JPH11328093A - Input/output device information management system for multi-computer system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the efficiency of system generation and the flexibility of system dynamic change during operation of a multi-computer system by collectively managing input/output configuration definition data and input/output configuration reference data in the multi-computer system consisting of plural computers. SOLUTION: A configuration management program 2 manages configuration definitions of all input/output devices of plural computer systems 1 with an input/output configuration definition table 5 in a shared file 3 and generates difference data 6 at the time of the change of input/output configuration. The dynamic change of the system is performed by changing an input/output configuration reference table 7 on a shared memory 4 based on the difference file 6. Input/out device information part 9 and input/output device connection information part 10 are arranged in a matrix form to constitute the input/output configuration definition table 5 and the input/output configuration reference table 7, and input/output devices and systems can be added and deleted 13 and 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for collectively managing input / output device information of a multi-computer system comprising a plurality of computers, and in particular, to define the configuration of all the input / output devices used in the multi-computer system. Of I / O device information that enables simultaneous updating of I / O configuration definition data to be performed and I / O configuration reference data converted into a format that can be referenced when executing data I / O to the I / O device. It relates to a batch management system.

[0002]

2. Description of the Related Art As a conventional technique relating to management of input / output device information, for example, a technique described in Japanese Patent Application Laid-Open No. 4-90024 is known. In this prior art, the generation of a complex system is performed by one system constituting the complex system at a time, and a system-resident volume is generated for each system.

As another conventional technique, for example, a technique described in Japanese Patent Application Laid-Open No. 3-269754 is known. In this prior art, only the unique information of the input / output device is created in advance for each system on a shared file or the like and is made into a database, and the input / output device is configured to combine the connection information of the input / output device and the unique information of the input / output device. A file of device configuration information is created for each system.

Further, as a conventional technique relating to a dynamic change of a system, for example, a technique described in Japanese Patent Application Laid-Open No. Hei 3-175532 is known. In this conventional technique, system generation information converted into a format that can be referred to when executing data input / output to an input / output device is stored in a memory for each system, and when system definition information is changed by a definition program. The other system rereads this system generation information.

[0005]

In the prior art relating to the management of input / output device information, an input / output configuration definition table and an input / output configuration reference table are stored for each system.
There is a problem that the definition of the I / O device shared by the complex system must be duplicated for each system, which reduces the resource use efficiency and increases the processing load of the system due to the duplicate definition. ing.

In the prior art relating to the dynamic change of the system, the input / output device configuration reference table held for each system is re-read by another system. There is a problem that many procedures are required to add, delete, or change an output device.

An object of the present invention is to solve the above-mentioned problems of the prior art, and to provide input / output configuration definition data for defining the configuration of all input / output devices used in a multifunction computer system, and to provide data input / output to / from the input / output devices. Enables collective management of input / output configuration reference data converted to a format that can be referred to at the time of execution, etc., while input / output devices and systems are added, deleted, or changed while the multifunction computer system is operating It is an object of the present invention to provide a management system for input / output device information of a complex system that can dynamically update the input / output configuration definition data and the input / output configuration reference data when such changes are made.

[0008]

According to the present invention, an object of the present invention is to provide an I / O device information management system for a multi-computer system having a plurality of computers. The configuration is defined by I / O device information and I / O device connection information, and the I / O device information is used to specify the type and attribute of each I / O device required when executing data I / O of each I / O device. The input / output device connection information includes data defining a connection relationship between each input / output device and a computer. This is achieved by configuring the computer to be shared by the plurality of computers in the multifunction computer system.

The object of the present invention is to convert the definition of the configuration of the input / output device into a format that can be referred to by each computer when executing input / output of the input / output device in the shared file. Input / output device configuration reference data including information and input / output device connection information, wherein the input / output device information is a type and an attribute of each input / output device required when executing data input / output of each input / output device. This is achieved by that the input / output device connection information includes data defining the connection relationship between each input / output device and the computer.

[0010]

In a multi-computer system comprising a plurality of computers, input / output configuration definition data and input / output configuration reference data are converted into input / output device information, which is device-specific information such as the type and attribute of the input / output device. Since it is composed of I / O device connection information, which is connection information between I / O devices and each system, only one of these data is provided, and all I / O devices used in the complex computer system are Each computer can be associated and managed collectively in the multifunction computer.

