JPS62189545A - Start processor for calculator system - Google Patents

Abstract

PURPOSE:To carry out the optimum start processing without an operator's mistaken judgment by defining diagnosis information on the main memory of a calculator system that has to ensure its continuity and start processing information and automatically making a diagnosis of the main memory at the time of the start processing of the calculator. CONSTITUTION:A start control part 4 initializes the order (i) (i=1) of n- information areas and their start type (j) (j=1) in the main memory diagnosis information part 5. If the information area in the main memory diagnosis information part 5 is effective, that is, the i-th information area is present, initial images in the main memory 2 and those in submemory device 3 are compared by he specified sizes according to the main memory content comparison information of the main memory diagnosis information part 5. If the compared result shows that they are not the same images, that is, the main memory is destructed, the type of the start processing of the main memory diagnosis information part 5 is compared with the type of the worst start processing so far. If the current start processing is worse than the previous one, the type of the start processing is updated.

Description

Detailed Description of the Invention (Technical Field of the Invention) The present invention relates to a start processing device for a computer system, and particularly aims to monitor and control a plant while collecting plant information, and to improve system continuity. The present invention relates to a start processing device for a computer system that is suitable for application to a computer system that requires auxiliary storage.

[Technical background of the invention and its problems]

Generally, when performing start processing for a computer system that has an auxiliary storage device, it is necessary to take into account the state of the main memory at the time of start, that is, the presence or absence of corruption, and adopt the optimal start processing method that matches the current state of the main memory. be. However, conventionally, this start processing has relied on the operator's judgment, and it has been necessary to perform various unique start operations depending on the type of optimal start processing method.

This not only made the operation of the computer system complicated, but also caused a risk of serious accidents due to malfunction.

[Purpose of the invention]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to solve the above-mentioned problems of the prior art, and to facilitate the unique start operation in order to eliminate judgment errors caused by operator judgment during start processing of a calculation-specific system. An object of the present invention is to provide a start processing device for a computer system, which enables optimal start processing at automatic or manual start.

[Summary of the invention]

In order to achieve the above object, the present invention provides a main memory diagnostic information section that defines main memory diagnostic information for a computer system for each information area of the main memory, and stores optimal start processing information that matches the state of corruption of the main memory. When the computer system is started, the state of the main memory is diagnosed based on the information in the main memory diagnostic information section, and the optimum start processing information is selected from the start processing information section based on the diagnosis result to start the main memory. The present invention provides a start processing device for a computer system that includes processing means for initializing memory.

[Embodiments of the invention]

Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram of a star 1 processing device of a computer system according to an embodiment of the present invention. As shown in the figure, the arithmetic and control device 1 includes a main memory 2 and an auxiliary storage device 3.
In conjunction with this, the plant (not shown) is monitored and controlled. On the other hand, the start control unit 4 starts processing after the start operation of the arithmetic control unit 1, and the main memory diagnostic information unit 5
The destruction state of the main memory 2 is checked for each information area by checking the contents of a specific address based on the information from the start processing information section 6 and the information from the start processing information section 6,
The initial image is loaded from the auxiliary storage device 3 to the information area determined to be destroyed in the main memory 2 and other information areas that need to be initialized due to the destruction of the information area, and the start process is executed. do.

FIG. 2 is an explanatory diagram showing the configuration of the main memory diagnostic information unit 5 shown in FIG. 1, in which n information areas store main memory content comparison information and the type of start processing when this area is destroyed.

FIG. 3 is an explanatory diagram showing the configuration of the start processing information section 6 shown in FIG. 1, which stores the start processing of ryJ related to main memory data transfer (restoration) information.

Further, FIG. 4 is an explanatory diagram showing an example of the configuration of the main memory 2 shown in FIG. 1, and shows a state in which it has a plurality of information areas.

Now, the operation of this configuration will be explained based on the flowchart of FIG. 5.

First, when starting the system, when the start operation of the arithmetic control bag @1 is performed (step 10), the process moves to the start control section 4. Start control section 4
Then, the order 1 and start type j of the information area of the main memory diagnostic information unit 5 are initialized (i=1, J=1) (step 20).

If the information area of the main memory diagnostic information section 5 is valid, that is, the i-th information area right (step 21), the main memory contents comparison information of the main memory diagnostic information section 5 is used to determine the initial image of the main memory 2 and the auxiliary storage device 3. The comparison is performed only for the specified size (step 22). If the comparison results show that the images are not the same, that is, the main memory is destroyed (
Step 23), the type of start processing in the main memory diagnostic information section 5 and the type of start processing that was the worst up to the previous time (j
The larger the value, the worse the condition).Step 24)
If the type of start processing this time is worse than the previous one, the type of start processing is updated (step 25). for example,
In the main memory configuration example shown in FIG. 4, if start processing 2 is when the main memory of information area 2 is destroyed, and start processing 4 is when the main memory of information area 3 is destroyed, then information area 1 is When the main memory is normal and both information areas 2 and 3 are in the main memory corrupted state, the start processing type is 4. If the type of start processing is determined to be a complete destruction state of the main memory 2, that is, if j=m (step 26), step i=n+1 is set to stop the subsequent diagnostic processing of the main memory 2. 27), initialization processing of all main memories 2 is performed according to the start type j (step 29). In addition, if all main memories 2 are not in a destroyed state, the order i of the information area is updated (i = j + 1) in order to proceed to the next main memory diagnostic process (step 28), and the steps after step 21 are performed. The process is repeated to check the final type of start process, and the main memory 2 is initialized according to the type based on the information in the start process information section 6 (step 29).

As described above, in this embodiment, it is possible to automatically diagnose the main memory 2 and realize the optimal start processing that matches the current state of the main memory 2. This eliminates the need for operators to make judgments regarding operations and the state of the main memory, thereby improving operability.

Note that the implementation of the present invention is not limited to the above,
Not only is it possible to automatically perform optimal start processing when a computer is started, but it is also possible to perform even more optimal start processing in combination with a conventional start processing method. Moreover, it is naturally possible to perform optimal start processing even in automatic restart processing without operator intervention within the scope of the present invention.

〔Effect of the invention〕

As described above, according to the present invention, it is possible to define main memory diagnostic information and start processing information for a computer system that requires system continuity, and to automatically diagnose the state of the main memory during computer start processing. This makes it possible to perform optimal start processing that eliminates operator errors in judgment, and also allows start processing to be performed with the same operation regardless of the type of start processing, which is effective in improving operability. A start processing device for a computer system can be provided.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a start processing device of a counting machine system according to an embodiment of the present invention, FIG. 2 is an explanatory diagram showing the data structure of the main memory diagnostic information section shown in FIG. 1, and FIG. is an explanatory diagram showing the data structure of the start processing information section shown in FIG. 1, FIG. 4 is an explanatory diagram showing an example of the configuration of the main memory shown in FIG. 1, and FIG. 5 is an explanatory diagram showing the configuration of the main memory shown in FIG. 3 is a flowchart showing the processing operation of FIG. 1... Arithmetic control unit (CPU), 2... Main memory,
3... Auxiliary storage device, 4... Start control section, 5... Main memory diagnostic information section, 6... Start processing information section. Applicant's agent: Sato - Yuhi Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] The main memory diagnostic information section defines the main memory diagnostic information of the computer system for each information area of the main memory, the start processing information section stores the optimal start processing information according to the state of corruption of the main memory, and the start processing information section of the computer system. a process of diagnosing the state of the main memory based on information in the main memory diagnostic information section, and selecting optimal start processing information from the start processing information section based on the diagnosis result to initialize the main memory; 1. A start processing device for a computer system, comprising: means.