Classifications

• • G—PHYSICS
  • G06—COMPUTING; CALCULATING OR COUNTING
  • G06F—ELECTRIC DIGITAL DATA PROCESSING
  • G06F9/00—Arrangements for program control, e.g. control units
  • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
  • G06F9/46—Multiprogramming arrangements
  • G06F9/48—Program initiating; Program switching, e.g. by interrupt
  • G06F9/4806—Task transfer initiation or dispatching
  • G06F9/4812—Task transfer initiation or dispatching by interrupt, e.g. masked
• • G—PHYSICS
  • G06—COMPUTING; CALCULATING OR COUNTING
  • G06F—ELECTRIC DIGITAL DATA PROCESSING
  • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
  • G06F1/26—Power supply means, e.g. regulation thereof
  • G06F1/30—Means for acting in the event of power-supply failure or interruption, e.g. power-supply fluctuations
• • G—PHYSICS
  • G06—COMPUTING; CALCULATING OR COUNTING
  • G06F—ELECTRIC DIGITAL DATA PROCESSING
  • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
  • G06F1/26—Power supply means, e.g. regulation thereof
  • G06F1/32—Means for saving power
  • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
  • G06F1/3206—Monitoring of events, devices or parameters that trigger a change in power modality
  • G06F1/3228—Monitoring task completion, e.g. by use of idle timers, stop commands or wait commands

