JPH1097452A - Computer system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily restore a file to the state before maintenance operation even in case of a failure in maintenance of a program file. SOLUTION: When a maintenance mode is entered through a maintenance mode transition means 105, respective files on a secondary storage device 103 becomes unwritable, so if a file is written into a new-version program file 102, a maintenance operation judging means 108 detects a write error. Then the old-version program file 112 is saved in an old-version file storage area 1032 and then the log of the operation is recorded in a maintenance operation log storage area 1033, so that the old-version program file 12 is updated into the new-version program file 102. For restoration, a maintenance operation restoring means 111 restores the old-version program file from the old-version file storage area 1032 according to the maintenance operation log storage area 1033.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a computer system for performing maintenance work such as new creation and update of a program file on a storage device for storing software program files, and particularly, a problem occurs when the maintenance work is performed. The present invention relates to a computer system that can automatically recover to the state before the maintenance work even when the maintenance is performed.

[0002]

2. Description of the Related Art Generally, in a computer system, a program file such as application software stored in a storage device is upgraded,
Rewriting of program files with bugs and other defects,
Further, in order to install a new program file in the storage device, maintenance work of the program file such as updating or newly creating the program file is performed.

[0003] In this case, in preparation for a maintenance work failure or the like, conventionally, a maintenance practitioner grasps which files are changed before performing the maintenance work, and makes a backup of those program files. In this way, when a problem occurs in the maintenance work, the program file is written back from the backup, thereby canceling the maintenance work and restoring the state before the maintenance.

When a plurality of maintenance works are performed, the same file may be changed in the plurality of maintenance works. Therefore, when only a specific maintenance work is restored, the restoration of the other file causes another maintenance work to be performed. May not be established, and a problem may occur in a program file performed in other maintenance work. That is, for example, when a certain specific program file is newly created in one maintenance work, and the specific program file is referred to or updated in another maintenance work, only the one maintenance work is restored. In this case, since the specific program file disappears, the maintenance work of the other program file referencing or updating the specific program file is not established. For this reason, conventionally, when performing multiple maintenance operations, the maintenance executor must understand the interdependency between the multiple maintenance operations at the time of the maintenance operation, and perform recovery in advance before performing the recovery. The restoration of the maintenance work that needs to be performed is performed at the same time to return to the state before the maintenance work.

[0005]

However, in the conventional computer system, when the maintenance work is performed in consideration of the failure of the maintenance work as described above, it is necessary for the maintenance executor to make a backup before the maintenance work. A program file must be determined and backed up in a predetermined procedure, which takes a great deal of time and effort, and requires a skilled person with sufficient knowledge of program file backup work. Otherwise, maintenance could not be performed.

Further, when a plurality of maintenance work is performed, in order to recover a particular maintenance work, a maintenance work for recovery, such as which maintenance work needs to be recovered before the recovery is performed. The maintenance executor must also understand the interdependency between the operations, and there is a problem that the maintenance recovery operation is complicated.

Therefore, the present invention has been made to solve such a problem, and eliminates the need for a maintenance executor to perform a backup operation of a program file to be subjected to a maintenance operation at the time of a maintenance operation. Provide a computer system that quickly restores the computer system to the state before the maintenance work was executed, even if maintenance work failed, and enables the system to be quickly and easily recovered by non-skilled maintenance workers. The purpose is to do.

Further, in the present invention, the interdependency for restoration between a plurality of maintenance works is automatically determined from the log of the maintenance work, and the maintenance work which needs to be restored is collectively restored. Accordingly, an object of the present invention is to provide a computer system that can quickly and easily recover the present system even if a skilled maintenance executor does not perform a plurality of maintenance operations.

[0009]

According to the present invention, there is provided a computer system for maintaining a program file of a software in a storage device for storing the program file of the software. A maintenance work means for performing the maintenance work, a maintenance work log storage means for storing the maintenance work log by the maintenance work means, and the storage based on the maintenance work log stored in the maintenance work log storage means. Maintenance work restoring means for restoring the apparatus to a state before the maintenance work.

[0010] In the next invention, the maintenance work means includes a maintenance mode shifting means for setting the secondary storage device to a write-disabled state, and the secondary storage device set to a write-disabled state by the maintenance mode shifting means. A new-version file writing means for outputting a writing error signal when accessing to write the new-version program file to the second-version program file; detecting a writing error signal from the new-version file writing means; Maintenance work determining means for determining whether access to the device is a new creation of a new version program file or updating to a new version program file, and determining that the update to the new version program file is performed by the maintenance work determining means. If so, Old-version file storage means for storing the old-version program file stored in the secondary storage device, wherein the new-version file writing means further includes: If it is determined that the file is a new version of a new version program file,
The new version program file is written to the secondary storage device.

In the next invention, the maintenance work log storage means stores, as a log of the maintenance work by the maintenance work means, a work object for each work type of new creation of a new edition program file and update to the new edition program file. File name and the file name of the old version program file to be worked on only in the case of update, and the maintenance work recovery means
The maintenance work log for each work type saved by the maintenance work log storage means is sequentially read, and if it is determined that the work type of the read log is a new creation of a new version program file, the log is read from the secondary storage device. While deleting the new program file and deleting the log, if it is determined that the work type of the read log is an update to the new program file,
The old-version program file saved by the old-version file storage means is written back to the new-version program file in the secondary storage device, and the log is deleted.

[0012] In the next invention, the maintenance work log storage means further stores, when the maintenance work is performed a plurality of times, logs of the maintenance work of the plurality of times in a chronological order, and performs the maintenance work in a plurality of times. In the case where a specific maintenance work that has been performed several times and jumps over the recent maintenance work and is restored to a specific maintenance work older than that is performed, the log of the specific maintenance work stored by the maintenance work log storage unit is read and the work is performed. When the type is new creation of a new version program file and update to a new version program file, the file is stored as a recovery target file, and a log of maintenance work newer than the specific maintenance work is sequentially read and read. Log target file Means for determining whether or not the maintenance work file matches the above-mentioned recovery handling file, and if they match, the maintenance work recovery means for restoring the maintenance work having the log together with the specific maintenance work to the state before the maintenance work. Is further provided.

Further, in the following invention, the maintenance work log storage means further stores a log storage time for each log when storing the maintenance work log, and stores the log stored by the maintenance work log storage means. Are read in order from the oldest one.If the log save time of the read log is more than a predetermined log save time from the current time, the log is deleted and only when the work type of the log is update A log maintenance unit for deleting an old-version program file corresponding to the log stored by the old-version file storage unit is provided.

Further, in the next invention, one computer device and one log storage device are connected via a network to construct a computer system, and the computer device includes a maintenance mode transition unit, a new version file writing unit, Maintenance work means comprising means, maintenance work determination means and old version file storage means,
While having a maintenance work log storage unit and a maintenance work recovery unit, the log storage device is stored by the maintenance work log storage area stored by the maintenance work log storage unit and the old version file storage unit. A storage area for an old-version program file, wherein the maintenance work log storage unit and the old-version file storage unit of the computer device transmit the maintenance work log and the old-version program file to the log storage device via the network. Then, it is stored in the maintenance work log storage area and the old version file storage area of the log storage device.

In the following invention, a computer system is constructed by connecting a plurality of computer devices and one log storage device via a network, and each of the plurality of computer devices shifts to a maintenance mode. Means, a maintenance work means comprising maintenance means, a maintenance work log storage means, a maintenance work recovery means, and a network communication means for communicating via the network. The log storage device stores the maintenance work log storage area stored by the maintenance work log storage means for each of the plurality of computer devices, and the old file storage means of the plurality of computer devices. Check whether the same old version program file is saved in the old version file storage area and the same old version file storage area in the above old version file storage area. There is provided an old-version file storage area compressing means for leaving only one program file and deleting the other same old-version program file.

