JPH0543137B2 - - Google Patents

Description

[Detailed Description of the Invention] [Summary] When performing remote maintenance by transmitting modified data stored in a modified data providing storage medium such as a magnetic tape, managing the modified data becomes complicated and wasteful. In order to solve the problem that data is sometimes sent, the modified data is divided and edited into basic units, only the necessary modified data is sent, and the receiving side restores it to its original format and applies it. It facilitates management and enables efficient transmission and application of modified data.

[Industrial application field]

The present invention provides a remote maintenance control method, in particular, a host processing device that manages remote maintenance sends correction data based on a correction data provision storage medium prepared in advance to a sub-host processing device that is the target of remote maintenance, thereby efficiently making corrections. The present invention relates to a program modification processing method that allows data to be applied.

[Conventional technology]

If there is an error in a program provided to a user, the correction data is stored on a correction data provision storage medium such as a magnetic tape and distributed. Normally, various correction data up to that point is accumulated or aggregated at a certain period of time and distributed as batch correction data, but if there is important and urgent correction data, apart from the batch correction, Create a correction data provision storage medium as emergency correction data and immediately perform maintenance.

If such correction data is transmitted through a telephone line or the like, remote maintenance is possible and convenient. As a method for carrying out remote maintenance, for example, Japanese Patent Application No. 115810/1982 ``Remote Maintenance Method'' has been proposed. However, this method does not directly handle correction data providing storage media such as magnetic tape.

[Problem that the invention seeks to solve]

For example, if all computer systems can be targeted for remote maintenance at the same time, maintenance management can be performed relatively without problems. but,
Due to the number of computers installed, time constraints, and compatibility with existing patch application programs, gradual remote maintenance is required, and direct individual maintenance using conventional correction data provision storage media is not possible. and remote maintenance must coexist. In this case, in order to avoid double management of modified data, it is considered appropriate to perform remote maintenance based on a modified data providing storage medium created for on-site maintenance.

Here, gradual remote maintenance means that the following three types of methods are provisionally mixed so that remote maintenance is possible for all modified data. Depending on the correction data, one of the three types will be selected.

(a) Remote maintenance: The host processing device automatically transmits the contents of the correction data providing storage medium from the host processing device to the sub-host processing device and corrects the program by the correction application processing means. This maintenance method is selected if the amount of modified data is suitable for transmission and can be applied without human intervention.

(b) Individual maintenance after sending: The host processing device automatically performs the process up to sending (a) above (more precisely, until it is restored to a format that can be input to the correction application processing means), and then starts the correction application processing means. performed by maintenance workers. This is an intermediate method between remote maintenance and individual maintenance. Although it is more reliable and efficient to send the corrected data by sending the corrected data, this method is selected for corrected data that requires human intervention when applying the corrected data.

(c) Individual maintenance: After sending the correction data provision storage medium to the sub-host processing device side, the correction application processing means is activated by directly inputting it. Select this method when the amount of modified data is overwhelmingly large and the modified data is not suitable for transmission.

This method (c) has been commonly used in the past, but instead of using the three methods (a) to (c) fixedly and independently, (a) and (b) If method (c) can be similarly implemented as an extension of method (c), it will be a maintenance method that is easily accepted as a system. In other words, it is thought that a system that is easy for system developers to develop and easy for maintenance workers to use will be realized.

In order to enable any of the above three types of maintenance methods for the entire system, specifically, the following problems need to be addressed.

FIG. 6 is a diagram explaining the problem of the present invention.

The modified data providing magnetic tape 12 has a modified control information (MCS) file 13 in its leading portion that stores modified control information. Further, in accordance with the modification control information, relative files 14 to be replaced with the load module to be modified are stored in order. In order to send these modified data to the sub-host processing device, it is necessary to first copy them onto a direct access device (DASD) 30 such as a magnetic disk device before sending them, but this poses the following problem.

The MCS file 13 stores modification control information of various modification levels, and if it is sent as is, all relative files 1 associated with it will be
Since it is necessary to send 4, the amount of data to be sent increases.

Also, some of the relative files 14 may be the same file (for example, a1=c1),
Duplication of file names makes management complicated. In particular, files copied from multiple correction data providing magnetic tapes 12 onto the DASD 30,
When storing and managing files as they are, it is difficult to separate unnecessary files from necessary files, making management complicated.

An object of the present invention is to solve the above-mentioned problems, to efficiently manage modified data, and to enable only the modified data to be applied to a sub-host processing device to be transmitted.

[Means for solving problems]

FIG. 1 is a diagram explaining the principle of the present invention.

In FIG. 1, 10 is a host processing device that manages remote maintenance, 11 is a sub-host processing device that is subject to remote maintenance, 12 is a correction data providing magnetic tape, 13 is a correction control information (MCS) file, and 14 is a relative file. , 15 is a modified data division and editing processing unit that divides and edits the modified data into predetermined basic units; 16 is a modified data storage file in which the modified data is organized in basic units; and 17 is a program installed in the sub-host processing device 11. 18 is a modified data transmission processing unit that sends modified data to the sub-host processing device 11; 20 is a modified data reception processing unit that receives modified data from the host processing device 10; 21 is a receiving processing unit; 22 is a modified data editing and restoring processing unit for re-editing the modified data; 23 is a restored MCS file; 24 is a restored relative file; 25 is a file for storing modified data in an existing program. A modification application processing unit 26 represents a program storage file in which a program to which modifications are applied is stored.

