JPH02302845A - Data processing system with memory dump function - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (Summary) In a data processing system consisting of a main data processing unit and an auxiliary data processing unit, the auxiliary data processing unit converts memory data into main data in response to a dump command from the main data processing unit. Regarding the memory dump control method that processes dumps to the processing unit, the purpose is to be able to respond appropriately even when the main data processing unit is down, and the auxiliary data processing unit is A command that determines whether a command issued by the main data processing unit is a command related to dump processing when data processing is executed according to the standalone mode separated from the main data processing unit by being in the state The configuration includes a type determination unit, and when determining that the command is related to dump processing, the command is forcibly executed and the read memory data is sent to the main data processing unit, and the command is not related to dump processing. When it is determined that it is, the configuration is configured to notify that it is in standalone mode without executing the command.

[Industrial application field]

The present invention relates to a data processing system comprising a main data processing unit and an auxiliary data processing unit.
Therefore, the present invention relates to a memory dump control method in which an auxiliary data processing unit processes memory data to be dumped to the main data processing unit in response to a dump command from the main data processing unit, particularly when the main data processing unit is in a down state. The present invention relates to memory dump control that enables appropriate handling of data.

Main data processing unit and auxiliary data processing unit.

There is a data processing system that includes a computer and a computer to perform predetermined data processing. In such a data processing system, when the main data processing unit is in a down state, the auxiliary data processing unit independently performs data processing. From now on, it will be necessary to equip the auxiliary data processing unit with a means that allows it to appropriately process data when operating alone.

[Prior Art] When the main data processing unit is in a down state, the auxiliary data processing unit is set to an independent mode according to an operation mode setting means such as a switch provided in a terminal, etc., so that the main data processing unit Data processing will be performed separately from the . From now on, conventionally, even if the auxiliary data processing unit were set to standalone mode and the main data processing unit issued a command, the auxiliary data processing unit would ignore it and perform the data processing according to the command issued by itself. A configuration was adopted in which the process was executed.

[Problems to be Solved by the Invention] However, the main data processing unit is usually configured so that even if it is in a down state, some functions can be processed normally according to a maintenance tool mechanism or the like. A typical example of such processing is memory dump processing, which reads out control information, logging information, etc. developed in the memory of the auxiliary data processing unit. In other words, even when the main data processing unit is down, the dump command' is issued to the auxiliary data processing unit as normal data processing.

However, in the prior art, when the main data processing unit goes down, the auxiliary data processing unit/1 ignores all commands issued from the main data processing unit as unreliable. There is. From now on, when the main data processing unit goes down, the auxiliary data processing unit will have to perform dump processing. However, since the terminal provided in the auxiliary data processing unit is originally an auxiliary function, it is not usually a high-performance device that can serve as a storage device or an output device for dump processing. Therefore, in the prior art, there is a problem that when the auxiliary data processing unit 7) is operating in the independent mode, the memory data of the auxiliary data processing unit 7) cannot be dumped.

The present invention has been made in view of the above circumstances, and by treating the dump command issued when the main data processing unit 1- is in the down state as valid,
It is an object of the present invention to provide a memory dump control method that allows memory data of an auxiliary data processing unit to be dumped.

(Means for solving problems) FIG. 1 is a diagram showing the basic configuration of the present invention.

In the figure, ■ indicates a data processing system main body equipped with the present invention;
2 is a main data processing unit that executes the main data processing of the data processing system main body l; 3 is an auxiliary data processing unit that executes commands issued by the main data processing unit 2; 4 is a terminal included in the main data processing unit 2, which is a high-performance terminal equipped with a storage mechanism or an output mechanism to serve as a dump processing destination; 5 is a terminal provided in the auxiliary data processing unit 3 and is a single-function terminal; 6 is a terminal 5;
an operation mode setting means for setting the operation mode of the auxiliary data processing unit 3 to an independent mode;
7 is a command issuing unit, which is a main data processing unit 2;
8 is a data receiving unit that receives data sent from the auxiliary data processing unit 3. 9 is a command reception unit. Department,
A device that accepts commands from the command issuing unit 7, 1
0 is an operation mode management unit that manages the operation mode of the auxiliary data processing unit 3; 11 is a command type determination unit that determines whether a command A command processing unit 12 determines whether the command received by the reception unit 9 is related to dump processing, and the command type determination unit 11 determines whether the command is related to dump processing. 13 is a data transmitting unit that executes the processing of the command when the command is determined; 14 is an execution data transmitting unit included in the data transmitting unit 13; , command processing section 12
15 is a status notifying unit included in the data transmitting unit 13, which notifies that the operation mode of the auxiliary data processing unit 3 is in the single mode mode.

[Effect].

In the present invention, when the main data processing unit 2 is in the down state and the auxiliary data processing unit 3 is set to the standalone mode according to the operation mode setting means 6, the command reception section 9 When the command from 2 is accepted, the command type determination unit 11
The receiver determines whether the attached command is a command related to dump processing. When determining that the command is related to dump processing in this determination, the command type determination unit 1
1 determines that the command has been issued according to the normally operating mechanism of the main data processing unit 2 and starts the command processing section 12, and the execution data transmission section 14,
The memory data obtained by the execution of this command processing section 12 is processed to be dumped to the main data processing unit 2.

