JPS6246349A - Duplicating system activator - Google Patents

Abstract

PURPOSE:To considerably reduce trouble to be generated at activation by activating a system through a control panel in an operating chamber. CONSTITUTION:When the 1st switch 21 on the control panel 3 is turned on, the on signal is supplied to the 1st power source controller 23a to enter the power source of the 1st processing system 4a. Consecutively, when the 2nd switch circuit 25 on the control panel 3 is turned on, the on signal is supplied to the 2nd power source controller 23b to enter the power source 4b of the 2nd processing system. When both the 1st and 2nd switch circuits 21 and 25 are turned on, a logic circuit enters the power source of a system supervisory device 7 in response to the turning on. Then the system supervisory device 7 issues an activation instruction to the 1st processing system. Thus the system can be activated.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application This invention relates to a starting device for a duplex system having two processing systems.

(b) Conventional technology
:In a redundant system that includes two processing systems and terminal devices, each with a central processing unit, storage device, etc., conventionally, the power is turned on for each component device such as each processing system and terminal device in advance. The system was started by the central processing unit's IPL (initial program load) operation.

(c) Problems to be solved by the invention The processing system includes an operation room in which a control console is installed;
Equipment rooms in which each processing system, terminal equipment, etc. are installed may exist in separate locations. In such cases, with the conventional startup method described above, when starting/stopping the system, the system must go from the control room to the equipment room to turn on/off the power to each component, which is extremely troublesome. .

In view of the above, it is an object of the present invention to provide a redundant system starting device that allows the system to be started from a control console in the operating room even if the operating room and equipment room are separated.

(d) Means and operation for solving the problems The duplex system starting device of the present invention includes a first power supply control device for controlling on/off of the power supply of the first processing system, and a second power supply control device on the equipment room side. a second power supply control device that controls on/off power of the processing system; and a system monitoring device that monitors the operation of the central processing units of both processing systems;
a first switch circuit that inputs a power on/off signal to the power control device; and a first switch circuit that inputs a power on/off signal to the second power control device;
A power-on circuit is provided that includes a second switch circuit that inputs an off signal, and a logic circuit that powers on the system monitoring device in response to power-on of the first and second switch circuits.

In this duplex system starting device, when the first switch circuit of the control console is turned on, the on signal is given to the first power supply control device, and the power of the first processing system is turned on accordingly. Then, when the second switch circuit of the control console is turned on,
The on signal is given to the second power supply control device, and the power of the second processing system is turned on accordingly. Moreover, when both the first switch circuit and the second switch circuit are turned on,
In response, the logic circuit powers up the system monitoring device. The system monitoring device then gives a startup command to the first processing system. This will start the system.

(E) Examples The present invention will be explained in more detail with reference to Examples below.

FIG. 2 is a block diagram showing the configuration of a system in which the present invention is implemented. In this system, a control console 3 is provided in an operation room 1, and other equipment is provided in an equipment room 2. In other words, in the equipment room 2, there is an act system (first
A central processing unit (CPU) 4a constituting a processing system), a Fronbi disk 5as process input/output device 5a, and a central processing unit 4b constituting a standby system (second processing system)
, floppy disk 5b, process input/output device 6b.
Furthermore, a system monitoring device 7 and a peripheral switching device 8 are provided, and peripheral (terminal) devices such as a magnetic disk 9, a display 10, and a line printer 11 are connected to the peripheral switching device 8.

The power supply system for this system is shown in FIG.

The control console 3 is provided with a switch 21 for powering on the act system and a switch 25 for powering on the standby system, and an on signal from the switch 21 is applied to the act system power control device 23a via the relay 22. It looks like this.

This power supply control device 23a is included in the central processing section 4a together with the CPU 24a. Similarly, the ON signal of the switch 25 is also given to the standby system power control device 23b via the relay 26.

When the power supply control device 23a receives the power-on signal, the power supply control device 23a controls the floppy disk 5a and the process input/output device 6a, then the peripheral switching device 8 and the peripherals connected thereto, such as the magnetic disk 9, the display 1o, and the line printer 11. The power of each device is turned on in the order of the device and then the CPU 24a. Standby power control device 23
b also turns on the power of each device in the same sequence as the act system power supply control device 23a.

The switch 21 and 250 ON signals are both input to an AND circuit 27 and an OR circuit 28. Further, the output of the AND circuit 27 turns on the relay 30 via the timer 29, and this on signal turns on the power to the system monitoring device 7. On the other hand, when both switches 21 and 25 are turned off, the output of the OR circuit 28 falls to low, the 1□ relay 30 is turned off, and the power to the system monitoring device 7 is also turned off. switch 21,
125+7) i f, i, -7 (7), i7”r4 off DOi ￥328 (7) $ 1□ Since the power does not fall to low, the system monitoring device 7
1 The power is not turned off.