In the next invention, a computer system is constructed by connecting one maintenance-dedicated computer device and one maintenance-targeted computer device having a storage device for storing software program files via a network. The maintenance-dedicated computer device includes a maintenance work unit;
It has a maintenance work log storage means and a maintenance work recovery means, and the maintenance work means performs maintenance work on the storage device of the maintenance target computer device via the network.

In the following invention, a computer system is constructed by connecting one maintenance-dedicated computer device and a plurality of maintenance-targeted computer devices having a storage device for storing software program files via a network. The maintenance-dedicated computer device includes a maintenance work unit, a maintenance work log storage unit, a maintenance work recovery unit, and a maintenance work control unit that instructs a content of the maintenance work for each of the plurality of maintenance target computer devices. The maintenance work means, based on an instruction of the maintenance work control means, performs maintenance on the storage devices of the plurality of maintenance-target computer apparatuses via the network. It is intended to carry out the work.

Further, in the following invention, the maintenance work instructing means instructs the maintenance work means to perform the same maintenance work on each of the plurality of maintenance-target computer apparatuses in one maintenance work.

Further, in the following invention, the maintenance work instructing means instructs the maintenance work means to perform different maintenance work on each of the plurality of maintenance-target computer apparatuses in one maintenance work.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments 1 to 7 of a computer system according to the present invention will be described below. Embodiment 1 FIG. 1 shows the configuration of a computer system according to Embodiment 1 of the present invention. In FIG. 1, a computer system 101 according to the first embodiment is constructed in one computer device, and includes a secondary storage device 1
03, a maintenance mode shift unit 105, a file access mode storage area 106, a new version file writing unit 107, a maintenance work determination unit 108, and an old version file storage unit 109, and a maintenance work log storage unit 11
0 and the maintenance work recovery means 111. In the figure, reference numeral 102 denotes a new version program file newly written to the secondary storage device by the maintenance work.

The secondary storage device 103 is a storage device such as a magnetic disk or an optical disk. When the maintenance work is an update, the old program file 112 to be subjected to the maintenance work and a program file storing other program files are stored. Storage area 1031 and old-version program file 112 for maintenance recovery
And a maintenance work log storage area 1033 in which a log entry for each maintenance work is recorded.

The function of each of the above-mentioned means will be described in detail later. However, in brief, the maintenance mode shifting means 105 shifts the computer system 101 between the normal operation mode and the maintenance mode. , The new version file writing means 107 writes the new version program file 102 into the program file storage area 1031 of the secondary storage device 103, and the maintenance work judging means 108 sets the write disabled state by the respective maintenance work in the maintenance mode. New version program file 10 on next storage device 103
The old version file storage unit 109 detects the start of the maintenance work by detecting a write error when the write operation of the file No. 2 is performed.
The old-version program file 112 notified by the program file storage area 1031 on the secondary storage device 103
Is copied to the old version file storage area 1032.

Further, the maintenance work log storage means 110 stores the maintenance work log in the secondary storage device 1.
03 in the maintenance work log storage area 1033 on the maintenance work recovery unit 111.
Is for returning the secondary storage device 103 to the state before the maintenance work based on the maintenance work log stored in the old version file storage area 1032 and the maintenance work log storage area 1033. The functions of these means can be provided by hardware as described above.
Of the operating system (OS). File access mode storage area 1
An area 06 stores an access mode of each program file stored in the program file storage area 1031 on the secondary storage device 103, and may be provided on the secondary storage apparatus 1031.

FIG. 2 shows an example of each maintenance work log during the maintenance work recorded in the maintenance work log storage area 1033. In FIG. 2, 201,
Reference numerals 202, 203, and 204 denote each entry of the maintenance work log. For each log entry, the entry date and time, the work target file name, the work type, and the file name in the old version file storage area 1032 (however,
This file name is only when the work type is "update". ) Is stored. However, since 201 and 204 are the first and last maintenance work, respectively, the work target file name is not stored, and only the work date and time, and the work types of “maintenance start” and “maintenance end” are stored.

Next, the operation of the computer system according to the first embodiment configured as described above will be described.

The operation of the computer system according to the first embodiment is roughly divided into the following two processes. (1) Recording a maintenance work log during maintenance work and storing the old version program file 112 to be maintained. (2) Maintenance work recovery processing for returning the old program file 112 based on the maintenance work log to the state before the maintenance work. Therefore, the operation of the computer system will be described separately for the above two processes.

First, the method of (1) recording the maintenance work log during the maintenance work and storing the old version program file 112 for maintenance described above with reference to FIGS. 1 and 2 and FIGS. 3 to 5 showing the operation thereof.
This will be described with reference to FIG.

FIG. 3 is a flow chart showing the operation of the maintenance work means 104 in the maintenance mode on the computer system 101.

FIG. 4 is a flowchart showing the operation of the maintenance mode shifting means 105 when shifting the computer system 101 from the normal operation mode to the maintenance mode, and shows the processing of step 302 in FIG. 3 in detail.

FIG. 5 is a flowchart showing the operation of the maintenance mode shifting means 105 when shifting the computer system 101 from the maintenance mode to the normal operation mode, and shows the processing of step 311 in FIG. 3 in detail.

First, the maintenance executor notifies the maintenance mode shifting means 105 that the maintenance work will be performed on the computer system 101. Then, in the computer system 101, the process shown in FIG.
In step 302, the maintenance mode shifting means 1
05 shifts the computer system 101 to the maintenance mode.

The details are as shown in FIG. 4. The maintenance mode shift means 105 starts the maintenance processing in step 401, and first, in step 40.
2, the log entry 201 (see FIG. 2) indicating the start of maintenance is written in the maintenance work log storage area 1033 of the secondary storage device 103. Next, the maintenance mode shifting means 105 executes the next step 403
The current access mode of all the program files stored in the program file storage area 1031 on the secondary storage device 103, that is, the state such as “writable” or “writable” is stored in the file access mode storage area 1
06, and in the next step 404, the program file storage area 1031 on the secondary storage device 103
The access mode of each of the program files stored in the program is set to a “write-disabled” state, and the next step 4
05 ends this processing. As a result, the computer system 101 has shifted from the normal operation mode to the maintenance mode.

Next, returning to FIG. 3, the processing shifts from step 302 to step 303, where it is first determined whether or not maintenance is to be terminated. If the maintenance is not to be terminated (step 3
03 “NO”), maintenance work determination means 108
First, in step 304, it is determined whether or not maintenance work such as writing of the new version program file 102 has been started by the maintenance executor. More specifically, in the maintenance mode, the new program file 102 is introduced and the program file storage area 131 on the secondary storage device 103 is written to the program file storage area 1031 on the secondary storage device 103.
031, the access mode of the program file storage area 1031 of the secondary storage device 103 is set to a file write-disabled state by the processing of step 404 in FIG. 4, and write errors such as access errors and access traps are made. Since a state occurs, the new program file 1 is detected by detecting the write error.
The start of maintenance work such as writing of 02 is recognized.

Here, the maintenance work judging means 10
When it is determined that the maintenance work such as writing of the new version program file 102 has started (step 304 “YES”), the next step 305 determines whether the program file is “new creation” or “update”. It is determined whether or not the program file is “changed”. If the program file is “changed”, the maintenance work determining means 108 in the next step 306 stores the file name (/ def Notify).

Then, in the next step 307, the old-version file storage means 109 stores the old-version program file 112 and the old-version program file 1 from the program file storage area 1031 and the file access mode storage area 106 of the secondary storage device 103, respectively.
Twelve access modes are read and stored in the old version file storage area 1032, for example, with a file name of “1”.