In addition, even when an input / output device or system is added, deleted or changed, an arbitrary computer collectively updates the input / output configuration definition data and the input / output configuration reference data at one time. be able to.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a management system for input / output device information of a complex computer system (hereinafter, simply referred to as a complex system) according to the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing a configuration of a complex system to which the present invention is applied, FIG. 2 is a diagram for explaining a configuration example of a configuration management program according to an embodiment of the present invention, and FIG. 3 is a configuration of a system generation mechanism. FIG. 4 is a diagram illustrating an example of the configuration of a system change mechanism, FIG. 5 is a flowchart illustrating processing of a system generation mechanism, FIG. 6 is a flowchart illustrating processing of a system change mechanism, and FIG. FIG. 8 is a diagram for explaining a dynamic change of the system. FIG.
For explaining the processing of the input / output device information section creating means 15a of FIG.
5b, FIG. 10 is a flowchart for explaining the processing of the input / output configuration table diagnosing means 15c, FIG. 11 is a flowchart for explaining the processing of the difference data generating means 15d, and FIG. 12 is a copy of the input / output configuration definition table FIG. 13 is a flowchart for explaining the processing of the means 15e, FIG. 13 is a flowchart for explaining the processing of the related input / output device acquiring means 16a of the system changing mechanism 16, and FIG.
Is a flowchart for explaining the processing of the system dynamic change start notifying means 16b, FIG. 15 is a flowchart for explaining the processing of the input / output device availability setting means 16c, and FIG. 16 is a flowchart for explaining the processing of the input / output device information section changing means 16d. FIG. 17 is a flow chart, FIG.
FIG. 18 is a flowchart for explaining the processing of the system dynamic change end communication means 16f. In FIG. 1, 1 is a computer system, 2
Is a configuration management program, 3 is a shared file, 4 is a shared memory, 5 is an input / output configuration definition table, 5a is a work input / output configuration definition table, 6 is difference data, 7 is an input / output configuration reference table, and 9 is input / output. The device information section 10 is an input / output device connection information section.

FIG. 1 shows a complex system to which the present invention is applied.
As shown in, multiple computers (hereinafter, computer system,
1), a configuration management program 2 for managing the configuration of input / output devices on a plurality of computer systems 1, and a shared file 3 of the plurality of computer systems 1.
And input / output configuration definition data (hereinafter referred to as an input / output configuration definition table) that defines the configuration of all the input / output devices used in the plurality of computer systems 1 arranged in the shared memory 4 and the shared file 3 of the plurality of computer systems 1. ) 5, temporary work input / output configuration definition data 5a for editing the input / output configuration definition table 5 (hereinafter referred to as a work input / output configuration definition table) 5a, and when the input / output configuration definition table 5 is changed Difference data 6 and input / output configuration definition table 5
And input / output configuration reference data (hereinafter, referred to as an input / output configuration reference table) 7 converted into a format that can be referred to when executing data input / output to / from the input / output device arranged in the shared memory 4.

The input / output configuration definition table 5 and the input / output configuration reference table 7 are, as shown as the configuration 8 of the input / output configuration definition table and the input / output configuration reference table, unique information such as the type and attribute of each input / output device. The input / output device information unit 9 defining the input / output device 11 and the input / output device connection information unit 10 defining the connection information 12 between each input / output device and each system are arranged and held in a matrix format. , Addition and deletion of input / output devices 13, addition and deletion of systems 1
4 has a possible structure. The unique information 11 stores information defining an input / output device by system generation, such as an attribute, a name, and an address for executing input / output to the input / output device. The input / output configuration reference table 7 also stores information for the system to manage the input / output device, such as whether or not the device is being used in each system and whether or not the device is in a prohibited state. .

Computer system 1 constituting a complex system
May be provided in all the computer systems constituting the complex system, or may be provided in one or more specific computer systems. Then, this configuration management program 2
As shown in FIG. 2, a system generation mechanism 15 for generating an input / output configuration definition table 5 and difference data 6, and an input / output configuration based on the difference data 6 when the system is dynamically changed while the system is operating. The reference table 7 includes an input / output device and a system change mechanism 16 for adding, deleting, or changing a system. The difference data 6 includes a dynamic change flag, which is referred to when the system change module 16 of the configuration management program 2 executes the dynamic change.

