JPH05224782A - Power source disconnection system - Google Patents

Abstract

PURPOSE:To facilitate operations at the time of disconnecting a power source by normally executing next starting even when any power source disconnection factor is unexpectedly generated concerning the power source disconnection system for an electronic computer system. CONSTITUTION:This system is provided with a power source disconnection instruction reporting means 10 to report a power source disconnection instruction depending on the disconnection of a power source switch, a remote power source disconnection instruction reporting means 11 to report the power source disconnection instruction from any distant place, and a designated time power source disconnection instruction reporting means 12 to report the power source disconnection instruction at scheduled power source disconnection time designated in advance. The correspondent power source disconnection cause is detected by the power source disconnection instruction reporting means 10, remote power source disconnection instruction reporting means 11 or designated time power source disconnection instruction reporting means 12, and the power source disconnection instruction is reported. Further, a system end processing means 13 receiving the report executes various processings for keeping the consistency of the system, a power source disconnection requesting means 14 outputs a request to a power source disconnection mechanism 15, and the power source of an electronic computer system 16 is disconnected.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power-off system for an electronic computer system.

[0002]

2. Description of the Related Art Conventionally, the power supply of an electronic computer system has been consistently cut by hardware. In addition, the power was cut off immediately when the power cut factor occurred.

[0003]

In the conventional power-off method described above, in the case of an operating system that requires termination processing in order to maintain consistency at the next startup, if the power-off factor suddenly occurs, the system will start up next time. It sometimes hindered the raising.

An object of the present invention is to provide a power-off system for an electronic computer system which can normally start up next time even if a power-off factor suddenly occurs.

[0005]

According to a first power-off method of the present invention, a power-off instruction notifying means for notifying a power-off instruction by turning off a power switch, and the power-off instruction notifying means instructing power-off. In this case, the system termination processing means performs termination processing for maintaining consistency in the system, and power-off requesting means for requesting the power-off mechanism to turn off the system power after the system termination processing means ends. The control method is such that the termination process is performed after the power-off factor is generated.

In the second power-off system of the present invention, a remote power-off instruction notifying means for notifying a power-off instruction from a remote location, and a system inside the system when the remote power-off instruction notifying means instructs the power-off A system termination processing unit that performs termination processing for maintaining consistency, and a power-off requesting unit that requests the power-off mechanism to turn off the system power after the system termination processing unit are terminated. A control method is adopted in which termination processing is performed later.

According to the third power-off method of the present invention, the time-specified power-off instruction notifying means for notifying the power-off instruction at the predetermined power-off scheduled time and the time-specified power-off instruction notifying means are provided. System termination processing means for performing termination processing for maintaining consistency in the system when a power-off instruction is notified, and power-off for requesting the power-off mechanism to power-off the system after the system termination processing means is terminated It is composed of a requesting means, and adopts a control method of performing termination processing after the occurrence of a power-off factor.

[0008]

The present invention will be described below with reference to the drawings. FIG. 1 is a flowchart showing the overall configuration of the present invention.

Reference numeral 10 in the drawing denotes a power-off instruction notifying means for giving a power-off instruction by turning off the power switch. 11
Is a remote power-off instruction notifying means for giving a power-off instruction from a remote place. Reference numeral 12 denotes a time-designated power-off instruction notification means for notifying a power-off instruction when a power-off scheduled time designated in advance is reached. Power-off instruction notifying means 10,
The remote power-off instruction instruction means 11 or the time-specified power-off instruction instruction means 12 detects the corresponding power-off factors and notifies the power-off instruction. The system termination processing means 13 that has received the notification performs various processing for maintaining the consistency of the system. When the processing of the system termination processing means 13 is completed, the power-off requesting means 14 is turned off by the power-off mechanism 15.
Make a request to. The power-off mechanism 15 that has received the request turns off the power of the electronic computer system 16.

FIG. 2 is a functional block diagram showing an embodiment of the present invention.

In the figure, reference numeral 200 is a host computer system 2.
10, a communication line 201 for communicating with 10, and a power switch 202, an interrupt generation mechanism 203, a primary storage 204, a secondary storage 205, a power-off mechanism 206, and an internal clock 20.
7 is a conceptual view of an electronic computer device having the number 7 and 7.

