JP2745477B2 - Data processing device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data processing apparatus having a check function of a DPS (Data Processing System), a personal computer, and other file systems, in other words, a self-diagnosis function. In particular, the integrity of the file system can be constantly maintained by automatically and periodically checking the file system and repairing the file system using the idle time of the computer. The present invention relates to such a data processing device.

2. Description of the Related Art Conventionally, in a DPS, a personal computer, and other various data processing devices, there is a program for checking a file system.

However, due to this special factor of “checking the file system”, factors such as effective use of system quality resources, the amount of work performed by the operator, and monitoring and maintenance of the file system are contradictory. There are major obstacles to realizing the functions of automation and regular startup.

Problems to be Solved by the Invention When problems in checking and repairing a conventional file system are enumerated, inconveniences occur in the following three points.

The first point is that in checking and restoring a file system, the environment for executing these processes is a special situation in which reading / writing to a disk is prohibited. The problem is that it is difficult to automatically check the file system because it must be done.

The second point is that it is uncertain when the file system will be destroyed, so it is desirable that the file system be checked periodically in a feasible environment, but checking the file system takes a long time. So unconditionally, and
It is difficult to adopt the method of always executing the job periodically because of the operating status of the system.

The third point is that if a certain process is performed, it is possible to repair the automation, it is repaired without knowing what part was repaired and how,
There was a problem in the unconditional execution of processing such as file deletion and block "0" clearing because of inconsistency.

As described above, there are many problems in checking and repairing the conventional file system, and the functions of automating self-diagnosis and activating the self-diagnosis aiming at optimization cannot be easily realized.

More specifically, an object of the present invention is to provide a data processing device capable of performing the following four operations.

First, a state in which the user's program is not running is automatically confirmed, or a time preset by the user is detected, and the state in which the user's program is not running is automatically determined based on the time. Having a function that automatically prepares the environment so that the check function of the file system and the repair function of the file system can be operated after confirmation.

Second, the results of the file system check were transferred to the CRT.
When the file system is automatically repaired, output to a CRT or printer etc. to notify the user of the inconsistency by outputting it to an output device such as a printer or printer. .

Third, in automatically repairing the file system,
When a file is deleted and data is corrected, such as clearing to "0", the file and data must be saved in a specific area so that the file and data can be restored after they are not lost.

Fourth, the system should have a function that allows the user to determine in advance whether to automatically repair the file system.

An object of the present invention is to realize a data processing device having the above functions.

Means for Solving the Problems According to the invention of claim 1, at least a main storage device and an external storage device are provided,
In a data processing device having a self-diagnosis function for checking a file system by a file system check program existing in an external storage device, a program operation for determining whether or not a user program is operating in the data processing device. State determination means, and time setting means for setting a time at which a check program of the file system is operated, wherein the user program is not in operation at the time set by the time setting means and in the data processing device. When the determination is made, the file system check program is executed by operating the file system check program.

In the invention of claim 2, at least a main storage device and an external storage device are provided,
In a data processing device having a self-diagnosis function for checking a file system by a file system check program existing in an external storage device, a check result output means for outputting a check result of the file system to an output device, and an external storage device A check result / data storage means for storing the check result of the file system and the data before the check are provided, and a repair execution permission setting means for setting whether or not the file system can be restored. If the check has been performed, the check result is output to the check result output means, the check result of the file system and the data before the check are stored in the external storage device, and the file system is restored. .

Embodiment Next, an embodiment of the data processing apparatus of the present invention will be described in detail with reference to the drawings.

FIG. 2 is a block diagram showing an embodiment of a main configuration of the data processing apparatus according to the present invention. In the drawing, 1 is a CRT or other display device, 2 is an external storage device, 3 is a printer, 4 is an input / output control unit, 5 is a control unit, 6 is a file system information storage area, and 7 is an automatic self-diagnosis system control unit. Show.

As shown in FIG. 2, the data processing apparatus according to the present invention has a main feature in that an automatic self-diagnosis system control unit 7 is added. In addition, the contents of the file system information storage area 6 are partially changed.