As shown in FIG. 3, the system generation mechanism 15 of the configuration management program 2
Input / output device information section creating means 15a for defining the input / output device information section 9 and the unique information 11, and input / output device connection information for defining the input / output device connection information section 10 and connection information 12 of the input / output configuration definition table 5. Of the input / output device information section 9 and the input / output device connection information section 10 of the input / output configuration definition table 5 defined above, and an input / output configuration definition table diagnosis for diagnosing consistency between systems, etc. Means 15c, a difference data generating means 15d for generating a changed portion of the input / output configuration definition table 5, and data between the input / output configuration definition table 5 and a temporary work input / output configuration definition table 5a for editing. And an input / output configuration table copying means 15e for copying This system generation mechanism 15 updates the input / output configuration definition table 5. Further, the connection information 12 stores path information from a channel necessary for executing input / output to the input / output device to the input / output device via the input / output control device.

As shown in FIG. 4, the system change mechanism 16 of the configuration management program 2 obtains, from the differential data 6, a related input / output device which is affected when the system is dynamically operated while the system is operating. Output device acquisition means 16
a, a system dynamic change start notifying means 16 for notifying the entire complex system of the start of change of the input / output configuration reference table 7
b, input / output device availability setting means 16c for synchronously controlling the availability of related input / output devices throughout the system
And an input / output configuration reference table 7 based on the difference data 6
Input / output device information changing means 16d for changing the input / output device information 9 of the input / output device, and input / output device connection information changing for changing the input / output device connection information 10 of the input / output configuration reference table 7 based on the difference data 6. It comprises a means 16e and a system dynamic change end notifying means 16f for notifying the entire complex system of the end of the change of the input / output configuration reference table 7 and the changed part related to each system. Then, the system change mechanism 16 updates the input / output configuration reference table 7.

Next, in one embodiment of the present invention configured as described above, a process 100 of system generation by the system generation mechanism 15 of the configuration management program 2 will be described with reference to a flowchart shown in FIG.

First, the input / output configuration definition table copying means 15e copies the input / output configuration definition table 5 to the working input / output configuration definition table 5a, and the input / output device information section creating means 15a adds, deletes, or modifies it. It is checked whether there is an input / output device to be used, and while they are present, the input / output device information section 9 is added, deleted or changed in the working input / output configuration definition table 5a.
The unique information 11 of the input / output device is defined (step 1).
01 to 103).

In the processing of steps 102 and 103,
After the update of the table by the input / output device to be deleted or changed is completed, the input / output device connection information section creating unit 15b checks whether there is a system to be added, deleted, or changed. The input / output device connection information section 10 is added, deleted or changed in the configuration definition table 5a (steps 104 and 105).

In the processing of steps 104 and 105,
After the updating of the table by the system to be deleted or changed is completed, the input / output device connection information section creating means 15b uses the input / output device configuration definition table 5a for each input / output device.
Then, the connection information 12 of the input / output device connection information section 10 of each system is changed (step 106).

After the modification of the working input / output configuration definition table 5a is completed, the input / output configuration definition table diagnosing means 15c checks whether there is an error in the definition of the working input / output configuration definition table 5a, and checks the consistency between the systems. It is checked whether or not the corrected work input / output configuration definition table 5a is correct. If there is an error, the process returns to step 102 to correct the work input / output configuration definition table 5a (steps 107 and 108). .

If it is determined in step 108 that the corrected work input / output configuration definition table 5a is correct, it is next checked whether or not the system is dynamically changed while the system is operating. When making a change, the difference data generation means 15d generates difference data 6 (steps 109 and 110).

Next, it is checked whether or not the aforementioned dynamic change of the system is a temporary change of the system. If the dynamic change is a temporary change of the system, the input / output configuration definition table 5 is checked. The process ends without generating (step 111).

If it is determined in step 109 that the system is not dynamically changed, and if it is determined in step 111 that the system is not temporarily changed, the input / output configuration definition table copying means By 15e,
The input / output configuration definition table 5a is copied to the input / output configuration definition table 5 to generate the input / output configuration definition table 5 (step 112).