The modified data division editing processing unit 15 extracts an MCS file 13 and a relative file 14 from the modified data providing magnetic tape 12 storing the modified data.
, and according to the contents of MCS file 13, compile the correction data for each level in bulk correction or each item in emergency correction as a basic unit,
This process stores the edited modified data in the modified data storage file 16.

The modified data transmission processing unit 18 refers to the modified level management file 17 and transmits the basic unit of the necessary modified data to the modified data storage file 16.
, and transmits the information to each sub-host processing device 11.

The modified data reception processing unit 20 receives modified data from the host processing device 10 using a file transfer protocol, and stores the modified data in a modified data storage file 21 in the sub-host processing device 11.

The modified data editing and restoration processing unit 22 restores the MCS file 23 and relative file 24 that match the input format of the modification application processing unit 25 from the modified data storage file 21. As a result, the modification application processing unit 25 can read the MCS file 23 and the relative file 24 from the modification data providing magnetic tape 12 in conventional individual maintenance and apply the modification data, and in the same way that the modification application processing unit 25 can apply the modification data to the program in the case of remote maintenance. Modifications can be made to the programs in the storage file 26.

[Effect]

According to the present invention, the modified data division editing processing section 1
5, the modified data is edited in basic units, so that the modified data can be managed correctly in the modified data storage file 16. Further, since unnecessary correction data and necessary correction data can be separated, the correction data transmission processing section 18 can send only the basic unit of necessary correction data.

On the sub-host processing device 11 side, the received data is processed by the modified data editing and restoration processing unit 22.
Since it is converted into the input format of the correction application processing unit 25, it is compatible with conventional individual maintenance in which corrections are made directly from the correction data providing magnetic tape 12.

〔Example〕

FIG. 2 is an example of modified data editing according to an embodiment of the present invention, FIG. 3 is an example of division editing processing according to an embodiment of the present invention, and FIG. 4 is modified data used in an embodiment of the present invention. FIG. 5 shows an example of a restoration process according to an embodiment of the present invention.

For example, the contents of the correction data providing magnetic tape 12 shown in FIG. 1 are stored in the MCS file 13 shown in FIG.
and each relative file 14. This MCS file 13 contains data for batch correction.

In MCS file 13, “++
Between the “PROGRAM” and “++ENDPGM” sentences,
This corresponds to level 1 in batch correction. The modified data division/edit processing unit 15 shown in FIG. 1 divides the modified data into basic units.
PROGRAM" statement as a delimiter.

"++PROGRAM (FORT77)" indicates that the program to be modified is FORT77.
The following "PGMVL (V10L10)" is subject to correction.
Indicates that the version level of FORT77 is V10L10.

"++PTF (UC00123)" has a modification number.
This indicates a modification of UC00123, and "FILE(1)" indicates that there is one relative file 14 that belongs to this modification. The next "++PTF (AV00135)" has
The FILE description is omitted, indicating that there is no relative file belonging to this modification, and that modification data follows this statement.

"++ENDPGM" indicates the end of the modified data corresponding to "++PROGRAM". In batch correction, the data up to this point becomes one basic unit of MCS data.

The following "++PROGRAM..." is the M/S data of the second basic unit. In this second batch modification, we will use the same program FORT7 as the first one.
7 is targeted for correction, and the batch correction level is
It is named V85071. Here, the modification number is
UC00124 and relative file 14 belonging to this
However, two are specified.

When dividing/editing, the MCS data of the first basic unit in MCS file 13 and the file name are
Together with relative file 14 of UC00123.F1,
The MCS data of the second basic unit in the MCS file 13 and the two relative files 14 with file names UC00124.F1 and UC00124.F2 are stored together in the modified data storage file 16. do. The modified data storage file 16 is composed of, for example, a VSAM data set. Note that the MCS file 13 and the relative file 14 are sequential data sets.

The batch modification level of FORT77 in the sub-host processing device 11 is checked by referring to the modification level management file 17. If this is a V85051, send only the modified data for the new V85071, which is the second basic unit, and send it to the sub-host processing unit 11.
It is stored in the modified data storage file 21 on the side.

From the contents of this modified data storage file 21,
By restoring the management format to the same as the original correction data providing magnetic tape 12, the second
The MCS file 23 and two relative files 24 shown in the figure are created. This becomes input data to the existing correction application processing unit 25 shown in FIG.

The division/editing process described above is performed, for example, as shown in FIG. In this example, a list 31 of corrected data shown in FIG. 4 is created, and processing is performed using this. This correction data list 31 includes the program name, version level, batch correction level or emergency correction number, start record position of MCS data, end record position of MCS data, relative file belonging to this correction data. Information such as the number of is stored.