On the other hand, when determining that the received command is not a command related to dump processing, the command type determination unit 11 determines that the command was not issued according to a normally operating mechanism of the main data processing unit 2. The status notification unit 15 is activated based on the determination, and the status notification unit 1 is activated.
5 processes to notify the main data processing unit 2 that the auxiliary data processing unit 3 is operating in standalone mode.

As described above, in the present invention, by treating the dump command issued when the main data processing unit 2 is in the down state as valid, it becomes possible to dump the memory data of the auxiliary data processing unit 3. .

C Example] Hereinafter, the present invention will be explained in detail according to examples.

FIG. 2 shows the overall configuration of a data processing system to which the memory dump control method of the present invention is applied.

In the figure, the same parts as those explained in FIG. 1 are indicated by the same symbols. 4d is a Freonbi, 4b is a disk, 4C is a system printer, 4d is a line, and 4e is a man-machine interface, which the main data processing unit 2 is equipped with. Further, 5a is an input terminal such as a league terminal, and 5b is an output terminal such as a journal printer, which the auxiliary data processing unit 3 is provided with.

In normal operation mode (hereinafter referred to as normal mode),
Input data from the input terminal 5a is processed/processed by the main data processing unit 2, outputted to the output terminal 5b, and stored on the disk 4b. When a display request is made, the data is processed/processed on the display screen of the man-machine interface 4e or the system. Various forms are output to the printer 4C or sent to the host system via the line 4d. During processing in such normal mode, if a problem with the disk 4b etc. occurs on the main data processing unit 2 side and data processing cannot continue, the auxiliary data processing unit 3 By outputting the input data from the input terminal 5a to the output terminal 5b in a predetermined format, a standalone mode is entered in which the minimum amount of work can be continued.

FIG. 3 shows the detailed system configuration of this data processing system.

As shown in FIG. 3, the main data processing unit 2 is
MPU2Q and memory 2 that expands the processing program 22
1, the auxiliary data processing unit 3 includes an MPU 30
, communication area 33, control program 34, and operation mode area 3
5 and a battery 32.

In addition, a terminal 5 (
The input terminal 5a, the output terminal 5b, or a terminal with other input/output functions) is equipped with the operation mode setting means 6 as explained in FIG. 1, and according to this operation mode setting means 6, The operation mode of the auxiliary data processing unit 3 is set to either the normal mode or the independent mode.

The MPU 20 is a microprocessor that controls the main data processing unit 2, and the MPU 30 is a microprocessor that controls the auxiliary data processing unit 3.
The communication area 33 is an area for exchanging various control information and data between the main data processing unit 2 and the auxiliary data processing unit 3, and the operation mode area 35 is an area where the operation mode of the auxiliary data processing unit 3 is normal. The battery 32 is an area for storing whether the main data processing unit 2 is in the mode or the standalone mode, and the battery 32 is an auxiliary power source for retaining the data stored in the memory 31 when the main data processing unit 2 side is powered off. In addition, the main data processing unit 2 sends a reset signal to the auxiliary data processing unit 3 to initialize the operation of the auxiliary data processing unit 3, and the auxiliary data processing unit 3 also sends a reset signal to the auxiliary data processing unit 3. , an interrupt signal is sent to the main data processing unit 2 to notify it of input data from the terminal 5, output results to the terminal 5, and various status information.

FIG. 4 shows the program configuration of the main data processing unit 2 and the auxiliary data processing unit 3.

The download control section 201 in the figure is a program for storing the control program 34 and control information for the auxiliary data processing unit 3, and the terminal data processing section 202 is connected to the main data processing unit i. This is a program for performing input/output processing with the terminal 4, and the memory dump unit 203 reads memory information of the auxiliary data processing unit 3 and sends and receives various control information and data via the communication area 33. This is a program for the independent mote control unit 30.
2 is a program for performing input/output processing with the terminal 5 in standalone mode, and a command/operation mode determination unit 303 analyzes commands from the main data processing unit 2 and determines whether they are valid or invalid. This is a program for exchanging data with the single mode control unit 302 in the single mode, and the command processing unit 304 receives commands issued from the main data processing unit 2 and the single mode control unit 302. The terminal control unit 305 is a program for processing (including a dump function), and the initialization processing unit 306 is a program for performing input/output processing with the terminal 5. This is a program to initialize the .

FIG. 5 shows the memory configuration of the auxiliary data processing unit 3, and FIG. 6 is an explanatory diagram of data sent from the main data processing unit 2 to the auxiliary data processing unit 3.
FIG. 7 shows an explanatory diagram of data sent from the auxiliary data processing unit 3 to the main data processing unit 2.

Next, the processing contents of the present invention will be described in detail according to a flowchart that is executed by the command/operation mode determination section 303 of the auxiliary data processing unit 3 when receiving a command issued by the main data processing unit 2. 8th
This flowchart is shown in the figure.