In the case of this "update", the maintenance work log storage means 1 is executed in the next step 308.
Reference numeral 10 denotes, for example, a work target file name “/ def”, a work type “update”, and a file name “1” in the old version file storage area in the maintenance work log storage area 1033.
Log entry 202 (see FIG. 2). Thereafter, the new version file writing means 107 receives an instruction to end the storage from the old version file storage means 109, and the new version file writing means 107 sets the access mode of the old version program file 112 to writable in step 309. The new program file 102 is stored in the old program file 112 by the step 310 of FIG.
To update the program file.

On the other hand, when the maintenance work judging means 108 recognizes that the program file is "new creation" in step 305 (step 305: "Y").
ES "), skip steps 306 and 307, and proceed to step 308 to save the maintenance work log storage unit 1
10 is stored in the maintenance work log storage area 1033. For example, a log entry 203 of a file to be newly created with a work target file name “/ abc” and a work type “new creation” (FIG. 2)
Write). Note that, in the case of this new file creation, since the existing program file in the program file storage area 1031 is not rewritten, the file name in the old version file storage area is not set in this log entry 202. In this case, in the next step 309, the program file storage area 10
The access mode of an arbitrary area on 31 is set to be writable, and in the next step 310, the new version program file 102 is written to the arbitrary area on the program file storage area 1031.

The above processing is repeated every time the maintenance work detecting means 108 detects the writing of the new version program file 102 to the secondary storage device 103 in step 304 until the maintenance work is completed.

When the maintenance work executor notifies the maintenance mode transition means 105 of the end of the maintenance work, the maintenance mode transition means 1
In step 05, it is determined that the maintenance work has been completed ("YES" in step 303), and the computer system 101 is shifted to the normal operation mode in step 311.

More specifically, as shown in FIG. 5, the maintenance mode shift means 105 starts this processing in step 501, and the program files stored in the file access mode storage area 106 in the next step 502. , The access mode of each program file on the secondary storage device 103 is restored. Then, the next step 503
Then, the log entry 204 (see FIG. 2) of “maintenance work completed” is written in the maintenance work log storage area 1033. Now, this computer system 10
1 means that the operation mode has shifted from the maintenance mode to the normal operation mode in step 311.

By performing the above processing, the log entry of each maintenance work during the maintenance work as shown in FIG.
If the maintenance work is update while the old version program file 112 is stored, the old version program file 112 is stored in the old version file storage area 1032.

Next, as described above, the maintenance work of the above (2) is performed using the log entry of the maintenance work saving log area 1033 and the maintenance target old version program file 112 saved in the old version file saving area 1032 as described above. Figure 1 and 2 show the recovery process
This will be described with reference to FIG.

FIG. 6 is a flow chart showing the operation of the maintenance work restoring means 111 when the maintenance work is restored.

First, the maintenance work recovery means 111
Starts this recovery processing in step 601,
First, in step 602, the log entries in the maintenance work log storage area 1033 are sorted one by one from the newest date and time to the oldest date and time, that is, in FIG. 2, in the order of the log entries 204, 203, 202 and 201. For each work type of the read log entry, whether the work type is the start of maintenance (step 603), whether a new program file is created (step 604), or whether the program file is updated (step 605) ) Is determined, and the program file is restored in steps 606 to 611 that follow.

Specifically, for example, when the work type of the log entry is “new creation” of the program file like the log entry 203 (step 604: “YE”)
S ″), the maintenance work recovery unit 111 uses the program file stored in the program file storage area 1031 on the secondary storage device 103 based on the work target file name recorded in the log entry 203 in step 609 (step S609). In the case of the log entry 203, it is / abc), and the log entry 20 is deleted from the maintenance work log storage area 108 in the next step 610.
Delete 3.

On the other hand, when the work type of the log entry is “update” of the program file as in the log entry 202 (“YES” in step 605), step 606 is performed.
The old version file storage area 10 of the log entry 202
The old program file 112 (here, / def) having the file name (here, “1”) stored in the file 32 and its access mode are read from the old file storage area 1032, and the program file storage area 10 is read.
Then, the old-version program file 112 stored in the old-version file storage area 1032 is deleted in the next step 607, and the maintenance work log storage area 10 is deleted in the next step 608.
33, the log entry 202 is deleted.

By repeating the above processing and reading the log entry 201 whose work type is “start of maintenance work” from the maintenance work log storage area 1033 (“YES” in step 603), the maintenance work recovery unit 111 Moves to step 611, and ends the recovery work of the maintenance work.

Therefore, according to the computer system of the first embodiment, when the maintenance work of the program file stored in the secondary storage device 103 is performed, the log of the maintenance work is stored and the maintenance work is updated. Old version program file 1 to be replaced
Since the backup of the maintenance work 12 is automatically performed, the recovery of the maintenance work can be automatically performed based on the log and the backup of the old-version program file 112 when restoring the state before the maintenance work. In the first embodiment, the old version file storage area 1032 and the maintenance work log storage area 103
In the present invention, the old version file storage area 1032 and the maintenance work log storage area 10 are not limited to such a case.
Of course, 33 may be provided in another secondary storage device or another memory.

Second Embodiment Next, a computer system according to a second embodiment in which the computer system according to the first embodiment is improved will be described.

FIG. 7 shows the configuration of a computer system according to the second embodiment. In FIG. 7, the same components as those of the first embodiment shown in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted. As shown in FIG. 7, a computer device 701 according to the second embodiment is different from the first embodiment in that a maintenance dependency recognizing unit 70 is newly added.
2 to which the maintenance mode shift means 1 is added.
05 and the maintenance work judging means 108 are extended. Here, the maintenance dependency recognizing unit 702 performs recovery before recovering a specific maintenance work among a plurality of maintenance works based on the log entry of the maintenance work recorded in the maintenance work log storage area 1033. The maintenance work that needs to be performed is recognized, and the processing will be described later in detail.

FIG. 8 shows an example of a maintenance work log recorded in the maintenance work log storage area 1033 in the second embodiment. In FIG.
Reference numeral 805 denotes a log entry of each work of a certain maintenance work 1, 806 to 809 denote log entries of each work by another maintenance work 2, and 810 to 813 denote log entries of each work by another maintenance work 3. The maintenance work log of the second embodiment refers to the fact that there are a plurality of maintenance works such as maintenance work 1 to 3, and the work type is "reference", that is, the other program file indicated by the work target file name is referred to as it is. Except for the fact that there is work, it is substantially the same as the maintenance work log of the first embodiment shown in FIG.

Next, the operation of the computer device of the second embodiment configured as described above will be described with reference to the drawings. Since the second embodiment is an improvement of the first embodiment, similar to the first embodiment, the operation is performed by recording the maintenance work log during the maintenance work described in the above (1) or by using the old program for maintenance. The storage operation of the file 712 and the restoration operation of the maintenance work based on the maintenance work log and the stored old version program file 712 for maintenance described in the above (2) can be divided into two operations. Therefore, also in the second embodiment, as in the first embodiment, the description will be divided into two parts and the description will be focused on the difference from the first embodiment.

First, the recording of the log of the maintenance work during the maintenance work and the process of storing the old program file 112 for maintenance will be described with reference to the drawings.

FIG. 9 is a flow chart showing the operation of the maintenance work judging means 108 and the old version file storage means 109 in the maintenance work mode in this embodiment.

First, also in the second embodiment, the maintenance executor will be
The maintenance mode transition unit 105 is notified that the maintenance work is to be performed on the first maintenance mode. Then, as in the first embodiment, this processing is started in step 1002, and first, in step 1002, the maintenance mode shift unit 105 shifts the computer system 701 to the maintenance mode.