Next, the processing 3 of the input / output device information part creating means 15a of the system generating mechanism 15 of the configuration management program 2
00 will be described with reference to the flowchart shown in FIG.

It is checked whether there is a change in the work input / output configuration definition table 5a, and if there is no change, the process is terminated (steps 301 and 307). If there is a change in the work input / output configuration definition table 5a and the change is a system change, the system is added and deleted 14 (steps 302 and 303). Work input / output configuration definition table 5a
Is changed and the change is an input / output device change, the input / output device is added and deleted 13 (steps 304 to 3).
05). Further, in the case of adding an input / output device, the unique information 1
1 is generated, and the process returns to step 301, and while the work input / output configuration definition table 5a is changed, the processes after step 302 are repeated (step 306).

Next, the processing 400 of the input / output device connection information section creation means 15b of the system generation mechanism 15 of the configuration management program 2 will be described with reference to the flowchart shown in FIG.

It is checked whether there is any change in the work input / output configuration definition table 5a, and if there is no change, the process is terminated (steps 401 and 403). If it is determined in step 401 that the work input / output configuration definition table 5a is changed, the connection information 12 is added and deleted, and the connection information 12 is added while the work input / output configuration definition table 5a is changed. (Step 4)
02).

Next, the processing 500 of the input / output configuration definition table diagnostic means 15c of the system generation mechanism 15 of the configuration management program 2 will be described with reference to the flowchart shown in FIG.

It is checked whether or not the diagnosis of all the systems has been completed. If the diagnosis of all the systems has been completed, the processing is terminated (steps 501 and 503). Step 501
If it is determined that the diagnosis of all the systems has not been completed, the input / output connection information section of the next system 1 is diagnosed,
The processing of this diagnosis is continued until the diagnosis of all the systems is completed (step 502).

Next, the processing 600 of the difference data generating means 15d of the system generating mechanism 15 of the configuration management program 2 will be described with reference to the flowchart shown in FIG.

It is checked whether or not the search for all the input / output devices in the input / output configuration definition table 5 and the working input / output configuration definition table 5a has been completed. If the search for all the devices has been completed, the process is terminated ( Steps 601 and 604). Step 6
If the search for all devices has not been completed in the determination of 01, the search is continued, and the difference data for the input / output device whose contents of the input / output configuration definition table 5 and the work input / output configuration definition table 5a do not match are generated. 6 is repeated until all devices have been searched (step 60).
2,603).

Next, the processing 700 of the input / output configuration table copy means 15e of the system generation mechanism 15 of the configuration management program 2 will be described with reference to the flowchart shown in FIG.

It is checked whether or not the system generation has been started. If the system generation has been started, the input / output configuration definition table 5 is copied to the working input / output configuration definition table 5a, and the processing is terminated (step 701). , 702, 70
4). If the check in step 701 is not the start of system generation, ie, the end of system generation,
The work input / output configuration definition table 5a is copied to the input / output configuration definition table 5 and the processing is terminated (step 703,
704).

Next, a process 200 for dynamically changing the system during system operation by the system changing mechanism 15 of the configuration management program 2 will be described with reference to the flowchart shown in FIG.

First, the related input / output device which is affected at the time of the dynamic change of the system is acquired from the difference data 6 by the related input / output device acquiring means 16a, and the system dynamic change start notifying means 16b is used. Notify all systems of the start of the dynamic change of the system so that the target change is not performed repeatedly in the complex system. This notification can be performed using any means such as setting an indicator in the memory, performing inter-system communication, locking a file, and the like (steps 201 and 20).
2).

Next, input / output device availability setting means 16c
, The related input / output device is disabled (step 203).

In this state, the input / output device information section changing means 1
6d, while the input / output device information section 9 of the input / output configuration reference table 7 to be added, deleted, or changed exists, the input / output device information section 9 of the input / output configuration reference table 7 relating to those input / output devices is added, deleted, or deleted. A change process is performed (steps 204 and 205).