The electronic computer device 200 has a file 22.
When there is a write to 0, the content is temporarily stored in the buffer 221 on the primary storage 204, and then written to the actual file 220 on the secondary storage 205 asynchronously. To be done.

The power switch 2 is operated by the system administrator.
When 02 is pressed and a power-off instruction is issued, the power-off instruction notifying means 230 causes an interrupt via the interrupt generation mechanism 203 to notify the power-off instruction.

The host computer system 210 gives an instruction via the communication line 201 to turn off the computer device 200. The remote power-off instruction notification means 240 receives the power-off instruction. Upon receiving the power-off instruction from the host, the remote power-off instruction notifying means 240 generates an interrupt via the interrupt generation mechanism 203 and notifies the power-off instruction.

The time-designated power-off instruction notifying means 250 is
The internal clock 207 is constantly monitored, and when the time coincides with a preset power-off scheduled time, an interrupt is generated through the interrupt generation mechanism 203 and a power-off instruction is notified.

The interrupt handler 231 receives the interrupts generated by the power-off instruction notification means 230, the remote power-off instruction notification means 240, and the time-specified power-off instruction notification means 250, respectively. Upon receiving the interrupt, the interrupt handler 231 activates the system termination processing means 232. The system termination processing means 232
Forces the process 222 currently running in the operating system to terminate. The system termination processing means 232 that has completed the forced termination processing of the process next
The contents of the file left in the buffer 221 on the primary storage are written to the file 220 on the secondary storage. The system termination processing means 232 which has finished the writing processing of the file to the secondary storage next activates the power-off requesting means 233. The power-off request means 233 issues a power-off request interrupt to the power-off mechanism 206 via the interrupt generation mechanism. The power-off mechanism 206 that has received the interrupt turns off the power of the electronic computer device 200.

[0017]

As described above, according to the power-off method of the present invention, the termination process is performed after the power-off factor is generated and the power is turned off. The effect is that it can be done.

Further, since the termination processing is automatically performed, the operation at the time of turning off the power becomes easier as compared with the conventional case.

[Brief description of drawings]

FIG. 1 is a flowchart showing the overall configuration of the present invention.

FIG. 2 is a functional configuration diagram showing an embodiment of the present invention.

[Explanation of symbols]

 10 power-off instruction notification means 11 remote power-off instruction notification means 12 time-specified power-off instruction notification means 13 system termination processing means 14 power-off request means 15 power-off mechanism 16 electronic computer system 200 electronic computer apparatus 201 communication line 202 power switch 203 Interrupt generation mechanism 204 Primary storage 205 Secondary storage 206 Power-off mechanism 207 Internal clock 210 Host computer system 220 Actual file on secondary storage 221 Buffer on primary storage 222 Process 230 Power-off instruction notification means 231 Interrupt handler 232 system Termination processing means 233 Power-off request means 240 Remote power-off instruction notification means 250 Time-specified power-off instruction notification means

Claims (3)

[Claims] 1. In a computer system having a power-off mechanism, a power-off instruction notifying means for notifying a power-off instruction by turning off a power switch, and a system in the system when the power-off instruction is notified by the power-off instruction notifying means And a power-off requesting means for requesting the power-off mechanism to turn off the power of the system after the system-end processing means is finished. Power off method. 2. In a computer system having a power-off mechanism, remote power-off instruction notifying means for notifying a power-off instruction from a remote location, and within the system when power-off is instructed by the remote power-off instruction notifying means System termination processing means for performing termination processing for maintaining the consistency of
And a power-off requesting means for requesting the power-off mechanism to turn off the power of the system after the system termination processing means. 3. A computer system having a power-off mechanism, a time-specified power-off instruction notifying means for notifying a power-off instruction when a power-off scheduled time designated in advance has come, and the time-specified power-off instruction notifying means. System termination processing means for performing termination processing for maintaining consistency in the system when a power-off instruction is notified by the power-off instruction, and a power supply for requesting the power-off mechanism after the system termination processing means to power off the system. A power supply disconnection method characterized by being configured with disconnection request means.