More specifically, the process shown in FIG. 4 is performed in the same manner as in the first embodiment, and the log entries 801, 806, and 810 for starting the maintenance work are written, and then each file on the secondary storage device 103 is written. For the current access mode in the file access mode storage area 106,
Further, the access mode of each program file is set to read / write. Thereby, also in the second embodiment, the computer system 701
02 shifts from the normal operation mode to the maintenance mode.

Next, as in the first embodiment, the maintenance executor starts introduction of the new version program file 102 and writes the file in the secondary storage device 103 by introducing the new version program file 102 in the maintenance mode. Occurs, the maintenance work determining means determines that the program file is to be written.
08 is recognized (“YES” in step 1004), and processing is performed in steps 1005 to 1010 in the same manner as in the first embodiment.

In the second embodiment, in this step 1004, the maintenance work judging means 1
08 also determines whether reading of a program file for referring to another program file of the program file storage area 1031 on the secondary storage device 103 has occurred, and if it is determined that this program file has been read, (“NO” in step 1004), the maintenance work judging means 10
8 recognizes the program file as a reference, and in the next step 1012, the maintenance work log storage area 10
8, a log entry 804 whose work type is a file “reference”
And the like, and a program file to be referred to in the next step 1013 (in the case of the log entry 804, a program file with a work target file name “/ ghi”)
Is set to be readable, and the program file is actually read.

If the maintenance work has been completed (“YES” in step 1003), the process proceeds to step 10
14, that is, in detail, as shown in FIG. 5, the access mode of the program file is restored in the same manner as in the first embodiment, and the end of the maintenance work is stored as shown in the log entry 805 and the like. Is completed, and the computer system 701 is shifted from the maintenance mode to the normal operation mode.

By the above operation, the recording of the work log during one maintenance work and the old file storage area 1
032, the old program file 712 for maintenance can be saved. Here, the maintenance work similar to the above is performed three times for the maintenances 1 to 3, so that the maintenance work log of the three maintenance works can be configured as shown in FIG.

Next, FIGS. 7, 8, and 10 show a method of restoring the maintenance work performed by using the saved log entries in the maintenance work storage log area 1033 and the files stored in the old version file storage area 1032. FIG. It will be described with reference to FIG. However, when the maintenance work is restored when there is only one maintenance work log in the maintenance work storage area 1033, the method of the first embodiment can be used as it is.
Here, a description will be given of a recovery method in a case where, for example, the maintenance work 1 is to be recovered when a plurality of maintenance works are performed as shown in FIG.

FIG. 10 is a flow chart showing the operation of the maintenance dependency recognizing means 702 for determining the maintenance work to be restored based on the log recorded in the maintenance work log storage area 1033.

The maintenance dependency recognizing means 702
When the process is started in step 1101, first, in step 1102, each log entry in the maintenance work log storage area is skipped from the beginning, that is, from the oldest one, until the log entry of the start of the maintenance work to be restored appears. Then, the next step 1103
Reads one log entry, and proceeds to the next step 110
The work type is "update" of the program file by 4
Alternatively, it is determined whether or not the work type is “new creation”, and if the work type is “update” or “new creation” of the program file (step 1104: “YE
S ″), the work target file name of the log entry is stored as a recovery target file in step 1106, and
This processing is repeated until the work type of the log entry becomes the end of the maintenance work. This allows
All the file names updated or created in the maintenance work targeted for recovery are stored as recovery target files.

On the other hand, the work type is not “change” or “new creation” of the program file (step 1).
104 "NO") and "maintenance 1 end" indicating the end of the maintenance work 1 (step 1105 "YES"), the next log entry is read in step 11033, and the log entry already exists. It is determined whether or not there is no log entry (step 1108).
S "), while this processing is terminated (step 111).
2) If log entries still remain (step 11)
08 “NO”), in the next step 1109, it is determined whether or not the work file name of the log entry matches any of the recovery file names stored in step 1106. If the work target file name of the log entry matches any of the recovery target file names stored in step 1106 (step 1109: “YE
S "), add this maintenance work to the recovery target maintenance work list in the next step 1110,
Subsequently, “maintenance end” is performed in step 1111.
Skip until the log entry of.

Then, returning to step 1107, the next log entry in the maintenance work log storage area 1033 is read, and when there are no more log entries (step 1108 "YES"), recovery to be added to the recovery target maintenance work list is performed. Since there is no necessary maintenance, it is possible to detect a specific maintenance work to be restored and a maintenance work which needs to perform a recovery work before it is restored.

For example, in FIG. 8, when the maintenance work 1 is the maintenance work to be restored, the files to be restored are “/ abc” and “/ def”. After that, by referring to the maintenance work log storage area 1033 for the logs of the maintenance work 2 and 3 newer than the maintenance work 1, the maintenance work 3
It can be seen that the work entry file “/ abc” of the maintenance work 1 is referred to by the log entry 811 of FIG. Therefore, maintenance work 3 is added to the list of maintenance work to be restored, and this time maintenance work 1 is added.
It can be seen that the maintenance work 3 should be restored. If the maintenance work to be restored can be specified in this way, the actual recovery work is performed by performing the processing shown in FIG. 6 on each of the maintenance works 1 and 3 in the same manner as in the first embodiment.
Recovery work can be performed. In the case where a program file updated in another maintenance operation is updated again, a plurality of maintenance operations are similarly restored at the same time.

Therefore, according to the second embodiment, when a plurality of maintenance works are performed, and a program file of another maintenance work is referred to among the plurality of maintenance works, the referenced program Even when restoring a specific maintenance work having a file, when restoring the specific maintenance work, it is necessary to perform the restoration at the same time, that is, determine other maintenance work referring to the program file under the maintenance work. In addition, the maintenance work is also restored at the same time, so that the maintenance executor does not need to grasp the interdependency between the multiple maintenance work by referring to the program file, so that the maintenance work with interdependency can be performed. Simultaneous return Can be, it will be able to recover easily maintenance work even in the case of a plurality of times the maintenance work.

Third Embodiment Next, a third embodiment of the computer system according to the present invention will be described. The computer system according to the third embodiment is an improvement of the computer system according to the first embodiment, and includes a maintenance work log storage area and an old version file storage area on a secondary storage device based on a preset log storage time. It has been improved to suppress the expansion of.

FIG. 11 shows a characteristic configuration of a computer device 1201 according to the third embodiment of the present invention. The computer device 1201 of the third embodiment is different from the configuration of the first embodiment in that the maintenance work log storage area 1
The maintenance work log storage area 12 on the secondary storage device 1203 based on the log storage time indicating how long each log entry stored in the storage 202 is stored.
032 and an old version file storage area 12033 are provided by a log maintenance unit 1204. Here, the log storage time can be arbitrarily set by a maintenance executor or the like.
Note that FIG. 11 does not show the configuration of the first embodiment such as maintenance work means.

Next, the operation of the third embodiment will be described. In the third embodiment, the maintenance work and the maintenance recovery work are the same as those in the first embodiment. Therefore, the third embodiment will be described with reference to FIG.
An operation for compressing the data by deleting the maintenance work log storage area and the old version file storage area, which is a characteristic operation of the embodiment, will be described.

FIG. 12 shows the log maintenance means 120.
4 is a maintenance work log storage area 12032 and an old version file storage area 12033 on the secondary storage device 1203.
The operation when compressing is shown. To describe this operation, when the log maintenance means 1204 starts the processing in step 1301, first, in step 1302, log entries in the maintenance work log storage area are read one by one from the newest date and time to the oldest one.
Subsequently, it is determined whether or not the work type read in step 1303 is “maintenance end”.

