JPS63201733A - Dual system switching system - Google Patents

Abstract

PURPOSE:To monitor an operating state of an information processor being held in readiness when a system is being operated, by providing a first and a second signal distributing devices for connecting a first and a second information processors to a first and a second signal switching devices, respectively. CONSTITUTION:An operation of a system is executed by throwing down all switches to the upper side, and connecting the first information processor 1-1 to the first- - the n-th terminal equipments 2-1-2-n. In this case, the operating state of the second information processor 1-2 can be monitored in the first terminal equipment 2-1 by throwing down only the switch of the first signal switching device 3-1 to the lower side. Subsequently, in case a fault is generated in the first information processor 1-1, the operation of the system is executed by throwing down all the switches to the lower side, and connecting the second information processor 1-2 to the first - the n-th terminal equipments 2-1-2-n. In this case, an operating state of the first information processor 1-1 can be monitored in the first terminal equipment 2-1 by throwing down the switch of the first signal switching device 3-1 to the upper side.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to switching systems connected to terminal devices in an information processing apparatus typified by a dual-system financial statement or the like.

[Conventional technology]

Figure 2 is a system diagram showing the conventional dual system switching system.
)] are the first and second information processing devices represented by a total of N machines, (2-1), (2-2)...(2-n)
(generally denoted by (2)) are the first to third terminal devices that control and display the data of the information processing device (1), (3)
) is a signal switching device that switches between two information processing devices (1-1) and (1-2).

Next, the operation will be explained. The information processing device is constructed of a dual system of first and second information processing devices (1-4) and (1-2) in order to improve the reliability of the system.

There are multiple terminal devices of the information processing equipment so that many operators can operate them at the same time [in this example, the first terminal device (2
-1) to n-th terminal device (2-n)]. First, flip the switch upward in signal switching device #(3) and connect the first information processing device (1-1) to the first to nth terminal devices (2-11 to (2-n)). Operate the system. Next, if a failure "h5" occurs in the first information processing device (1-1), turn the switch downward in the signal switching device (3) and switch the second information processing device (1-2
) to the first to nth terminal devices (2-1) to (2-n)
K connection and operate the system.

[Problem that the invention seeks to solve]

Since the conventional dual system switching system is configured as described above, there is a problem in that it is not possible to monitor the status of the information processing equipment of the system that is disconnected from the IJ from the system that is in operation using the terminal device. .

That is, there are problems in that the status of the second information processing apparatus on standby before switching cannot be monitored on the terminal unit U, and the status of the first information processing apparatus in failure after switching cannot be monitored on the terminal unit. This invention has been made to solve the above-mentioned problems, and aims to provide a dual system switching system that allows a terminal device to monitor the status of a standby information processing device.

[Failure to solve the problem]

The dual system switching system according to the present invention includes first and second signal distribution devices that distribute signals from a first information processing device and a second information processing device into two, and a first information processing device and a second information processing device. The information processing apparatus includes a first signal switching device that switches between the two information processing devices and connects to the first terminal device, and a second signal switching device that connects to the second to nth terminal devices.

[Effect]

As a result, the second to nth terminal devices are connected to the information processing device in operation, and the first terminal device is connected to the information processing device in operation or on standby independently of the second to nth terminal devices. can be connected to.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings. 1st
In the figure, (I) is an information processing device typified by a computer, which is configured in a dual system to improve reliability. (2) controls and controls the data of the information processing device (1).
Multiple terminal devices to display, (3-1) + (3-2)
(Generally indicated by (3)) is the first and second signal for switching between two information processing devices. 1), and the other one is connected to the second to nth chant endings (2-2) to (2-n). (4-1), (4-2) (general Specifically, (4)] is a signal distribution device, one of which is connected to the first information processing device (1-1), and the other is connected to the second information processing device (1-2). They are connected to each other to perform two signal distributions.

Next, let's talk about the operation. First, turn on the first and second signal switching devices (3-1) and (a-z), turn all the switches upward, and switch the first information processing device (ILI) to the first
- The system is operated by connecting to the n-th terminal devices (2-1) to (2-n). At this time, the operating status of the second information processing device (1-2) is the same as that of the first signal switching device (3-1).
Monitoring can be performed on the first terminal device (2-], ) by pushing only the switch of ) downward.

Next, if a failure occurs in the first information processing device (1-x), the first and second signal switching devices (3-1), (
3-2), turn all the switches to the lower side and switch the second information processing device (1-2) to the first to nth ends 1Jlff (
2-1) to (2-n) to operate the system. At this time, the operation status of the first information processing device (1-1) can be changed to the terminal device t(2-1) by tilting only the switch of the first signal switching device (3-1) upward. can be monitored at

In addition, in the above embodiment, a case has been described in which the first 4i switching device is connected to the first terminal device and the second signal switching device is connected to the second to nth terminal devices. The and second signal switching devices may be connected in reverse, and the same effect as in the above embodiment can be obtained.

〔Effect of the invention〕

As described above, according to the present invention, there is provided a signal distribution device that distributes the signals of the first information processing device and the second information processing device into two, and the first information processing device and the second information processing device. Since the configuration is configured to include a signal switching device that connects to the first terminal device and another signal switching device that connects to the second to nth terminal devices, the operation of the information processing device during standby is This has the effect of allowing the status to be monitored while the system is operating.

[Brief explanation of the drawing]

FIG. 1 is a system diagram showing a dual system switching system according to an embodiment of the present invention, and FIG. 2 is a system diagram showing a conventional dual system switching system. In the figure, (1-1) and (1-2) are respectively fLL1
2 and the second information processing device, (2-1) to (2-n) are the first to nth terminal devices, respectively, (3-1), (3-2)
are first and second signal switching devices, (4-1), respectively;
(4-2) are first and second signal distribution devices, respectively. In addition, the same symbols in the figures indicate the same or corresponding parts.

Claims (2)

[Claims] (1) A first and second information processing device, a plurality of terminal devices that control or display data of these information processing devices, and a connection to the first group of terminal devices that is connected to the first or second information processing device. a first signal switching device for switching to the information processing device of the second group; a second signal switching device for switching the connection to the second group of the terminal devices to the first or second information processing device; first and second information processing apparatuses respectively connecting the two information processing apparatuses to the first and second signal switching apparatuses;
Dual system switching system equipped with a signal distribution device. (2) The plurality of terminal devices consists of the first to nth terminal devices, the first group of terminal devices consists of the above-mentioned first terminal devices, and the second group of terminal devices consists of the above-mentioned second to nth terminal devices. A dual system switching system according to claim 1, characterized in that it comprises a terminal device.