communication contents into the corresponding storage section 5A. This writing is performed by the writing detection section 4B.
, and an interrupt signal 7B is sent to the information processing device IA. The interrupt processing unit 6A of the information processing device IA recognizes that the 9 interrupt value 7B is from the system monitoring device 2, and performs a process of successively loading the contents of the storage unit 5A corresponding to the information processing device IA. . Thereby, the information processing device IA can immediately know the request from the information processing device IB.

Therefore, according to the present invention, without waiting for other information processing devices to spontaneously come one after another, and without performing any particular communication operation by simply writing to the storage section, It becomes possible to perform necessary communication with other information processing devices.

[Brief explanation of the drawing]

The figure shows an embodiment of the present invention. In the figure, lA and IB
2 is an information processing device, and 2 is a system monitoring device. 3 is a shared device, 4A and 4B are write detection units, 5 is an information storage unit, 6A and 6B are interrupt processing units, and 7A and 7B are interrupt signals.

Claims (1)

[Claims] In a communication method between information processing devices of a data processing system including a plurality of information processing devices that can independently perform processing and a shared device connected to any of the Q devices, a method for monitoring the system as one of the shared devices The system monitoring device includes an information storage section having an information storage area corresponding to at least each information processing device, and detects write processing to the information storage section and sends an interrupt signal to the information processing device corresponding to the information storage section. 1. A communication method between information processing devices, characterized in that each information processing device, upon detecting an interrupt signal, performs a process of sequentially opening the information storage area corresponding to its own information processing device.