As shown in step 1, the command/operation mode determination unit 303 executes a process of accepting a command issued by the main data processing unit 2, and then, in the next step 2, executes a process of checking the accepted command. Subsequently, in step 3, it is determined whether or not there is an error in the received command according to this checking process. When it is determined in step 3 that there is no error, in step 4, the operation mode area 35 is checked to determine whether or not the operation mode of the auxiliary data processing unit 3 is set to single mode 1ζ. . When it is determined in step 4 that the mode is not standalone mode, that is, when it is determined that the normal mode is set, proceed to step 5.
The received command notifies the command processing unit 304 of the received command, thereby instructing execution of the command. Then, in the next step 6, the execution result is sent to the main data processing unit 2 via the main body interface control section 301.

On the other hand, if it is determined in step 4 that the mote is a single mote, the process proceeds to step 7, where the receiver determines whether the received command is a command related to dump processing.

In other words, it is determined whether the command is related to a continuous request for control information, logging information, etc. expanded in the memory 31. When it is determined in step 7 that the command is related to dump processing, it is determined that the command is legitimately issued according to the maintenance tool mechanism even if the main data processing unit 2 is down, and step 8 Then, the receiver instructs the execution of the dump process by notifying the command processing unit 304 of the command related to the dump process. Then, in the next step 6, the read memory data is processed to be sent to the main data processing unit 2 via the main body interface control section 301.

On the other hand, if it is determined in step 7 that the command is not related to dump processing, it is determined that the command is not a legitimately issued command from the main data processing unit 2, and the process proceeds to step 9. ``Operating in standalone mode'' is set in the status part of the data to be notified, and in the following step 10, the main body interface control unit 3
By notifying the main data processing unit 2 of this status data via 01, processing is performed to notify that the issued command will not be executed.

Also, if it is determined in step 3 that there is an error in the received command, proceed to step 11, set "command error" in the status part of the data to be notified to the main data processing unit 2, and continue. Step 10
Then, the data in this status is sent to the main data processing unit 2.
By notifying , the conventional process of notifying that there is an error in the issued command will be performed.

In this way, in the present invention, a dump command issued when the main data processing unit 2 is in a down state is treated as valid.

Although the illustrated embodiment has been described, the present invention is not limited thereto. For example, the present invention can be applied as is to a device in which the operation mode setting means 6 is provided separately from the terminal 5.

〔Effect of the invention〕

As explained above, according to the present invention, the main data processing unit 2 processes a command related to dump processing that is issued when the main data processing unit 2 is in a down state to be treated as valid. Even in a down state, memory data in the auxiliary data processing unit 3 can be dumped to the main data processing unit 2 side. From now on, the terminal 5 provided in the auxiliary data processing unit 3 can be replaced with an auxiliary, single-function terminal.

[Brief explanation of drawings]

FIG. 1 is a diagram showing the principle configuration of the present invention. FIG. 2 is an overall diagram showing the overall configuration of a data processing system to which the present invention is applied. FIG. 3 is a system configuration diagram of a data processing system to which the present invention is applied. Figure 5 is a program configuration diagram of a data processing system to which the present invention is applied, Figure 5 is a memory configuration diagram of an auxiliary data processing unit, and Figure 6 is an explanatory diagram of data sent from the main data processing unit to the auxiliary data processing unit. , FIG. 7 is an explanatory diagram of data sent from the auxiliary data processing unit to the main data processing unit, and FIG. 8 is a flowchart 1 executed by the present invention. In the figure, 1 is a data processing system main body, 2 is a main data processing unit, 3 is an auxiliary data processing unit, 4 and 5 are terminals, 6 is an operation mode setting means, 7 is a command issuing unit, 8
9 is a data reception unit, 9 is a command reception unit, 10 is an operation mode management unit, 11 is a command type determination unit, 12 is a striped command processing unit, ]: 3 is a data transmission unit, 14 is an execution data transmission unit, 15 is a status notification Department. Patent applicant: Rihito, BFN Co., Ltd.
Patent attorney Mori 1) Hiroshi (and 2 others) Uradan Kateigsho Ori 1 knit memo Figure 5 So-early people diagram

Claims (1)

[Scope of Claims] A main data processing unit (2), an auxiliary data processing unit (3), and an operation mode setting means (6), wherein the auxiliary data processing unit (3) is connected to the main data processing unit. (2) executes data processing according to commands issued from the main data processing unit (2), and when there is a failure in the main data processing unit (2), it is set to independent mode according to the operation mode setting means (6) and performs data processing independently. In a data processing system for processing to execute, said auxiliary data processing unit (3), when set in standalone mode, said main data processing unit (2)
a command type determination unit (11) that determines whether a command issued from the command is a command related to dump processing; and when determining that the command is a command related to dump processing according to the command type determination unit (11), The command is forcibly executed and the read memory data is sent to the main data processing unit (2), and when it is determined that the command is not related to dump processing, the command is not executed and the memory data read is sent to the main data processing unit (2). (2) A memory dump control method characterized by processing to notify that the device is in standalone mode.