After the processing of adding, deleting or changing the input / output device information section 9 in the processing of steps 204 and 205 is completed, the input / output device connection information section changing means 16e refers to the input / output configuration to be added, deleted or changed. While the input / output device connection information section 10 of the table 7 is present, processing for adding, deleting, or changing the input / output device connection information section 10 of the input / output configuration reference table 7 for those input / output devices is performed (steps 207 and 208). .

After the change of the input / output configuration reference table 7 is completed by the processing of steps 204 to 207, the associated input / output device including the added input / output device is enabled by the input / output device availability setting means 16c. Set, and finally,
The system dynamic change end notification means 16f notifies the entire system of the release of the availability setting and the end of the dynamic change of the system (steps 208 and 209).

In the above, any one system executes the dynamic change, and the system dynamic change end communication means 16f
After the other system receives the end of the dynamic change, all the systems receive the changed I / O configuration reference table 7
By referring to, other systems are not made aware of the changes.

Next, the processing 80 of the related input / output device acquisition means 16a of the system change mechanism 16 of the configuration management program 2
0 will be described with reference to the flowchart shown in FIG.

It is checked whether or not the related input / output device has been acquired from all the systems, and if the processing for all the systems has been completed, the processing is ended (steps 801 and 803).
If it is determined in step 801 that the related input / output device has not been obtained from all the systems, the related input / output device of the next system 1 is obtained (step 802).

Next, the processing of the system dynamic change start notification means 16b of the system change mechanism 16 of the configuration management program 2 will be described with reference to the flowchart shown in FIG.

It is checked whether or not the communication to all the systems has been completed, and if completed, the process is terminated (steps 901 and 903). If it is determined in step 901 that there is a system that has not been notified yet, the start of the system dynamic change is notified to the next system 1 (step 902).

Next, the processing 1000 of the input / output device availability setting means 16c of the system change mechanism 16 of the configuration management program 2 will be described with reference to the flowchart shown in FIG.

It is checked whether or not the process of disabling the objects and the related input / output devices of all the systems has been completed.
If the process of disabling has been completed, the process ends (steps 1001 and 1003). Step 1001
If it is determined that there is a system that has not yet completed the process of disabling the target and the related input / output device, the target and the related input / output device of the next system 1 are disabled (step 1002).

Next, the processing 1 of the input / output device information section changing means 16d of the system changing mechanism 16 of the configuration management program 2
100 will be described with reference to the flowchart shown in FIG.

It is checked whether or not there is a change in the input / output configuration reference table 7, and if there is no change, the process ends (steps 1101, 1107). If there is a change in the check in step 1101, it is checked whether or not the change is a system change. If the change is a system change, the system is added and deleted 14, and the process returns to step 1101 (step 1102). , 1103). Step 1
If the change in step 102 is not a change in the system, that is, if it is determined that the change is a change in the input / output device, the input / output device is added / deleted 13, and furthermore, this process is entered. If it is an additional output device,
The unique information 11 is generated, the process returns to step 1101, and the processes after step 1101 are repeatedly executed until there is no change in the input / output configuration reference table 7 (step 110).
4-1106).

Next, the processing 1200 of the input / output device connection information section changing means 16e of the system changing mechanism 16 of the configuration management program 2 will be described with reference to the flowchart shown in FIG.

It is checked whether or not there is a change in the input / output configuration reference table 7, and if there is no change, the process is terminated (steps 1201, 1203). If it is determined in step 1201 that there is a change in the input / output configuration reference table 7, the connection information 12 is added and deleted, and the process returns to step 1201 to add and delete the connection information 12 while the table 7 is changed. (Step 1202).

Next, the processing 1300 of the system dynamic change end notification means 16f of the system change mechanism 16 of the configuration management program 2 will be described with reference to the flowchart shown in FIG.

It is checked whether there is any system that has not notified the end of the change. If all the systems have been notified of the end of the change, the process ends (step 13).
01, 1303) If it is determined in step 1301 that there is a system for which the notification of the end of the change has not been completed, the next system 1 is notified of the end of the system dynamic change (step 1302).

Next, the procedure for dynamically changing the complex system is as follows.
This will be described with reference to FIGS. 1, 2, 4 and 7.

As preparation for the dynamic change, the system generation mechanism 15 of the configuration management program 2 on an arbitrary system 1 is prepared in advance.
Thus, difference data 6 is created. Creation of the difference data 6 may be performed any time before the execution of the dynamic change.