FIG. 1 is a functional block diagram showing one embodiment of a main part configuration of a data processing apparatus of the present invention. Reference numerals in the drawing are the same as those in FIG. 2, reference numeral 11 is a central processing control unit, 12 is a timer control unit, 13 is a process management control unit, 21 is an execution environment maintenance control unit, and 22 is a start time check control unit. , 23 is a system check start control unit, 24 is a user process presence / absence detection unit, 25 is a check result control unit, 26
Is a file system modification control unit, 27 is a normal environment transition control unit, 28 is a physical block consistency check unit, 29 is a file management table consistency check unit, 30 is a directory structure consistency check unit, and 31 is a system modification executable / permitted. / Impossible control unit, 32 is a physical block consistency control unit, 33 is a file management table consistency control unit, 34 is a directory structure consistency control unit, 35 is a file system data save control unit, and 41 is a file system internal structure storage area. , 42 indicate an error information save area, and 43 indicates a system configuration information save area.

In the data processing apparatus shown in FIG. 1, the blocks constituting the control section 5 of FIG. 2 are in the order of 10, the blocks constituting the automatic self-diagnosis system control section 20 are in the order of 20 to 30, and the file system information is stored. The blocks that make up area 6
It is distinguished by attaching a reference number in the forties.

First, in a normal state before the check of the file system is started, the timer control unit 12 and the process management control unit 13 are always operated under the control of the central processing control unit 11.

The time obtained from the timer control unit 12 is used to detect whether it is time to start the check of the file system.

That is, the start time check control unit 22 reads out the file system check start time information preset in the system configuration information save area 43, compares it with the current time, and determines whether to check the file system. Make a decision.

The data processing device of the present invention performs such an operation.

Here, in the data processing apparatus of the present invention, the processing at the time of starting the automatic self-diagnosis program is shown in a flowchart.

FIG. 3 is a flowchart showing the flow of processing when the automatic self-diagnosis program is started in the data processing apparatus of the present invention shown in FIG. In the drawings,
# 11 indicates a step.

In step # 1, data of the comparison result is obtained from the activation time check control unit 22.

In step # 2, it is determined whether or not the system configuration information save area 43 has a preset time.

If there is a preset time, the process proceeds to the next step # 3, and it is determined whether or not the preset time has come.

On the other hand, if the time has not been set, the process proceeds to step # 4, and information indicating that there is no set time is set.

In step # 5, the result data is obtained from the user process presence / absence detection unit 24.

In the next step # 6, it is determined whether or not there is a user process. If there is no user process, the process returns to the previous step # 5, and the same determination is made.

If it is determined in step # 6 that there is a user process, the process proceeds to the next step # 7, and it is determined whether there is time data.

If it is determined in step # 7 that there is time data, the process proceeds to step # 8, and it is determined whether a state without a user process has continued for a predetermined time (for example, 30 minutes).

If the fixed time does not elapse, the next step #
The program proceeds to step 9, waits for a predetermined time, returns to step # 8, and repeats the same judgment.

If it is determined in step # 8 that the state without the user process has continued for a certain period of time or longer,
If it is determined that there is time data, the process proceeds to step # 10.

In step # 10, create an environment where you can check the file system.

Proceed to step # 11 to execute the file system check.

By the above processing of Step # 1 to Step # 11,
The automatic self-diagnosis program is started.

The system configuration information stored in the system configuration information save area 43 will be described in detail with reference to FIG.

[Functions of System Check Activation Control Unit 23] The system check activation control unit 23 is one of the control units having the most important functions in the data processing apparatus of the present invention.
One.

The function of the system check activation control unit 23 is as follows.

If the current time is the designated time according to the result of the time comparison, the result of the determination as to whether or not the file system should be checked is passed to the system check activation control unit 23, and a notification signal of this determination result is sent to the file. This signal is used to activate the system check.

Further, the system check activation control unit 23 receives, from the user process / presence / absence detection unit 24, information on whether or not the user process is currently running.

This information is created by the user process / presence / absence detection section 24 based on the information from the process management control section 13 and sent to the system check activation control section 23.