Only when the work type of the log entry is "maintenance end" (step 1303)
“YES”), the flow shifts to the next step 1304, and it is determined whether or not the date and time when the log entry is recorded is equal to or less than the current time minus the log storage time. here,
If it is determined that the date and time when the log entry was recorded is equal to or less than the current time minus the log storage time (“YES” in step 1304), all log entries entered before this log entry are deleted. Since the log storage time set by the maintenance executor has been exceeded, the log entries before that are deleted one by one in steps 1305 to 1311.

Specifically, the log maintenance means 12
In step 04, the log entry whose work type is "maintenance end" is deleted in step 1305, and the next log entry is read from the maintenance work log storage area 1202 in the next step 1306, and there is the next log entry. In the case (step 1307 "N
O)), in the next step 1308, it is determined whether or not the work type of the log entry is “update” of the program file.

Only when the work type of the log entry is “update” of the program file (“YES” in step 1308), the old version file storage area 1203
Since the old-version program file to be maintained is stored in 2, the old-version program file indicated by the log entry is deleted from the old-file storage area 12032 in step 1309. After that, the work type of the log entry is not “update” of the program file, but is “new creation” or “reference” (step 1308 “NO”). The log entry is deleted, and the process returns to step 1306 to repeat the same process as above. If it is determined in step 1307 that there is no next log entry (step 1307: “YE
S "), the above-mentioned compression processing is terminated (step 1311).

Therefore, according to the third embodiment, the log maintenance means 1204 determines the log entry for each log entry in the maintenance work log storage area 12032 based on the log storage time set in advance by the maintenance executor. When a log entry older than the storage time is deleted from the maintenance work log storage area 12033, and a series of log entries from a maintenance work start log entry to a maintenance work end log entry are deleted from the maintenance work unit, that is, when the work type is updated. Stores the old-version program file corresponding to the deleted log entry in the old-version file storage area 1
2032, the maintenance work log storage area 1 on the secondary storage device 1203 is deleted.
2033 and the old version file storage area 12032 can be suppressed from being enlarged.

Fourth Embodiment Next, a fourth embodiment of the computer system according to the present invention will be described. In the computer system according to the fourth embodiment, the first embodiment is used.
Unlike the cases (1) to (3), the present system is not provided in one computer device, but is provided in a distributed manner over a plurality of devices connected by a network. It is.

FIG. 13 shows a configuration of a computer system according to the fourth embodiment of the present invention. Since this computer system has the same functions as the computer system of the first embodiment, the same components as those of the first embodiment will be described with the same reference numerals. As shown in the figure, the computer system according to the fourth embodiment includes a computer device 1401 on which maintenance processing and the like are performed.
And a log storage device 1402 are connected via a network 1403.

The maintenance target device 1401 includes the secondary storage device 103 and the maintenance mode shifting unit 10.
5. File access mode storage area 106, new version file writing means 107, maintenance work determination means 1
08 and an old version file storage unit 109, a maintenance work log storage unit 110, and a maintenance work recovery unit 111.
And a network communication unit 1404 connected to the network 1403 to perform communication. The log storage device 1402 includes a network communication unit 1405 connected to the network 1403 for communication, an old version file storage area 1406, and a maintenance work log storage area 1407.

Therefore, according to the fourth embodiment, as in the first embodiment, the maintenance work log is recorded while the maintenance work is being performed, the maintenance target old program file 112 is stored, and the maintenance work log is stored. Of the maintenance work based on the stored old-version program file 112 and the stored maintenance-target old program file 112.
Then, the maintenance work log and the old version file for maintenance are stored in the network communication means 1404 and 140.
5, a maintenance work log storage area 1407 of the log storage device 1402 connected to the network 1403
And the old version file storage area 1406.

Therefore, according to the fourth embodiment, similarly to the first embodiment, the log of each work during the maintenance work and the backup of the old version program file 112 to be maintained are automatically performed. Therefore, the maintenance work can be automatically recovered from the data, and further, the first embodiment can be used.
Unlike the case of the maintenance work log storage area 10 in the secondary storage device 103 of the computer device 1401,
Since there is no need to provide the storage area 33 and the old version file storage area 1032, the capacity of the secondary storage device 103 can be saved.

Embodiment 5 Next, Embodiment 5 of the computer apparatus according to the present invention will be described. The computer system according to the fifth embodiment is an improvement of the computer system according to the fourth embodiment.
In addition to providing multiple maintained devices in
The log storage device has a function of compressing an old version program file.

FIG. 14 shows a configuration of a characteristic portion of the computer system according to the fifth embodiment of the present invention. The computer system according to the fifth embodiment includes a plurality of computer apparatuses 1501, 1502, and 150 each of which is to be maintained (here, three computers are provided for convenience).
3 and each of the computer devices 1501, 1502, 1503
And a log storage device 1504 connected via a network 1510.

Each of the computer devices 1501, 1502, 1
503 is the computer device 140 of the fourth embodiment.
15, the configuration of the maintenance work means and the like that are the same as those of the first embodiment is omitted in FIG.
Only 1, 1512 and 1513 are shown.

The log storage device 1504 includes a network communication unit 1514 and each computer device 1504.
1, maintenance work log storage areas 1505, 1506, 1507 corresponding to 1, 1502, 1503,
It has one old file storage area 1508 and an old file storage area compression unit 1509 that compresses the old file storage area 1508 with reference to the maintenance work log storage areas 1505, 1506, and 1507.

Next, the operation of the fifth embodiment will be described. The operation of the fifth embodiment is basically the same as that of the fourth embodiment. Only the processing for compressing the storage area in the log storage areas 1505 to 1507 and the old version file storage area 1508 is different, so this compression processing will be described.

FIGS. 15A and 15B show the state before and after compression of the maintenance work log storage areas 1505 to 1507 and the old file storage area 1508 by the old version file old version file storage area compressing means 1509, respectively. In the fifth embodiment, each computer device 15
When the maintenance of the program file is performed in 01 to 1503, similarly to the fourth embodiment, the log of the maintenance work and the old file for maintenance are stored in the log storage device 1504. For example, the maintenance work log storage areas 1505 and 1506 are stored. In the old file storage area 1508, it is assumed that the log of the same program file and the old program file are recorded as shown in FIG.

That is, as shown in FIG. 15A, the maintenance work log storage areas 1505 and 1506 store
At different timings, the same program file whose work target file name is "/ abc" is assigned the work type "update" (if the work type is other than update, the old version file program is not stored. )) And the file name in the old version file storage area 1508 is “Aa
In the old version file storage area 1508, the same program file having a work target file name of “/ abc” is stored in the old version file storage area 1508, and the file name is “Aaaa” and “Bbb”. At this time, in the fifth embodiment, the old-version file storage unit stores the old-version program file in the old-version file storage area 1508 for each stored old-version program file. Make sure that the number of references is stored simultaneously.

Then, the old version file old version file storage area compression means 1509 first searches for a file having the same contents in the program files stored in the old version file storage area 1508 based on the work file name and the like. Here, the work target file name is “/ abc” and the file name in the old version file storage area 1508 is “Aa
Since the files “a” and “Bbb” have the same contents, when a file with the same contents is found, a file to be left in the old-version file storage area 1508 (here, “Bbb”) and a file to be deleted
(Here, “Aaaa”). Next, the name of the file to be deleted in the old version file storage area 1508
(In this case, “Aaaa”), the maintenance work log storage areas 1505 and 1506 are searched to detect the log entry storing the file to be deleted, and the file referred to by the log entry is stored in the old file storage area. Is changed from "Aaaa" to "Bbb". Then, the old file storage area 150
8, the old-version program file having the file name "Aaaa" is deleted, and the old-version program file having the file name "Bbb" is deleted from the maintenance work log storage area 150.
Since it is also the storage target of 5, the reference number is incremented by 1 to “2”. If this file is to be stored in the three maintenance work log storage areas,
The reference number is “3”.