Definitions

• the present invention relates to a data processing apparatus, and in particular, even when an operator accidentally turns off a power button while a software on the data processing apparatus is performing file access, the file being accessed is destroyed.
• the present invention relates to a technique for safely closing a data processing device by avoiding the problem. Background art
• this type of data processing apparatus includes a file for storing data to be processed, a business processing unit for executing predetermined business processing based on the data to be processed while accessing the file by software, and a power supply. And a power button for performing power supply to the system including the business processing unit or power supply stop.
• various business-related data processing is performed by an operation of an operator.
• the operator may accidentally turn off the power button during operation.
• the software of the business processing unit is performing file access, events such as the file being accessed may be destroyed, or the processed data stored in the file may be lost. I do.
• the data processing device is often provided with an RAS function or implements a fault tolerance function.
• the RAS function achieves the objectives of Reliability, Availability, and Serviceability. It is a general term for functions for this, and further adds two of 'Integrity (safety)' and Securi.ty (integrity), and is to be understood as a broad concept as RASIS.
• fault tolerance refers to a system characteristic in which even if a fault (failure) exists in some or all of the many elements (hardware and software) that make up the data processing device, the system does not fail. That means.
• the cause of a fault or error is called a fault.
• the user feels that the data processing equipment no longer provides the services expected by the user the data processing equipment fails. An error was said to have occurred when some of the elements of the data processing device became abnormal.
• the data processing device may be used as a terminal device of a data communication network system such as ISDN (Digital Integrated Communication Network) or LAN (Intra-Company Information Network).
• a mechanism called UPS UPS (uninterruptible power supply) is built into large general-purpose machines.
• UPS uninterruptible power supply
• the UPS is also called a non-interruptible power supply, and automatically stabilizes the voltage and frequency where the power supply voltage and frequency fluctuate significantly to prevent the data in the data processing device (large-scale general-purpose machine) from volatilizing.
• the UPS since the UPS is still expensive, considering the cost, the UPS is a medium-sized machine such as a workstation, a personal combination, etc. It is unsuitable for small machines or terminal devices. Therefore, such a data processing device is required to easily realize a fault tolerance function.
• W 2 Since the UPS is still expensive, considering the cost, the UPS is a medium-sized machine such as a workstation, a personal combination, etc. It is unsuitable for small machines or terminal devices. Therefore, such a data processing device is required to easily realize a fault tolerance function.
• an object of the present invention is to provide a data processing device that can easily realize a fault tolerance function.
• an object of the present invention is to provide a data processing blocking method capable of avoiding a risk of a file being destroyed due to an erroneous operation of a power button by an operator, and a data processing apparatus that realizes the processing blocking method.
• the reason why the file is destroyed due to the erroneous operation of the power button is that the power supply to the data processing device is immediately stopped when a power supply stop command is received, for example, when the power button is turned off. Therefore, the present invention focuses on the “interrupt function” in the data processing device, and treats the turning-off operation by the power button as a trigger of the occurrence of the interrupt, not as a trigger for stopping the power supply.
• the data processing blocking method includes a business processing unit that executes a predetermined business process based on the data to be processed while accessing a file storing the data to be processed by software; And a power supply control means for controlling the power supply to the business processing unit from the power supply control unit or the power supply control unit. Then, the power supply stop instruction is generated as a power supply stop interrupt, and the power supply stop interrupt is notified to the business processing unit so that the software prompts the end of the process currently being executed. A step of instructing the power control means to actually stop power supply when a notification of the end of processing of software for accessing the file is received. To.
• the present invention also provides a data processing device for implementing the above method.
• the data processing device comprises: a file for storing the data to be processed; A business processing unit that executes a predetermined business process based on the data to be processed, and a power supply or a power supply stop to the business processing unit.
• a power supply unit including a general processing unit for performing software control including control, a power supply unit for supplying power to the general processing unit, and a power off processing unit for stopping power supply in accordance with an instruction from the general processing unit.
• An interrupt generating means for generating a power supply stop interrupt upon receipt of a power supply stop command; andinterruption detecting means for detecting occurrence of the power supply stop interrupt.
• the interrupt detection means detects the occurrence of the power supply interruption interrupt, it notifies the business processing unit to that effect and terminates the processing being executed by software, and the processing from the business processing unit Upon receiving notification of termination, And performing a stop instruction of the power supply to the part.
• the general processing unit is provided with timer means for starting upon detection of the power supply stop interrupt, and forcibly supplying power to the power supply unit after the timer means times out. May be instructed to stop.
• the power supply stop command is generated as a power supply stop interrupt, and is notified to the business processing unit to prompt the software to end the process currently being executed, and the power is stopped only when the notification of the process end is received. Instruct the control means to actually stop the power supply. As a result, the power supply is stopped when there is no access to the file, so that a safe blockage that does not adversely affect the file and the data to be processed in the file becomes possible, and the fault tolerance function can be easily realized.
• the overall processing unit performs bridging for realizing the above method. That is, when a power supply stop interrupt that is triggered by the reception of the power supply stop command is detected, the power supply stop interrupt is notified to the business processing unit, and the processing being executed by the software is terminated. From the end of processing When the notification is received, the power supply unit is instructed to stop power supply. In the power supply section, the power-off processing means actually stops the power supply in response to the stop instruction.c In the configuration in which the general processing section includes the timer means, the power-off processing means is forcibly switched to the power supply section after the timeout. Since an instruction to stop power supply is sent, a hang-up of the data processing device can be avoided. BRIEF DESCRIPTION OF THE FIGURES
• FIG. 1 is a block diagram showing a configuration of a data processing device according to an embodiment of the present invention