The system check activation control unit 23 determines whether or not the file system can be checked based on information obtained from the two control units, the activation time check control unit 22 and the process management control unit 13.

The criterion in this case is when a predetermined time has come and the user process is not running.

If there is no predetermined time, the file system is checked unless the user process has been running for a certain period of time.

Thus, the system check activation control unit 23
This is one of the control units having the most important functions.

Therefore, next, referring to the block diagram of FIG. 1, a system check activation control unit 23, an execution environment maintenance control unit 21, a start time check control unit 22, and a user process / presence / absence detection provided in the periphery thereof are provided. The specific operation at the time of starting the system check performed by the unit 24 will be described in detail.

FIG. 4 is a functional block diagram showing a detailed configuration example of the system check activation control section 23 and its peripheral circuits in the data processing apparatus of the present invention shown in FIG. Reference numerals in the drawings are the same as those in FIG.
a is the start time storage area, 12b is the current time storage area, 21a
Is the end processing unit of the system program, 21b is the logging processing unit, 21c is the error processing unit, 21d is the final processing unit to the file system, 21e is the environment maintenance instruction unit to the system check, 22a is the start time extraction unit, and 22b is Start and current time comparison section, 22c is current time extraction section, 22d is time check instruction section, 23a is start / enable / disable determination section, 23b is system check start instruction section, 23c is file system check execution section, 24a Is a user process detection command section, 24b is a user process check section, 24c is a process status read section, 41a is a file management table, S1 is a time coincidence signal, and S2 is information on the number of user processes.

A system check activation instruction unit 23b in the system check activation control unit 23 gives all control instructions relating to activation of the system check.

The system check start command from the system check start command unit 23b is sent to the time check command unit 22d in the start time check control unit 22, and the check of the current time and the start time is commanded.

The time check command section 22d is provided with a start time extracting section 22a.
And instruct the current time extracting unit 22c to extract the start time and the current time.

The information on the extracted time is stored in the start and current time comparison section.
The time coincidence signal S1 is sent to the time check command section 22d when the two times coincide with each other.

The time check command unit 22d outputs the time coincidence signal S1
It is sent to the system check activation command section 23b.

Next, the system check activation instruction unit 23b checks whether or not the user process exists.

In this case, the user process detection instructing unit 24a in the user process / presence / absence detection unit 24 controls and extracts data from the file management table of the file system to the process status reading unit 24c, and transfers the data to the user. Instructs it to be passed to the process check section 24b.

The user process check section 24b obtains information on the operation of the user process, finds out how many user processes are currently running, and detects information on the number of running user processes to detect the user process. Send it to the command section 24a.

The user process detection command section 24a passes the transmitted information to the system check activation command section 23b as information S2 of the number of user processes.

The system check activation instruction unit 23b instructs to activate the system check based on the time coincidence signal S1, the information S2 on the number of user processes, and the result of the determination by the activation / possible / impossible determination unit 23a.

Specifically, if the start time has arrived and the information S2 on the number of user processes is "0", an instruction is issued to the environment maintenance instruction unit 21e to the system check so that the file system can be operated. I do.

The environment maintenance instruction unit 21e for the system check includes other blocks in the execution environment maintenance control unit 21, that is, a system program end processing unit 21a, a logging processing unit 21b, an error processing unit 21c, and a final processing unit for the file system. The processing is performed on 21d and the like to prepare this execution environment.

Then, the environment maintenance instruction section 21 to this system check
e sends an end signal to the system check activation command section 23b.

The system check start instruction unit 23 receiving this end signal
b is for the file system check execution unit 23c,
Tells the file system to start a check.

By such an operation, the system check is automatically started.

If the start time is not specified from the time check command unit 22d, the presence / absence of the user process from the user process detection command unit 24a and the current time information are used.
The system check activation command section 23b automatically and periodically sends the file system check execution section 23c to the file system check execution section 23c.
You will be instructing to activate the file system check.

By such processing, the system check is automatically and periodically activated, and the system check is started.