Therefore, as shown in FIG. 15B, the memory size of the old version file storage area 1508 can be compressed by the size of the file “Aaaa”.

By operating as described above, the memory size of the old file storage area 1508 is reduced by the size of the overlapping program file, and the program file in the old file storage area 1508 is deleted when the maintenance is restored. Is performed, there is a risk that the log entry may be deleted even though the log entry of another maintenance work is still referred to. However, in the fifth embodiment, as shown in FIGS. 15A and 15B, a reference number is provided for the old program file stored in the old file storage area 1508, and a new log entry of the maintenance work is newly provided. When the number of references is increased, the number of references is increased, so when deleting the log entry, reduce the number of references and delete the file only when the number of references becomes 0. Then, the above problems will not occur.

Therefore, according to the fifth embodiment, the old-version file storage area compression means 15 is stored in the log storage device 1504.
09, the old version file storage area 1
The memory size 508 can be compressed by the size of the old-version program file that is redundantly stored.

Further, in the fifth embodiment, the reference number is provided for the old-version program file stored in the old-version file storage area 1508. Therefore, even if the old-version file storage area 1508 is compressed in this way, the reference number is not changed. Number one
By recovering based on log entries while decreasing the number of log entries, it is possible to prevent a log entry of another maintenance work from being deleted even though it is being referenced, and it is possible to reliably recover the maintenance work .

Embodiment 6 A computer system according to Embodiment 6 of the present invention is different from Embodiment 4 in that this system is not provided in one computer device.
In the same way as in the fourth embodiment, the functions are completely divided into a dedicated computer device for performing maintenance and a computer device for performing maintenance, which are distributed to a plurality of devices connected by a network and different from the fourth embodiment. This system is characterized in that the system is provided.

FIG. 16 shows a configuration of a computer system according to Embodiment 6 of the present invention. In the computer system according to the sixth embodiment, the first embodiment is used.
Those having the same function as the computer system of
The description is given with the same reference numerals as in the first embodiment.

The computer system according to the sixth embodiment comprises a maintenance-dedicated computer device 1701 for performing maintenance and a maintenance-targeted computer device 1702 to be maintained, which is connected via a network 1703.

The computer to be maintained 170
2 includes a secondary storage device 103 in which a program file maintained by the new version program file 102 is stored, and a network communication unit 1704 connected to a network 1703 to perform communication.

The maintenance-dedicated computer device 1701 includes a maintenance work unit 104, a maintenance work log storage unit 110, a maintenance work recovery unit 111, and an old version file storage area 1032.
A secondary storage device 1705 having a maintenance work log storage area 1033, and a network communication means 1706 connected to the network 1703 for communication, and each of the means constituting the maintenance work means 104 and the maintenance work recovery means 11 A configuration in which the old program file 112 on the secondary storage device 103 of the maintenance target computer device 1702 is directly accessed via the network communication means 1706 and the network 1703 to perform the same program file maintenance work as in the first embodiment and the like. Have been.

Next, the operation of the sixth embodiment will be described. However, the operation of the sixth embodiment differs from that of the first and second embodiments.
The only difference is that the maintenance work is performed via 703. That is, in the sixth embodiment, the maintenance work unit 104 of the maintenance-dedicated computer device 1701 uses the network communication units 1706, 17
04 through the maintenance computer 1702
If the maintenance work is to update a program file, a maintenance start instruction is output to the old version file storage unit 112 and the maintenance processing is started.

After that, the old-version file storage unit 109 stores the old-version program file 112 in the old-version file storage area 1 as in the first and second embodiments.
032, and the log of the work is stored in the maintenance work log storage area 1033 to perform the maintenance work of the program file. When the maintenance is restored, the maintenance work log storage area 1033 and the old version file storage area 1010 existing on the maintenance-dedicated computer device 1701 are also stored.
The recovery can be performed by using the method of the first embodiment or the second embodiment using the H.32.

Therefore, according to the sixth embodiment, similarly to the first embodiment and the like, the log of each operation during the maintenance operation and the backup of the old version program file 112 to be maintained are automatically performed. As a result, the maintenance work can be automatically recovered from the data, and the network 1
Maintenance dedicated computer device 17 via 703
01 can perform maintenance work on the secondary storage device 103 of the maintenance target computer device 1702, so that the maintenance target computer device 1702 does not need to be provided with a means for maintenance, and the maintenance target computer device 1702 is located at a remote location. Also, the maintenance executor can easily perform maintenance by using the maintenance-dedicated computer device 1701.

In the sixth embodiment, the first embodiment is used.
Although the configuration is based on the configuration of the first embodiment, the configuration may be based on the configuration of the second embodiment.
05, the file access mode storage area 106, and the maintenance work judging means 108, the new version file writing means 107 directly accesses the maintenance target computer 1702 via the network 1703 for the maintenance work, and performs the maintenance work. You may be comprised so that it may perform.

Seventh Embodiment Next, a computer system according to a seventh embodiment of the present invention will be described. The sixth embodiment is characterized in that the maintenance is performed on one computer device. However, in the seventh embodiment, the same or different each of the plurality of maintenance computer devices is controlled by the maintenance work control means. It is characterized in that maintenance work is performed.

FIG. 17 shows the configuration of a computer system according to the seventh embodiment. The same components as those in the first embodiment and the like are denoted by the same reference numerals, and description thereof is omitted. In the figure, reference numeral 1801 denotes a maintenance-dedicated computer device, and reference numerals 1802, 1803, and 1804 denote maintenance-target computer devices to be maintained, which are connected via a network 1805 to configure the present system. The maintenance target computer devices 1802, 1803, and 1804 are respectively connected to a network 1805 and communicate with each other by network communication means 1806, 1807, and 1808, and the secondary storage device 18 in which a program file is maintained.
09, 1810, 1811.

The maintenance-dedicated computer device 1801 includes a maintenance work unit 104, a maintenance work log storage unit 110, a maintenance work recovery unit 111, and an old version file storage area 1032.
And a secondary communication device 1812 having a maintenance work log storage area 1033 and a network communication unit 1813 connected to the network 1703 to perform communication
And each maintenance-targeted computer device 1802,1
New version program file 10 for 803, 1804
And maintenance work control means 1814 for instructing the same or different maintenance work for introducing the second maintenance work.

Next, the operation of the seventh embodiment will be described. The seventh embodiment is different from the sixth embodiment only in that the number of the computer to be maintained is plural. Therefore, the maintenance work control means 1814 of the maintenance-dedicated computer device 1801 operates in the maintenance mode. The maintenance computer units 1802-1804 are sequentially or arbitrarily selected from the transfer unit 105 and the file rewriting unit 1809, and a command is sent to them to perform the respective maintenance work.

Then, the maintenance work means 104
Directly accesses each of the maintenance-targeted computer devices 1802-1804 via the network 1805 based on the instruction of the maintenance work control unit 1814, and thereafter executes the old program file in the same manner as in the first and second embodiments. Is stored in the old-version file storage area in 1032, or the maintenance work is performed by rewriting the old-version program file with the new-version program file.

FIG. 18 shows a log of the maintenance work in the case where the same maintenance is performed in one maintenance work for each of the maintenance-target computer apparatuses 1802-1804 according to the seventh embodiment. Specifically, in the seventh embodiment, assuming that the maintenance program control unit 1817 sequentially updates the old-version program file having the file name “/ def”, the log entries 1906, 1907, 1
908 is executed. At this time, the old-version program files having the file name “/ def” stored in the respective maintenance-targeted computer devices 1802 to 1804 have the file names “1”, “2”, and “3” in the old-version file storage area 1812, respectively. And stored in the old version file storage area 1812. For this reason, the old version file storage area 181 as in the fourth embodiment and the like is used.
2 may be performed.