~ in the following description corresponds to the process ~ shown in FIG.

Correction data providing magnetic tape 12 shown in FIG.
Read MCS file 13 record by record.

If a "++PROGRAM" statement is detected, this statement is analyzed and the program name, version level, and
Set the batch correction level in the correction data list 31 in the control table. Furthermore, this “+
+PROGRAM” statement record position list Table 31
Set to .

When a "++PTF" statement is detected, this statement is analyzed and the number of relative files belonging to this modified data is added to the value in the modified data list 31.

When a "++ENDPGM" statement is detected, the record position of this statement is set in the correction data list 31. This record position is the end position of the MCS data.

If a sentence other than the above is detected, control is transferred to processing.

If there are no more unprocessed records in the MCS file, control is transferred to processing.

Copy records from an MCS file to an MCS file on a direct access device (DASD).
The MCS file on this DASD is a temporary file prepared for work.

Read the list of modified data for each basic unit of modified data. When there are no more unprocessed basic units, the process ends.

Regarding the unprocessed basic unit, the MCS data from the start record position to the end record position is read from the MCS file on the DASD and stored in the modified data storage file 16.

In the correction data list 31, if the number of relative files is 0, there is no relative file belonging to this basic unit, so control is transferred to processing,
Process the next basic unit. If the number of relative files is 1 or more, there is a relative file belonging to this basic unit, and control is shifted to processing.

The relative file 14 is read from the modified data providing magnetic tape 12 and its contents are stored in the modified data storage file 16 following the MCS data. Stores the contents of all relative files belonging to that base unit. After that, control is returned to the process and the process is repeated in the same manner.

The above division/editing process is repeated for each corrected data providing magnetic tape 12 if there are a plurality of corrected data providing magnetic tapes 12.

The modified data editing/restoring processing section 22 in the sub-host processing device 11 performs processing as shown in FIG. 5, for example. ~ in the following explanation
corresponds to the process shown in FIG.

The correction data storage file 21 is read and a list of correction data to be applied is created.

Read the list of correction data to be applied for each basic unit of correction data. When there are no more unprocessed basic units, processing ends. If there is an unprocessed basic unit, control is transferred to processing.

The basic unit MCS data is read from the modified data storage file and added to the MCS file 23. However, in the first basic unit processing, the MCS file 23 is allocated on the DASD and the MCS data is stored in that file.

Determine whether there is a relative file belonging to that basic unit. If so, transfer control to processing. If there is no such unit, control is transferred to processing in order to process the next basic unit.

Next, read the contents of the relative file belonging to the basic unit from the modified data storage file 21,
Create a relative file 24 on DASD. Once all relative files belonging to the basic unit have been created, control is returned to processing.

In the above example, a batch correction was explained, but in an emergency correction, each item is stored in the correction data storage file 16 as a basic unit. The modification control information for each item includes the program name, version level,
A modification number and the like are prepared as identification information, and the delimitation of basic units is indicated by, for example, the sentence "++SDR". Other than the basic unit delimiter, it is the same as in the case of batch correction.

〔Effect of the invention〕

As described above, according to the present invention, modified data can be managed efficiently and only modified data to be applied to a sub-host processing device can be transmitted. Additionally, existing systems can be maintained remotely while maintaining compatibility with conventional systems.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of the principle of the present invention, FIG. 2 is an example of corrected data editing according to an embodiment of the present invention, FIG. 3 is an example of division editing processing according to an embodiment of the present invention, and FIG. An example of a list of corrected data used in one embodiment of the present invention, FIG. 5 shows an example of restoration processing according to one embodiment of the present invention, and FIG. 6 is a diagram illustrating problems of the present invention. In the figure, 10 is a host processing device, 11 is a sub-host processing device, 12 is a correction data providing magnetic tape,
13 is MCS file, 14 is relative file, 1
Reference numeral 5 denotes a modified data division and editing processing section, 16 a modified data storage file, 17 a modification level management file, 18 a modified data transmission processing section, 20 a modified data reception processing section, 21 a modified data storage file, and 22 modified data. The editing restoration processing unit 23 is
24 is a relative file, 25 is a modification application processing unit, and 26 is a program storage file.

Claims (1)

[Scope of Claims] 1. A sub-host processing device 11 equipped with a modification application processing means 25 that applies modifications to a specified program based on given modification data, and capable of communicating with the sub-host processing device 11 via a line. In the program correction processing method in a system having a host processing device 10 connected to Alternatively, the process of dividing and editing the corrected data for each case as a basic unit in emergency correction and storing it in the corrected data storage file 16, and the basic unit of the corrected data to be applied in the sub-host processing device 11 is stored in the corrected data storage file. 16 and the sub-host processing device 1
1, and the sub-host processing device 11 executes a process of editing and restoring the received correction data into a format that can be input by the correction application processing means 25 in the sub-host processing device 11, and restoring. A program modification processing method characterized in that the program is modified by the modification application processing means 25 based on the modified modification data.