Then, since the system check can be automatically started, the work load on the operator is reduced.

In addition, since the system check can be periodically started, the effective use of the system resources and the efficiency can be improved, and the consistency with the file system can be constantly and correctly maintained.

Next, a check operation of the file system performed by the data processing apparatus of the present invention will be described.

[Check system contents]

When the system check activation control unit 23 outputs an instruction to check the file system, the next process is started.

First, the physical block consistency check is performed by the physical block consistency check section 28, and the presence / absence of duplicate blocks, presence / absence of bad blocks, inconsistent block numbers of used blocks, and inconsistency of unused blocks. The selected block number is checked.

Next, the file management table consistency check is performed by the file management table consistency check unit 29, and the presence / absence of file type inconsistency, the consistency of the management table, and the management information of the used / unused blocks are checked. , Etc. are checked.

Further, a check of the directory structure consistency is performed by the directory structure consistency check unit 30, and there is a discrepancy between the directory entry and the file management table, and a check of the file not connected to the directory and the file system. Checks for disconnected directories, checks for inconsistencies regarding links between files, etc.

At the time of these checks, the file system existing in the external storage device 2 is transferred to the file system internal structure storage area 41 on the main storage device via the input / output control unit 4.

[Specific operation of system check]

In each of the above three check steps, the check processing is continued while referring to the file system internal structure storage area 41.

When the effect of the check and the inconsistent data are found, the inconsistent data is stored in the error information save area 42.
To record.

FIG. 5 is a diagram showing an example of error information recorded in the error information save area 42. In the drawing, * 1 indicates a recording area for the repair time.

As shown in FIG. 5, the error information save area 42 records error information including an error number, the meaning (meaning) of the error content, and detailed information thereof.

The error here means inconsistency of the file system.

For example, the line in the uppermost column of FIG. 5 indicates a duplicate block, and the error number of the contradiction is “1”.

Further, the content of the error and its detailed information are recorded.

The detailed information shows the inconsistent block number and the associated file name.

When the recording of the error information is completed, the physical block consistency check unit 28, the file management table consistency check unit
29 and the directory structure consistency check unit 30 notify the system check activation control unit 23 that each check process has been completed.

Upon receiving this notification, the system check activation control unit 23
It instructs the check result control unit 25 to output error information to the peripheral device.

The check result control unit 25 sends the content recorded in the error information save area 42 to the central processing control unit 11 as a CR.
T Instructs output to the other display device 1, external storage device 2, and printer 3, respectively.

With the above processing, the saving of the error information and the reporting thereof are completed.

Subsequently, the check result control unit 25 outputs an instruction to the file system modification control unit 26 so as to repair the file system.

Here, the processing of the data processing apparatus of the present invention when the file system is restored will be described.

FIG. 6 is a flow chart showing the flow of processing when a file system is restored in the data processing apparatus of the present invention. In the drawing, # 21 to # 28 indicate steps.

In step # 21, self-diagnosis system information is obtained from the file system configuration information.

 At step # 22, it is determined whether or not execution is possible.

If so, proceed to step # 23 to repair the file system. If the execution is not possible, the flow of FIG. 6 ends.

At step # 24, it is determined whether or not there is data for file deletion.

If there is data to be deleted, in step # 25,
Save the lost data in the external storage device 2,
If there is no data to be deleted, the process proceeds to step # 26.

Next, in step # 26, information indicating that the data has been repaired is written in a predetermined column in the error information save area 42.

In step # 27, the contents of the error information save area 42 are output to the display device 1, the external storage device 2, and the printer 3.

In step # 28, the environment is returned to the normal environment, and the flow of the file system restoration is terminated.

Referring to the block diagram shown in FIG. 1, the file system modification control unit 26 can first be set in advance by the user, thereby enabling automatic modification. This point is the same as that the check start time of the file system can be set in advance.

The idea display that allows this automatic correction is that the system configuration information file exists in the external storage device 2.
It is only necessary to register a bit in this.

FIG. 7 is a diagram showing an example of the contents of a system configuration information file. In the drawing, * 2 indicates a registration area in which the system can be modified.