□ Next, the startup operation of this embodiment system will be explained with reference to the flowchart shown in FIG.

When starting up, the control console 3 is first turned on, and then the power switch 21 of the control console 3 is turned on. As a result, the relay 22 operates, and the power to the act system power supply control device 23a is turned on. Accordingly, the floppy disk 5a and the process input/output device 6a are powered on, and after a certain period of time (this time is set by the timer in the power supply control device 23a), the peripheral switching device 8, the magnetic disk 9, the display lO, and the line printer 11 are turned on. The power is turned on. Subsequently, the power of the CPU 24a is turned on, and the operation of the CPU 24a is stopped (step 5TI in FIG. 3).

Next, the power switch 25 of the control console 3 is turned on.

As a result, the relay 26 operates, and the standby system power control device 23b is powered on. In response, the floppy disk 5b etc. is powered on, and after a certain period of time, the CP
The power of U24b is turned on, and the operation of cpU24b is stopped (Step 7 5T2).

When the switches 21 and 25 are on, a logic "1" signal is obtained at the output side of the AND circuit 27, and this signal is output by the timer 29.
is added, and the relay 30 operates after the timer setting time,
Power supply for system monitoring device 7 □・11::1
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BAc'in6 (!:゛i,,1゜The system monitoring device 7 transfers the IPL program to the AC CPU 24a. The CPU 24a stores this IPL program in the memory (Step 5T4) and executes the IPL.

In other words, load the execution program from the floppy disk 5a! (Xey7'S"5), +L7"Hat゛7
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"M"'yt; 17 is notified of activation (step ST?). 0 peripheral devices such as magnetic disk 9, display 10, line printer 1, etc. Peripheral switching device 8'' switching L&Z,k.

exclusive use. (Step 5T8). Further, the IPL program is transferred to the standby CPU 24b (step 5T9). And standby CPU24
Start IPL for b (s, 1
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R4% (D''eGMtit 11.) Then, the system operation program is executed (step 5T12).

On the other hand, the standby CPU 24b receives IPL activation from the active CPU 24a and executes the PL program. That is, the execution program is loaded from the floppy disk 5b (step 5T13). Then initialize the operation system O8. Step 5
T14), the standby system startup notification is sent to the active system CPU.
24a (step 5T15), and thereafter performs failure monitoring of the act system CPU 24a (step 5T16).

To stop the system operation, when the switch 21 is turned off, the power of the power control device 23a is turned off, and the active system CP
The power of U24a, floppy disk 5a, and process input/output device 6a is turned off.

However, the power of the standby system, peripheral switching device 8, system monitoring device 7, etc. is not turned off. Conversely, when only the switch 25 is turned off, the power to the standby equipment is turned off, but the power to the active equipment, peripheral switching device 8, system monitoring device 7, etc. is not turned off.
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0'' and goes low, the system 1 system monitoring device q is powered off, and other
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(f) Effects of the invention According to this invention, the switch provided on the control console
1chi circuit + 7) 7-4 y f j'j=work
417 Easy &Z': A 7"0 start; 4 movement/stop is possible, so the control console and equipment room are separated 'nFF
1K*Mt 'l'Mt, T: b, 5 cars. @c::
b, a5, -tvm ll□Bow: There is no need to go to the weapon chamber, so it takes much less time to start up.
Improved to 1□.

[Brief explanation of drawings]

FIG. 1 shows the electrical power of the system in which this invention is implemented.
1], I, Yao, 4°13. FIG. 3 is a block diagram showing the configuration of the system. FIG. 3 is a flow diagram for explaining the startup operation of the system. l: Control room, 2: Equipment room, 3: Control console, 7: System monitoring device, 21/25
: Power switch, 23a/23b: Power control device. 24a24b: CPU. 27: AND circuit.

Claims (1)

[Claims] (1) In a redundant system in which the equipment room side has two processing systems, each including a central processing unit, and these processing systems are operated by a control console, the power supply for the first processing system is connected to the equipment room side. A first power supply control device that controls on/off of the power supply of the second processing system, a second power supply control device that controls the power supply of the second processing system, and a system monitoring device that monitors the operation of the central processing units of both processing systems. a first switch circuit that inputs a power on/off signal to the first power control device in the control console; and a second switch circuit that inputs a power on/off signal to the second power control device. and a power-on circuit including a logic circuit that powers on the system monitoring device in response to power-on of the first and second switch circuits, and after the system monitoring device is powered on, the system monitoring device A duplex system startup device configured to give a startup command to the first processing system.