JPH0962519A - External storage device change system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To change an external storage device constituting a computer system without changing a JCL for referring to the external storage device. SOLUTION: When changing a disk device, a correspondence table registering means 10 registers the correspondence between conventional device attribute 4 . conventional medium name 5 and new device attribute 6 . new medium name 7 on a device correspondence table 9. When a JCL 1 for executing jods is executed, a resource allocating means 11 inputs designated device attribute 2 . designated medium name 3 designated by the JCL 1 and dispatches them to a transforming means 8. The transforming means 8 discriminates whether the conventional device attribute 4 . conventional medium name 5 corresponding to the designated device attribute 2 . designated medium name 3 are registered on the device correspondence table 9 or not, when they are registered, it is discriminated whether the new device attribute 6 . new medium name 7 corresponding to the conventional device attribute 4 . conventional medium name 5 are registered or not and when they are registered, the designated device attribute 2 . designated medium name 3 are transformed into the new device attribute 6 . new medium name 7, which are allocated.

Description

Detailed Description of the Invention

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to various jobs that access an external storage device and execute a business program, and when the external storage device is transferred to another type of external storage device, the job is executed. The present invention relates to an external storage device migration system that provides migration information to be executed without modification.

[0001]

2. Description of the Related Art A disk device has a large capacity, space saving,
In order to meet user needs such as high-speed access and cost reduction, new devices are being researched and developed one after another and commercialized.

This situation, on the other hand, is the number of cylinders /
Various types of devices having different device attributes such as medium, number of tracks / cylinder, storage capacity / track, and recording method have been introduced.

In the prior art, in order for a business program to access a disk device, these device attributes are specified in the job control language (JCL) of the job that executes the business program.

Japanese Patent Laid-Open No. 17533/1990 discloses a technique for converting a program source operating on a computer system to operate on another computer system.

[0005]

In the prior art, when a computer system executing a job for accessing a disk device introduces a new disk device having a different device attribute, the new disk device is used. There was a problem that the JCL of the job had to be changed.

The technique described in Japanese Patent Application Laid-Open No. 2-17533 is to convert a program source operating in a computer system into a preset program source for another computer system, and convert the program source. It does not address the transition without any.

An object of the present invention is to make it possible to easily change the device configuration of a computer system.

Another object of the present invention is to make it possible to change the external storage device constituting the computer system without changing the JCL that refers to the external storage device.

[0009]

A first external storage system migration system according to the present invention newly sets in a computer system a set data of a device attribute and a medium name of a first external storage system constituting a computer system. Correspondence table registration means for registering in the device correspondence table the correspondence between the device attributes of the second external storage device that has been introduced and is migrated from the external storage device and the media name group data
The job control language of the job executed in the computer system is analyzed, the device correspondence table is referred to, and the set data of the device attribute and the medium name of the third external storage device specified in the job control language is matched. The conversion means 8 allocates the second external storage device corresponding to the set data of the first external storage device and the medium name to the job.

The second external storage device migration system of the present invention is a set data of the device attribute and medium name of the first external storage device that constitutes the computer system, and is newly introduced into the computer system, and the external storage device is introduced. Correspondence table registration means for registering the correspondence between the device attribute of the second external storage device transferred from the device and the set data of the medium name in the device correspondence table, and the job control language of the job executed in the computer system are analyzed. , Referring to the device correspondence table, the device attributes and medium names of the first external storage device that match the set data of the device attributes and medium names of the third external storage device specified in the job control language A second external storage device corresponding to the group data is assigned to the job, and a device attribute of the first external storage device that matches the device attribute of the third external storage device and the group data of the medium name in the device correspondence table. Set data of the media name if not registered, and a conversion unit 8 which assign an external storage device of the third with respect to the job with.