As shown in FIG. 7, the system configuration information file is provided with storage areas for various types of information, and as one of them, a registration area * 2 for enabling / disabling system correction is provided. .

FIG. 8 is a diagram showing an example of a display screen when the registration of the system configuration information file is executed.

When the user executes the program for registering the system configuration information file, a screen as shown in FIG. 8 is displayed on the display device 1.

In the display state shown in FIG. 8, the user only needs to input the key of the intention display.

By this key input, the permission / inhibition of the correction corresponding to the indication of the intention of the user is registered in the registration area * 2 of the permission / inhibition of the correction of the system shown in FIG.

The data of the system configuration information file in FIG.
The file system modification control unit 26 is a central processing control unit.
By instructing 11, the data is moved from the external storage device 2 to the system configuration information save area 43.

The file system modification control unit 26 instructs the system modification execution / permission / non-permission control unit 31 to extract information on whether or not to modify the file system.

Commanded system modification execution / possible / impossible control unit 31
Extracts the previous bit information and makes a determination, and notifies the file system modification control unit 26 of the determination result.

When making a correction based on the information of the determination result, the file system modification control unit 26 sends a request to the physical block consistency control unit 32, the file management table consistency control unit 33, and the directory structure consistency control unit 34. And give instructions to perform the repair.

When the correction is not performed, of course, the restoration and other processes are not performed.

The contents of restoration performed by the physical block consistency control unit 32, the file management table consistency control unit 33, and the directory structure consistency control unit 34 are as shown in FIG.

FIG. 9 is a diagram showing a repair performed by the physical block consistency control unit 32, the file management table consistency control unit 33, and the directory structure consistency control unit 34 in the data processing apparatus of the present invention shown in FIG. FIG. 4 is a diagram showing an example of the contents of the above.

Physical block consistency control unit 32, file management table consistency control unit 33, and directory structure consistency control unit
At 34, restoration is performed in each of the steps.

When a file is deleted or the contents are cleared in this restoration process, the information is saved in the external storage device 2. This processing is performed by the file system data saving control unit 35.

The file system data evacuation control unit 35 includes these three consistency control units, that is, the physical block consistency control unit.
32, data saving requests from the file management table consistency control unit 33, and the directory structure consistency control unit 34,
It has a function of directly instructing the input / output control unit 4 to save data in the external storage device 2.

This data saving process completely solves the problem of data loss due to restoration.

The result of the restoration is written in the error information save area 42.

Further, by marking the repair time in the repair time recording area * 1, that is, the rightmost column in FIG. 5, it indicates whether the inconsistency of the file system has been corrected.

The additionally entered information in the error information save area 42 is output to the display device 1, the external storage device 2, and the printer 3 according to a command from the file system modification control unit 26.

Therefore, the user can display the repair contents on these display devices 1.
And a hard copy from the printer 3, and is also saved as a record in the external storage device 2.

When all the file system restoration processes are completed, the physical block consistency control unit 32, the file management table consistency control unit 33, and the directory structure consistency control unit 34
An end signal indicating that each step has been completed is output to the file system modification control unit 26.

Upon receiving this end signal, the file system modification control unit 26 outputs a command to the normal environment transition control unit 27 to escape from the special environment for checking the file system and to operate a normal user program. Return to the environment.

By the above operation, the file system check,
And the repair process is completed.

As described in detail above, in the present invention, the first
A data processing device having at least a main storage device and an external storage device, and having a self-diagnosis function of checking a file system by a file system check program existing in the external storage device;
A program operating state determining means for determining whether or not the user program is operating in the data processing apparatus; and a time setting means for setting a time at which a check program of the file system is operated. At a set time and when it is determined that the user program is not in operation in the data processing device, the file system check is executed by running the file system check program. I have.

With such a configuration, the system check can be started automatically and periodically.