The execution of the dynamic change is performed by the system change mechanism 16 of the configuration management program 2 on an arbitrary system 1.

FIG. 7A shows the input / output configuration reference table 7 before the dynamic change. At this time, the input / output device 7a to be deleted or changed can be used from all the systems 1.

The input / output device availability setting means 16 c disables the input / output device 7 a to be deleted or changed on the input / output configuration reference table 7. As a result, these input / output devices 7a to be deleted or changed cannot be used by all the systems 1 [FIG. 7B].

The input / output device information section changing means 16d and the input / output device connection information section changing means 16e change the input / output configuration reference table 7 based on the difference data 6. At this time, the added or changed input / output device 7b is disabled on the input / output configuration table 7 and cannot be used by all the systems 1 [FIG. 7 (c)].

Thereafter, the system dynamic change end notification means 1
6f makes the input / output device 7b added or changed usable on the input / output configuration reference table 7 [FIG. 7 (d)].
Notify all systems of the end of the dynamic change. Thereafter, all the systems can use the input / output device using the changed input / output configuration reference table 7.

When an input / output device and a system are added by the above-described dynamic change processing of the system, the added input / output device becomes usable after the end of the above-described processing, and the added system is started. Can be raised.

According to one embodiment of the present invention described above, in a complex system composed of a plurality of computer systems,
Regardless of the shared and non-shared I / O devices, the configuration of those I / O devices can be defined collectively from any system, and the shared I / O devices need to be defined redundantly between systems. Therefore, the system generation operation can be performed only once without depending on the number of systems, and the system generation efficiency can be improved.

In one embodiment of the present invention, an input / output configuration reference table converted into a format to be referred to when executing data input / output to / from an input / output device is converted from an input / output configuration definition table when an arbitrary system is started. Since they are read and placed on the shared memory so that they can be referred to from all systems, it is not necessary to read the input / output configuration definition table when other systems are started, and it is possible to reduce the system start time.

Further, in one embodiment of the present invention, the input / output configuration definition table and the input / output configuration reference table are configured by arranging the input / output device information section and the input / output device connection information section in a matrix format. Therefore, addition, deletion, or change of the input / output device and the system can be easily performed without limitation, and the flexibility in the system configuration can be improved.

[0067]

As described above, according to the present invention, an input / output configuration definition table that defines the configuration of all input / output devices used in a complex system, Only one input / output configuration reference table converted to a referenceable format is provided in the complex system,
The I / O configuration definition data and I / O configuration can be managed collectively, and when an I / O device or system is added, deleted, or changed while the complex system is running, The reference data can be dynamically updated.

As a result, the present invention can improve the system generation efficiency and shorten the system startup time.
In addition, flexibility in system configuration can be improved.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a compound computer system to which the present invention has been applied.

FIG. 2 is a diagram illustrating a configuration example of a configuration management program according to an embodiment of the present invention.

FIG. 3 is a diagram illustrating a configuration example of a system generation mechanism.

FIG. 4 is a diagram illustrating a configuration example of a system change mechanism.

FIG. 5 is a flowchart illustrating processing of a system generation mechanism.

FIG. 6 is a flowchart illustrating processing of a system change mechanism.

FIG. 7 is a diagram illustrating dynamic change of a complex system.

FIG. 8 is a flowchart for explaining processing of an input / output device information section creation unit 15a of the system generation mechanism 15.

FIG. 9 is a flowchart illustrating processing of an input / output device connection information section creating unit 15b.

FIG. 10 is a flowchart illustrating processing of an input / output configuration definition table diagnosis unit 15c.

FIG. 11 is a flowchart illustrating processing of a difference data generating unit 15d.

FIG. 12 is a flowchart illustrating processing of an input / output configuration definition table copying unit 15e.

FIG. 13 is a flowchart illustrating a process of a related input / output device acquisition unit 16a of the system change mechanism 16.

FIG. 14 is a flowchart illustrating processing of a system dynamic change start notification unit 16b.

FIG. 15 is a flowchart illustrating processing of an input / output device availability setting unit 16c.

FIG. 16 is a flowchart illustrating processing of an input / output device information section changing unit 16d.