In each of the maintenance-targeted computer devices 1802-1804, the file name "/ abc"
Assuming that a new version program file is newly created, the log file is executed as shown in log entries 1909, 1910, and 1911. As a result, maintenance of the same contents can be performed for each of the connected maintenance-targeted computer devices 1802-1804. However, in this case, since it is not known which maintenance computer device 1802-1804 the log entry has been made, the target computer device name is added to the work target file name of the log entry and recorded.

Even when the maintenance work is performed and the maintenance is restored,
The maintenance work recovery unit 111 refers to the maintenance work log storage area 1033, and the maintenance computer device 180 recorded in the log entry.
By performing recovery on the computers 22-1804 via the network 1805 as in the sixth embodiment, it is possible to recover the maintenance on the plurality of maintenance-targeted computer devices 1802-1804.

FIG. 19 shows a case where separate maintenance such as introduction of a client-server type program file is performed in one maintenance work for each of the maintenance-targeted computer apparatuses 1802-1804 according to the seventh embodiment. Shows work log.
In FIG. 19, the maintenance target computer 1
Log entry 2 for maintenance work for 802
102 to 2104, and a log entry 2105,
A maintenance operation is performed as in 2106, and a log entry 2107,
Perform as in 2108. These are performed in a single maintenance operation of the maintenance computer device, so that a set of maintenance start / end log entries 21 is provided.
01 and 2109.

When the maintenance work is to be recovered, the log is referred to through the network 1805 as in the sixth embodiment. However, a set of maintenance work is performed by the log entry of maintenance start / end. , The maintenance work of the client-server type program file of each computer device can be collectively restored.

Therefore, according to the seventh embodiment, even when the maintenance-dedicated computer device 1801 and a plurality of maintenance-targeted computer devices 1802 to 1804 are connected via the network 1805, the case of the sixth embodiment can be applied. Similarly to the above, maintenance work and restoration of the maintenance work can be performed. In particular, in accordance with an instruction from the maintenance work control unit 1814, the same maintenance work can be performed on each of the maintenance-targeted computer devices 1802-1804 in one maintenance work, or a client can be transmitted to each computer device in one maintenance work.・
Separate maintenance tasks, such as the introduction of server-type program files, can also be performed.

It should be noted that also in the seventh embodiment, the sixth embodiment
Similarly to the above, the configuration is based on the configuration of the first embodiment. However, the configuration may be based on the configuration of the second embodiment. Alternatively, the maintenance mode shift unit 105, the file access mode storage area 106, the maintenance work determination Without providing the means 108, the new version file writing means 107 directly accesses the maintenance target computer apparatus 1702 via the network 1703 for the maintenance work based on the instruction of the maintenance work control means 1814, and performs the maintenance work. May be configured.

[0114]

As described above, according to the present invention, at the time of maintenance work of a storage device that stores software program files, a log of the maintenance work is stored, and the storage device is stored based on the log of the maintenance work. By restoring to the state before the maintenance work, the skilled maintenance practitioner does not need to back up the maintenance of the program file, and the maintenance work can be restored even if it is not a skilled maintenance practitioner. Become.

In the next invention, when a plurality of maintenance works are performed, and a program file of another maintenance work is referred to among the plurality of maintenance works, a specific file having the referenced program file is specified. Even when restoring the maintenance work of a particular maintenance work, it is necessary to perform the restoration at the same time when restoring the specific maintenance work, that is, determine the other maintenance work referring to the program file under the maintenance work, and Since the maintenance work is also restored at the same time, it is possible for the maintenance executor to simultaneously restore the multiple maintenance work in the interdependency without having to grasp the interdependency between the multiple maintenance work by referring to the program file. Maine Even if the nonce work was performed more than once it will be able to recover easily maintenance work.

In the next invention, based on the log storage time, a log entry older than the log storage time is replaced by a series of log entries from a maintenance work start log entry to a maintenance work end log entry. Is deleted from the maintenance work log storage area, and if the work type is updated, the old program file corresponding to the deleted log entry is deleted from the old file storage area. Even without maintaining the old version file storage area, the expansion can be suppressed.

Further, in the next invention, the present system is constructed by a computer device and a log storage device via a network, and the log storage device is provided with a maintenance work log storage area and an old version file storage area. In addition, it is not necessary to provide a maintenance work log storage area and an old version file storage area in the secondary storage device of the computer device, so that the capacity of the secondary storage device of the computer device can be saved.

In the following invention, the present system is constructed by a plurality of computer devices and a log storage device via a network, and a maintenance work log storage region and an old version file storage region are provided on the log storage device side. Instead, based on the logs in the maintenance work log storage area, the program checks the identity of the program files stored in the old file storage area and deletes the remaining files, leaving only one identical file. The memory size of the file storage area can be reduced by the size of the old version program file that is redundantly stored.

Further, in the following invention, the system is constructed by completely sharing the roles of a dedicated computer device for performing maintenance via a network and a computer device to be maintained for which maintenance is to be performed. Since the maintenance work of the secondary storage device of the maintenance target computer device is performed via the network, it is not necessary to provide a means for maintenance in the maintenance target computer device, and the maintenance target computer device is located at a remote location. Also, the maintenance executor can easily perform maintenance using the maintenance-dedicated computer device.

Further, in the following invention, the present system is constructed by a dedicated computer device for performing maintenance via a network and a plurality of maintenance-targeted computer devices for which maintenance is to be performed. Since the same maintenance work is performed for the maintenance computer equipment, or separate maintenance work such as introduction of a client-server type program file for each computer equipment is performed in one maintenance work.
One maintenance-dedicated computer can perform maintenance work for various purposes on a plurality of remotely-maintained computer devices via a network.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of Embodiment 1 of the present invention.

FIG. 2 is a diagram showing an example of a log recorded in a maintenance work log storage area in the first embodiment.

FIG. 3 is a flowchart showing operations of a maintenance work determination unit and an old version file storage unit in a maintenance mode according to the first embodiment.

FIG. 4 is a flowchart showing an operation of a maintenance mode shift unit for shifting the computer device according to the first embodiment from a normal operation mode to a maintenance mode.

FIG. 5 is a flowchart showing an operation of a maintenance mode shift unit for shifting the computer device from the maintenance mode to the normal operation mode in the first embodiment.

FIG. 6 is a flowchart showing an operation of a maintenance work restoring unit when the maintenance work is restored in the first embodiment.

FIG. 7 is an overall configuration diagram of Embodiment 2 of the present invention.

FIG. 8 is a diagram showing an example of a log recorded in a maintenance work log storage area in the second embodiment.

FIG. 9 is a flowchart showing operations of a maintenance work determination unit and an old version file storage unit in a maintenance mode according to the second embodiment.

FIG. 10 is a flowchart illustrating an operation of a maintenance work restoring unit when the maintenance work is restored in the second embodiment.

FIG. 11 is a diagram showing a characteristic portion in the third embodiment of the present invention.

FIG. 12 is a flowchart illustrating an operation of a log maintenance unit according to the third embodiment of the present invention.

FIG. 13 is an overall configuration diagram of Embodiment 4 of the present invention.

FIG. 14 is an overall configuration diagram of a fifth embodiment of the present invention.

FIG. 15 is a diagram showing an example before and after compression of a maintenance work log storage area and an old version file storage area by an old version file storage area compression unit according to the fifth embodiment of the present invention.

FIG. 16 is an overall configuration diagram according to a sixth embodiment of the present invention.