• FIG. 2 is a diagram for explaining an operation when the operation of the data processing device shown in FIG. 1 is terminated. It is a flowchart. BEST MODE FOR CARRYING OUT THE INVENTION
• FIG. 1 is a configuration diagram of a data processing apparatus according to an embodiment of the present invention, the solid line is the flow of data and the broken line control signals and c showing the flow of a notification signal such as a data processing device, the A file 10 for storing the processing data; a business processing unit 20 for executing predetermined business processing based on the processing data while accessing the file 10 by software; A power button 31 for performing power supply or power supply stop, and a power supply unit 30 having a power-off processing unit 32 for actually performing power supply stop processing.
• the business processing unit 20 includes an AP master processing unit 21 and a plurality of APs under the AP master processing unit 21 as software (application programs, hereinafter referred to as “APs”) for actually performing business. It has child processing units 22 a to 22 c and AP grandchild process 23 subordinate to each AP child processing unit 22. For the sake of convenience, only the AP grandchild processing unit 23 belonging to the second AP child processing unit 22b is shown.
• the data processing device further includes an overall processing unit 40 and a termination interrupt device driver 50.
• the overall processing unit 40 includes a processing control unit 41, an IPL (initiala), a startup list storage unit 43, and an IPL (initiala).
• the processing control unit 41 is, for example, an operating system (OS) in a narrow sense having a supervisor function.
• the end interrupt device driver 50 is configured to execute the power supply stop interrupt si by turning off the power button 41 of the power supply unit 40. This is for detecting the occurrence, and notifies the processing control unit 41 of the end interrupt ei when detecting the occurrence of the power supply interruption interrupt si.
• the processing control unit 41 is responsible for allocating system resources (AP master processing unit 21, AP child processing unit 22, and AP grandchild process 23), and controls the flow of calculation in the data processing device.
• the IPL 42 loads the processing control unit 41 included in a DSD (direct access storage device) library (not shown) to the main storage area when the apparatus is started.
• the start list storage unit 43 stores an initial process start list.
• the initial process start list stores a start drive name, a start method, a waiting time, and the like.
• the IPL 42 loads the processing control unit 41 included in the DASD library and the initial process start list in the start list storage unit 43 into the main storage area, and executes the processing control unit 41. to start.
• Process control unit started 4 .1 refers to the initial process activation list and activates the AP mad processing unit .21.
• the activated AP master processing unit 21 activates a plurality of AP child processing units 22 under its control. Further, each of the activated AP child processing units 2 2. activates its own AP grandchild process 23.
• the business processing unit 20 can process the data to be processed stored in the file 10.
• FIG. 2 shows an example of the operation when the operator turns off the power button 31, and S represents a processing step.
• the end interrupt device driver 50 When detecting the occurrence of the power supply stop interrupt s i, the end interrupt device driver 50 notifies the end control e 41 to the processing control section 41 of the overall processing section 40 (S 3). Upon receiving the notification of the end interruption ei, the processing control unit 41 refers to the initial process activation list and instructs the AP master processing unit 21 of the business processing unit 20 to end the processing (S Four ) .
• the AP master processing unit 21 that has received the processing end instruction instructs the AP child processing units 22 a to 22 c running under its own to end the processing. Further, when there is an AP grandchild processing unit 23, the higher-order AP child processing unit 22b instructs the AP grandchild processing unit 23 to end the processing. As a result, subsequent access from the business processing unit 20 to the file 10 is prohibited.
• the AP child processing units 22a to 22c or the AP grandchild processing unit 23 sends an end notification to the upper processing unit when their own processing ends.
• the AP master management unit 21 monitors whether or not the subordinate AP processing units 22 a to 22 c have completed processing. Then (S5), when the processing end notification is received (YES in S5), the processing end is returned to the processing control unit 41.
• the processing control section 41 Upon receiving this processing end notification (S6), the processing control section 41 instructs the power supply section 30 to turn off the power (S7). In response to the power-off instruction ii, the power-off function unit 32 of the power supply unit 30 actually stops the power supply (S8).
• the combination of the processing control unit 41 and the power-off function unit 32 is performed when the termination interrupt device driver 50 detects the occurrence of the power supply interruption interrupt si.
• the software of the business processing unit 20 to terminate the process currently being executed by the software, and to actually stop the power supply when receiving the notification of the process completion from the software. It operates as supply control means.
• the data processing device can be safely closed.
• a timer means is provided in the processing control unit 41 to be activated upon receipt of the end interrupt ei, and when all processing is timed out, the power supply is forcibly turned off.
• the unit 30 may be instructed to stop power supply. In this way, a hang-up in the data processing device can be avoided.
• a power supply stop command for example, a turn-off operation by a power button is generated as a power supply stop interrupt, and this power supply stop interrupt is sent to the business processing unit.
• the software that accesses the software receives a notification that processing has ended, it instructs the control unit to actually stop power supply, which has the effect of stopping power supply after data processing can be stopped. is there.
• the risk of file destruction due to erroneous operation of the power button or the like can be avoided, and the fault tolerance function can be easily realized.
• the interrupt generation means upon receiving the power supply stop command, the interrupt generation means generates a power supply stop interrupt, and the overall processing unit sends the power supply stop interrupt to the business processing unit.
• the software terminates the processing being executed by the notification, and issues an instruction to stop the power supply to the power supply when it receives the notification of the processing completion from the business processing unit. It can be easily realized, and the fault tolerance function can be easily realized.

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• Engineering & Computer Science (AREA)
• Theoretical Computer Science (AREA)
• Physics & Mathematics (AREA)
• General Engineering & Computer Science (AREA)
• General Physics & Mathematics (AREA)
• Software Systems (AREA)
• Power Sources (AREA)

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Applications Claiming Priority (2)

Publications (1)

Family

ID=13012660

Family Applications (1)

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Citations (2)

• 1994
  • 1994-03-25 JP JP6055924A patent/JPH07261888A/ja active Pending
• 1995
  • 1995-02-27 DE DE19580492T patent/DE19580492T1/de not_active Ceased
  • 1995-02-27 GB GB9524106A patent/GB2295040A/en not_active Withdrawn
  • 1995-02-27 KR KR1019950705268A patent/KR960702639A/ko not_active Application Discontinuation
  • 1995-02-27 CN CN95190221A patent/CN1125989A/zh active Pending
  • 1995-02-27 WO PCT/JP1995/000301 patent/WO1995026526A1/ja active Application Filing

Patent Citations (2)

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