FIG. 17 is a flowchart illustrating processing of an input / output device connection information section changing unit 16e.

FIG. 18 is a flowchart illustrating processing of a system dynamic change end notification unit 16f.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Computer system 2 Configuration management program 3 Shared file 4 Shared memory 5 I / O configuration definition table 5a Working I / O configuration definition table 6 Difference data 7 I / O configuration reference table 9 I / O device information section

Claims (9)

[Claims] An I / O device information management system for a multi-computer system having a plurality of computers, wherein the configuration of the I / O device of the multi-computer system is stored in a shared file of the multi-computer system. The input / output device information includes data defining the input / output device such as the type and attribute of each input / output device necessary for executing data input / output of each input / output device. Wherein the I / O device connection information includes data defining a connection relationship between each I / O device and a computer, and wherein some of the I / O devices are the plurality of computers in a multi-computer system. An input / output device information management system for a multifunction computer system, characterized in that the system is configured to be shared with other users. 2. The input / output device according to claim 1, wherein the definition of the configuration of the input / output device is converted into a format that can be referred to by each computer when executing input / output of each input / output device in the shared file. The apparatus further includes input / output device configuration reference data including device information and input / output device connection information, wherein the input / output device information is a type of each input / output device required when executing data input / output of each input / output device, The input / output device connection information includes data defining an input / output device such as an attribute, and the input / output device connection information includes data defining a connection relationship between each input / output device and a computer. An input / output device information management system for a complex computer system. 3. The I / O device configuration according to claim 2, wherein any one of the computers of the complex computer system defines a configuration of an I / O device stored in the shared file and an I / O device configuration stored in the shared memory. Updating means for updating the reference data; and notifying means for notifying an update performed by the updating means to another computer in the multifunction computer system, and adding or deleting an input / output device in the multifunction computer system. Or, the change is necessary to collectively add data necessary for each input / output device information and input / output device connection information in the definition of the input / output device configuration and the input / output device configuration reference data,
An input / output device information management system for a multifunction computer system, characterized in that the system is configured to be executed by deleting or changing. 4. The I / O device configuration according to claim 2, wherein any one of the computers of the complex computer system defines a configuration of an I / O device stored in the shared file and an I / O device configuration stored in the shared memory. Updating means for updating the reference data; and notifying means for notifying an update performed by the updating means to another computer in the multifunction computer system, and adding, deleting, or changing a computer in the multifunction computer system. Collectively add, delete or change data necessary for each input / output device information and input / output device connection information in the definition of the input / output device configuration and the input / output device configuration reference data. An input / output device information management system for a multifunction computer system, characterized in that the system is configured to be executed by a computer. 5. The input / output device information according to claim 1, wherein the input / output device information further includes data defining an address of each input / output device required for executing input / output of each input / output device. An input / output device information management system for a complex computer system. 6. An input / output device information management system for a compound computer system having a plurality of computers, wherein the configuration of the input / output device of the compound computer system is stored in a shared file of the compound computer system. The input / output device information includes data defining the input / output device such as the type and attribute of each input / output device necessary for executing data input / output of each input / output device. Wherein the input / output device connection information includes data defining a connection relationship between each input / output device and a computer, and at least two of the input / output devices are connected to the plurality of input / output devices in a multifunction computer system. An input / output device information management system for a multifunction computer system, wherein the input / output device information management system is configured to be shared by a plurality of computers. 7. The input / output device information management system according to claim 6, wherein the data defining the input / output device includes a device type, a device attribute, and a device address. 8. An I / O device information management system for a multi-computer system having a plurality of computers, wherein the configuration of the I / O device of the multi-computer system is stored in a shared file of the multi-computer system. The input / output device information includes data defining the input / output device such as the type and attribute of each input / output device necessary for executing data input / output of each input / output device. The data defining the input / output device includes data defining software of each input / output device, and the input / output device connection information indicates a connection relationship between each input / output device and a computer. Defining at least two of the input / output devices so as to be shared by the plurality of computers in the multifunction computer system. Output device information management system for a combined computer system with. 9. The input / output device information management system according to claim 8, wherein the data defining the input / output device includes a device type, a device attribute, and a device address.