A third external storage device migration system of the present invention is a system that is newly introduced into the computer system and the set data of the device attribute and medium name of the first external storage device constituting the computer system. Correspondence table registration means for registering the correspondence between the device attribute of the second external storage device transferred from the device and the set data of the medium name in the device correspondence table, and the job control language of the job executed in the computer system are analyzed. , While inputting the device attribute and medium name of the third external storage device specified in the job control language as group data,
Resource allocation means for allocating an external storage device to the job, and device attributes and medium names of the first external storage device that match the set data of the device attributes and medium names of the third external storage device from the device correspondence table. Of the second external storage device corresponding to the combination data of the device attribute of the first external storage device and the medium name and the combination data of the device attribute of the third external storage device and the medium name of the second external storage device. It is converted into a device attribute and a medium name, and the resource allocation means is instructed to allocate the second external storage device to the job, and the device correspondence table shows the device attribute and medium name of the third external storage device. If the group data of the device attribute and medium name of the first external storage device that matches the group data of No. is not registered, the third external storage device is assigned to the job to the resource allocation unit. Strange to instruct And a means 8.

A fourth external storage system migration system of the present invention is a system which is newly introduced into the computer system and the set data of the device attribute and medium name of the first external storage constituting the computer system. Correspondence table registration means for registering the correspondence between the device attribute of the second external storage device transferred from the device and the set data of the medium name in the device correspondence table, and the job control language of the job executed in the computer system are analyzed. , While inputting the device attribute and medium name of the third external storage device specified in the job control language as group data,
Resource allocation means for allocating an external storage device to the job, and set data of the device attribute and medium name of the third external storage device from the resource allocation means, and the third external storage device is stored in the device correspondence table. Of the device attribute and the medium name of the first external storage device that matches the group data of the device attribute and the medium name of the first external storage device is determined. It is determined whether or not the set data of the device attribute and medium name of the second external storage device corresponding to the set data of the device attribute of the external storage device and the medium name is registered. The set data of the device attribute and the medium name of the third external storage device designated in the job control language is converted into the device attribute and the medium name of the second external storage device, and the job is sent to the resource allocating means. To the second external storage device The device correspondence table is instructed to be assigned, and the set data of the device attribute and medium name of the first external storage device and the set data of the medium name and the second external storage that match the set data of the device attribute and medium name of the third external storage device. When the combination data of the device attribute and the medium name of the device is not registered, the conversion device 8 is configured to instruct the resource allocation device to allocate the third external storage device to the job. .

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described in detail below with reference to the drawings.

Referring to FIG. 1, an external storage device migration system according to an embodiment of the present invention, when a disk device is migrated, has a conventional device attribute 4, a conventional medium name 5, a new device attribute 6, and a new medium. Correspondence table registration means 10 for registering the name 7 in the device correspondence table 9, and when the JCL 1 for executing a job is executed, the designated device attribute 2 and the designated medium name 3 designated in the JCL 1 are input and converted. Resource allocation means 1 to be passed to the means 8
1 and the specified device attribute 2 / specified medium name 3 and the conventional device attribute 4 / conventional medium name 5 passed from the resource allocating means 11 are checked, and if both are the same, the specified device attribute 2 / specified medium name 3 is composed of a corresponding new device attribute 6 and a converting means 8 for converting into a new medium name 7.

Next, the operation of the embodiment of the present invention will be described with reference to FIGS.

First, a process of registering information in the device correspondence table 9 executed prior to the execution of JCL1 will be described.

Correspondence table registration means 9 first uses conventional device attribute 4
And the conventional medium name 5 are input (step 2)
1).

Next, the correspondence table registration means 9 inputs the set data of the new device attribute 6 and the new medium name 7 corresponding to the set data of the conventional device attribute 4 and the conventional medium name 5, and the device correspondence table is entered. 9 is registered (step 22).

Next, a device information conversion process and a device allocation process at the time of executing JCL1 will be described.

The resource allocation means 11 executes the executed JC.
The L1 is analyzed, the designated device attribute 2 and the designated medium name 3 designated in the JCL1 are input and passed to the conversion means 8 (step 31).

