JPH05241874A - Centralized monitoring device - Google Patents

Abstract

PURPOSE:To make it possible to perform the switch of an active use and a standby use in short time and to prevent the lost of storage information even when a fault by which the storage information of an old active use system becomes illegible occurs. CONSTITUTION:In a centralized monitoring device composed of an information distribution device 1 inputting monitoring information and outputting it to two information processors, two information processors 2, 3 processing monitoring information and outputting display information only when it is an active use system and a display device 4 displaying display information, monitoring information is periodically distributed to the two information processors 2, 3, respectively, from the information distribution device 1 and the state matching of the both information processors 2, 3 is periodically performed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention can switch two information processing devices to a working system and a standby system in a short time, and can always reliably store information and maintain the current state. Central monitoring device.

[0002]

2. Description of the Related Art Conventionally, there are two information processing devices, a working system and a standby system, and processing information is input only from the processing unit to the working system information processing device by an instruction from a keyboard or mouse. There is known a centralized monitoring device that is configured to output display information to a display device.

That is, in this conventional centralized monitoring device,
Only the active information processing unit processes the monitoring information, and stores the information, holds the current state, and displays the screen. Also, when switching between the active system and the standby system, copy the stored information and collect the current state information before switching.
The information processing unit is duplicated by being configured to monitor.

[0004]

However, in this conventional centralized monitoring apparatus, it takes a long time to switch between the active and standby states, the monitoring is interrupted for a long time, and the accumulated information of the old active system becomes unreadable. If the error occurs, there is a problem that the stored information is lost.

The present invention has been made in view of the above problems, and it is possible to switch between the active and standby in a short time, and even when a failure occurs such that the stored information of the old active system cannot be read. The purpose is to provide a centralized monitoring device in which accumulated information is not lost.

[0006]

In order to achieve the above object, a centralized monitoring device of the present invention, an information distribution device for inputting monitoring information and outputting it to two information processing devices, and processing the monitoring information, Output the display information only in the active system 2
In a centralized monitoring device including one information processing device and a display device that displays the display information, the information distribution device periodically distributes the monitoring information to the two information processing devices, and A state adjusting means for periodically adjusting the state of the processing device is provided.

[0007]

According to the centralized monitoring apparatus having the above-mentioned configuration, the status adjusting means periodically distributes the monitoring information from the information distribution apparatus to both the active and standby information processing apparatuses,
Since information processing can be performed in parallel, there is no need to collect the current state or copy the stored information when switching between the active system and the standby system, and the switching time can be greatly shortened.

Further, even if the stored information of the old working system is broken at the time of switching between the working system and the spare system, since the same information is held in the old spare system, the stored information is not lost. The accuracy of the status information at the time of the active / standby switching becomes extremely high.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a centralized monitoring device according to an embodiment of the present invention. The centralized monitoring device includes an information distribution device 1, two information processing devices 2 and 3, and a display device 4. There is.

The information distribution device 1 inputs the monitoring information and outputs the monitoring information to the information processing devices 2 and 3. In addition, the information processing devices 2 and 3 process the input monitoring information, accumulate the information in the magnetic disks 7 and 8 connected to each, and hold the current state, and one of the information processing devices that is the active system. Only 2 or 3 outputs the information to the display device 4. Further, the display device 4 holds display information from the active information processing device 2 or 3 and displays a designated screen in accordance with an input request from the keyboard 5 or the mouse 4 connected to the display device 4. It has become.

The centralized monitoring device is capable of switching the information processing devices 2 and 3 between the active system and the standby system by the method described below, and two information by the method described later. The state of the processing devices 2 and 3 is adjusted.

That is, when the information processing apparatus 2 is in the active system and the information processing apparatus 3 is in the standby system when switching between the active and standby states, first, the keyboard 5 or the mouse 6 is used to switch the active / spare state to the display device 4. When the switching request is input (a), the display device 4 outputs the active / standby switching request to the active information processing device 2 (b). The active system information processing device 2 that has input the switching request outputs a working / spare switching request to the standby system information processing device 3 (c), and when the switching request is received, the standby system information processing device 3 processes the response. Output to the device 2 (d). Then, the information processing device 2 that receives this response
Becomes a standby system and notifies the information processing apparatus 3 that the system has become a standby system (e).

On the other hand, the information processing device 3 which has received the notification e
Becomes the active system, and the information processing device 2
(F), the processing as the active system is started (g), and the information processing device 2 receiving the notification f stops the output of the monitoring information to the display device 4 at this point (h). ), Switching between the active and standby of the information devices 2 and 3 is completed. Incidentally, when the active system and the standby system are further switched from this state, only the information processing devices 2 and 3 are reversed, and the rest is the same as the above, and therefore its explanation is omitted.

This centralized monitoring device is adapted to periodically adjust the states of the two information processing devices 2 and 3. Next, the flow of the process for adjusting the states will be described with reference to FIG. To do. In FIG. 2, the magnetic disks 7 and 8 are omitted for simplification.

The information processing device 2 is the active system, and the information processing device 3 is
Is a standby system, the active system standby device 2 regularly collects information. At this time, the active system standby device 2
Notifies the information distribution device 1 of the start of information collection, and also notifies the information processing device 3 of the start of collection (i), and the information processing device 3 enters the information collection waiting state.

Next, the status information from the information distribution device 1 is 2
It is output to each of the two information processing devices 2 and 3 (j).
Then, the two information processing devices 2 and 3 collect the above-mentioned state information and correct the state inconsistency between the two information devices 2 and 3 which occurs due to the missing of the information while performing the periodic information. Even when the information processing device 2 is the active system and the information processing device 3 is the standby system, the information processing devices 2 and 3 are simply reversed, and the other aspects are the same as the above, and therefore the description thereof is omitted. ..

Thus, according to this centralized monitoring device,
Since the information distribution device 1 periodically distributes the monitoring information to both the active and standby information processing devices 2 and 3, and performs information processing in parallel, switching between the active and standby systems. Sometimes it is not necessary to collect the current state or copy the stored information, and the switching time can be greatly shortened. Also, even if the accumulated information of the old working system is broken when switching between the working system and the spare system, the same information is retained in the old spare system, so the accumulated information is not lost and the working / spare system is not lost. The accuracy of the state information at the time of switching is extremely high.

The centralized monitoring apparatus of the present invention is not limited to the above embodiment, and various modifications may be made without departing from the gist of the present invention.

[0019]

As described above, according to the centralized monitoring apparatus of the present invention, the active / standby switching can be performed in a short time, and the stored information of the old active system cannot be read. Even if you do, the stored information will not be lost.

[Brief description of drawings]

FIG. 1 is a block diagram showing a centralized monitoring apparatus according to an embodiment of the present invention.

FIG. 2 is a block diagram illustrating a flow of a process of adjusting a state of the centralized monitoring device.

[Explanation of symbols]

 1 information distribution device 2, 3 information processing device 4 display device 5 keyboard 6 mouse 7, 8 magnetic disk

Claims (1)

[Claims] 1. An information distribution device that inputs monitoring information and outputs the information to two information processing devices; two information processing devices that process the monitoring information and output display information only in the case of an active system; In a centralized monitoring device comprising a display device for displaying display information, the monitoring information is periodically distributed from the information distribution device to the two information processing devices, and the status of both information processing devices is regularly adjusted. A centralized monitoring device characterized in that it is provided with a state adjusting means for carrying out an automatic operation.