FIG. 17 is an overall configuration diagram according to a seventh embodiment of the present invention.

FIG. 18 is a diagram showing a log of a maintenance work when the same maintenance is performed in one maintenance work for each maintenance-target computer device according to the seventh embodiment.

FIG. 19 is a diagram showing a log of a maintenance work in a case where separate maintenance such as introduction of a client-server type program file is performed for each maintenance-executed computer apparatus by one maintenance work according to the seventh embodiment. It is.

[Explanation of symbols]

101 computer system, 102 new version program file, 103 secondary storage device, 1031 program file storage area, 1032 old version file storage area, 1033 maintenance work log storage area, 10
4 Maintenance work means, 105 Maintenance mode shift means, 106 File access mode storage area, 107 New version file writing means, 108 Maintenance work determination means, 109 Old version file storage means, 110 Maintenance work log storage means, 11
1 maintenance work recovery means, 112 old program file, 701 computer system, 702
Maintenance dependency relationship recognition means, 1201 computer system, 1203 secondary storage device, 12032
Old file storage area, 12033 Maintenance work log storage area, 1204 log maintenance means, 1401 computer device, 1402 log storage device, 1403 network, 1404, 1405 network communication means, 1406 Old file storage area, 1407 Maintenance work log storage area, 15
01, 1502, 1503 Computer device, 150
4 log storage device, 1505, 1506, 1507 maintenance work log storage area, 1508 old version file storage area, 1509 old version file storage area compression means, 1510 network, 1511, 1512, 1
513, 1514 Network communication means, 1701
Computer dedicated to maintenance, 1702 computer to be maintained, 1703 network, 1704, 1706 network communication means, 17
05 secondary storage device, 1801 computer dedicated to maintenance, 1802, 1803, 1804 computer to be maintained, 1805 network, 1806, 1807, 1808, 1813 network communication means, 1809, 1810, 1811, 18
12 Secondary storage device, 1814 Maintenance work control means.

Claims (11)

[Claims] 1. A computer system for performing maintenance work of a program file on a storage device storing a software program file, comprising: a maintenance work means for performing a maintenance work of a program file on the storage device; Maintenance work log storage means for storing the maintenance work log; and maintenance work recovery means for restoring the storage device to a state before the maintenance work based on the maintenance work log stored in the maintenance work log storage means. A computer system, comprising: 2. The maintenance work means comprises: maintenance mode shifting means for setting a secondary storage device to a write-disabled state; and a new-version program file to the secondary storage device set to a write-disabled state by the maintenance mode shifting means. New file writing means for outputting a write error signal when accessing to write a new file, and detecting a write error signal from the new file writing means to access the secondary storage device by the new file writing means. A maintenance work determining means for determining whether a new version of the program file is newly created or an update to the new version of the program file; and when the maintenance work determining means determines that the update is to the new version of the program file, , The secondary storage device Old-version file storage means for storing the stored old-version program file, wherein the new-version file writing means further stores the old-version program file after storing by the old-version file storage means and by the maintenance work determining means. 2. The computer system according to claim 1, wherein the new version program file is written to the secondary storage device when it is determined that the program file is newly created. 3. The maintenance work log storage means, as a log of the maintenance work by the maintenance work means, for each work type of new creation of a new edition program file and update to the new edition program file, Only in the case of update, save the file name of the old version program file to be worked on, and the maintenance work recovery means sequentially reads and reads the above-mentioned maintenance work log for each work type saved by the maintenance work log storage means. If it is determined that the work type of the log is a new creation of a new program file, the new program file is deleted from the secondary storage device and the log is deleted. Determined to be an update to the program file 3. The computer system according to claim 2, wherein, in the event that the old version program file saved by the old version file storage unit is written back to the new version program file in the secondary storage device, the log is deleted. . 4. The maintenance work log storage means further comprises: if the maintenance work has been performed a plurality of times,
When the logs of the maintenance work for the multiple times are stored in chronological order, and the maintenance work is performed a plurality of times, and the current maintenance work is skipped and restored to a specific maintenance work older than that, the above-mentioned maintenance work log is used. Reading the log of the specific maintenance work saved by the storage means, and when the work type is new creation of a new version program file and update to the new version program file, the file is stored as a recovery target file and , Sequentially read the logs of the maintenance work that is newer than the specific maintenance work, determine whether the work target file of the read log matches the above recovery handling file, and if so, read the log. Identify the maintenance work that has 4. The computer system according to claim 3, further comprising: maintenance dependency recognizing means for instructing the maintenance work restoring means to restore the state before the maintenance work together with the maintenance work. 5. The maintenance work log storage unit further stores a log storage time for each log when storing a maintenance work log, and stores the logs stored by the maintenance work log storage unit in order from the oldest one. If the log save time of the read log is longer than the predetermined log save time from the current time, the log is deleted, and only when the work type of the log is update, the old version file save means The computer system according to claim 3, further comprising a log maintenance unit that deletes the old program file corresponding to the stored log. 6. A computer system is constructed by connecting one computer device and one log storage device via a network, wherein the computer device includes a maintenance mode shift unit, a new version file writing unit, a maintenance work determination. Means and a maintenance work log storage means, comprising a maintenance work log storage means and a maintenance work log recovery means, while the log storage device stores the maintenance work log stored by the maintenance work log storage means. A storage area and a storage area for the old-version program file stored by the old-version file storage unit, wherein the maintenance work log storage unit and the old-version file storage unit of the computer device are connected via the network. The maintenance work log and the old-version program file are transmitted to the log storage device, and are stored in the maintenance work log storage area and the old-version file storage area of the log storage device. 3. The computer system according to claim 4 or claim 5. 7. A computer system is constructed by connecting a plurality of computer devices and one log storage device via a network, wherein the plurality of computer devices respectively include a maintenance mode transition unit and a new version file writing unit. Means, a maintenance work determining means comprising a maintenance work determining means and an old version file storing means, a maintenance work log storing means, a maintenance work restoring means, and a network communication means for performing communication via the network. The storage area for the maintenance work log stored by the maintenance work log storage means for each of the plurality of computer devices, and the old version program stored by the old version file storage means of the plurality of computer apparatuses. Check whether the same old-version program file is stored in the old-file storage area where the same old-version program file is stored in the old-file storage area and if the same old-version program file is stored in duplicate. 5. The computer system according to claim 2, further comprising: an old-version file storage area compressing unit that deletes only one remaining old same-version program file. 8. A computer system is constructed by connecting, via a network, one maintenance-dedicated computer device and one maintenance-targeted computer device having a storage device for storing software program files. The apparatus has a maintenance work unit, a maintenance work log storage unit, and a maintenance work recovery unit, and the maintenance work unit performs maintenance work on the storage device of the maintenance target computer device via the network. The computer system according to claim 1, wherein: 9. A computer system is constructed by connecting, via a network, one maintenance-dedicated computer device and a plurality of maintenance-targeted computer devices having a storage device for storing software program files, and The apparatus has a maintenance work means, a maintenance work log storage means, a maintenance work recovery means, and a maintenance work control means for instructing the contents of the maintenance work for each of the plurality of maintenance target computer devices, and the maintenance work means. The maintenance work means performs maintenance work on the storage devices of each of the plurality of maintenance target computer devices via the network based on an instruction of the work control means. The computer system of claim 1, wherein. 10. The maintenance work instructing means instructs the maintenance work means to perform the same maintenance work on each of a plurality of maintenance-targeted computer devices in one maintenance work. Computer system as described. 11. The maintenance work instructing means instructs the maintenance work means to perform different maintenance work on each of a plurality of maintenance-target computer apparatuses in one maintenance work. Computer system.