Second, in a data processing device having at least a main storage device and an external storage device and having a self-diagnosis function of checking a file system by a file system check program existing in the external storage device, A check result output means for outputting a check result of the file system to an output device; a check result / data storage means for storing the check result of the file system and data before the check in the external storage device; A repair execution permission / prohibition setting means for setting, when the repair permission / prohibition setting means is set to permit execution of the repair, a check result is output to the check result output means, and the file is stored in the external storage device. Saves the system check results and pre-check data, and And so as to perform the repair of mail system.

With such a configuration, the user can easily grasp the current state of the file system, and can quickly and appropriately deal with a trouble or the like.

Therefore, according to the data processing apparatus of the present invention, the system check can be automatically started, thereby reducing the operator's work load.

In addition, since automatic and regular startup is possible, it is possible to improve the effective use of system resources, improve efficiency, and constantly maintain the consistency with the file system.

Further, by outputting the check result of the file system to an output means such as a display device or a printing device, it is possible to accurately inform the user of the contents.

In addition, many excellent effects such as inconvenience such as loss of data due to restoration can be completely prevented by the data saving process.

[Brief description of the drawings]

FIG. 1 is a functional block diagram showing an embodiment of the main part of the data processing apparatus of the present invention. FIG. 2 is an embodiment of the main part of the system of the data processing apparatus of the present invention. FIG. 3 is a flow chart showing a flow of processing when the automatic self-diagnosis program is started in the data processing apparatus of the present invention shown in FIG. 1, and FIG. 4 is a flow chart shown in FIG. In the data processing apparatus of the present invention, a functional block diagram showing a detailed configuration example of the system check activation control unit 23 and its peripheral circuits. FIG. 5 shows an example of error information recorded in an error information save area 42. FIG. 6 is a flow chart showing a flow of processing when a file system is restored in the data processing apparatus of the present invention. FIG. 7 is an example of the contents of a system configuration information file. FIG. 8 is a diagram showing an example of a display screen when registration of a system configuration information file is executed. FIG. 9 is a diagram showing a physical block consistency control unit in the data processing apparatus of the present invention shown in FIG. FIG. 32 is a diagram showing an example of the contents of restoration performed by a file management table consistency control unit 33 and a directory structure consistency control unit 34; In the drawings, 1 is a CRT or other display device, 2 is an external storage device, 3 is a printer, 4 is an input / output control unit, 5 is a control unit, 6 is a file system information storage area, 7 is an automatic self-diagnosis system control unit, 11 is a central processing control unit, 12 is a timer control unit, 13 is a process management control unit, 21 is an execution environment maintenance control unit, 22 is a start time check control unit, 23 is a system check start control unit, and 24 is a user process control unit. / No detection unit, 25 is a check result control unit, 26 is a file system modification control unit, 27 is a normal environment transition control unit, 28 is a physical block consistency check unit, 29 is a file management table consistency check unit, and 30 is a directory. Structural integrity check, 31
Is a system modification execution / possible / impossible control unit, 32 is a physical block consistency control unit, 33 is a file management table consistency control unit, 34 is a directory structure consistency control unit, 35 is a file system data save control unit, 41 is File system internal structure storage area, 42 is an error information save area, 43 is a system configuration information save area.

Claims (2)

(57) [Claims] 1. A data processing device having at least a main storage device and an external storage device, and having a self-diagnosis function of checking a file system by a file system check program existing in the external storage device. Program operating state determining means for determining whether or not the user program is operating in the data processing device; and time setting means for setting a time at which a check program of the file system is operated. At the time set by the above, and when it is determined that the user program is not in operation in the data processing apparatus, the check of the file system is executed by operating the check program of the file system. A data processing device characterized by the above-mentioned. 2. A data processing apparatus having at least a main storage device and an external storage device, and having a self-diagnosis function for checking a file system by a file system check program existing in the external storage device. A check result output means for outputting a check result of the file system to an output device; a check result / data storage means for storing the check result of the file system and data before the check in the external storage device; A repair execution permission setting means for setting the repair execution permission / prohibition setting means, when the repair execution permission / prohibition setting means is set to permit the execution of the repair, outputs a check result to the check result output means and outputs the check result to the external storage device. Stores file system check results and pre-check data. And a data processing device for executing a repair of a file system.