The conversion means 8 receives the set data of the designated device attribute 2 and the designated medium name 3 designated in the JCL 1 from the resource allocation means 11 (step 32), and the device correspondence table 9 is set to the designated device attribute 2 and designated medium. Using the group data of name 3 as a key, it is determined whether or not the group data of the conventional device attribute 4 and the conventional medium name 5 corresponding to the group data of the designated device attribute 2 and the designated medium name 3 is registered. (Step 33) If the corresponding conventional device attribute 4 / conventional medium name 5 pair data is registered, the device correspondence table 9 is further added to the conventional device attribute 4
-Search is performed using the group data of the conventional medium name 5 as a key, and whether or not the group data of the conventional device attribute 4 / new device attribute 6 / new medium name 7 corresponding to the group data of the conventional medium name 5 is registered It is determined (step 34), and if the corresponding set data of the new device attribute 6 and the new medium name 7 is registered, JCL
The designated device attribute 2 and designated medium name 3 designated in 1 are converted into the new device attribute 6 and new medium name 7 and returned to the resource allocation means 11 (step 35).

When the converting means 8 determines in the search processing in steps 33 and 34 that there is no matching set data of the device attribute and the medium name, it returns to that effect to the resource allocating means 11 (step 3).
6).

When the resource allocating means 11 returns the new device attribute 6 and the new medium name 7 from the converting means 8, the JC
If a disk device corresponding to the new device attribute 6 and the new medium name 7 is assigned to L1 (step 37), and it is returned that the specified designated device attribute 2 and designated medium name 3 do not exist in the device correspondence table 9, The disk device corresponding to the specified device attribute 2 and the specified medium name 3 is assigned to JCL1 (step 3).
8).

With the above, the processing of the external storage device migration system according to the embodiment of the present invention is completed.

The external storage device migration system according to one embodiment of the present invention has the effect that the external storage device constituting the computer system can be changed without changing the JCL that refers to the external storage device. There is.

[0026]

As described above, the external storage device migration system of the present invention can change the external storage device constituting the computer system without changing the JCL that refers to the external storage device. This has the effect of easily changing the device configuration of the computer system.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of an external storage device migration system according to an embodiment of the present invention.

FIG. 2 is a flow chart showing the processing of a correspondence table registration means 10, a resource allocation means 11, and a conversion means 8 in an embodiment of the present invention.

[Explanation of symbols]

 1 JCL 2 Designated device attribute 3 Designated medium name 4 Conventional device attribute 5 Conventional medium name 6 New device attribute 7 New medium name 8 Conversion means 9 Device correspondence table 10 Correspondence table registration means 11 Resource allocation means

Claims (4)

[Claims] 1. A second external storage device which is newly introduced into the computer system and is migrated from the external storage device, and set data of a device attribute and a medium name of the first external storage device which constitutes the computer system. Correspondence table registration means for registering the correspondence between the device attribute and the set data of the medium name in the device correspondence table, and analyzing the job control language of the job executed in the computer system, referring to the device correspondence table, A second external storage device corresponding to the device attribute and medium name combination data of the first external storage device that matches the device attribute and medium name combination data of the third external storage device specified in the job control language. And a resource allocation means 11 for allocating the job to the job. 2. A second external storage device, which is newly introduced into the computer system and migrated from the external storage device, and set data of a device attribute and a medium name of the first external storage device configuring the computer system. Correspondence table registration means for registering the correspondence between the device attribute and the set data of the medium name in the device correspondence table, and analyzing the job control language of the job executed in the computer system, referring to the device correspondence table, A second external storage device corresponding to the device attribute and medium name combination data of the first external storage device that matches the device attribute and medium name combination data of the third external storage device specified in the job control language. Is assigned to the job, and the device attribute table and the medium name combination data of the first external storage device that matches the device attribute and medium name combination data of the third external storage device are not registered in the device correspondence table. Place The external storage device migration system characterized by comprising a resource allocation unit 11 for allocating the external storage device of the third with respect to the job. 3. A second external storage device, which is newly introduced into the computer system and migrated from the external storage device, and set data of the device attribute and the medium name of the first external storage device which constitutes the computer system. Correspondence table registering means for registering the correspondence between the device attribute and the set data of the medium name in the device correspondence table, and the job control language of the job executed in the computer system is analyzed, and the job control language designated by the job control language is specified. Three
The device attribute and medium name of the external storage device are input as set data, and the resource allocation means assigns the external storage device to the job, and the device attribute and medium name of the third external storage device from the device correspondence table. Of the set data of the device attribute and medium name of the first external storage device matching the set data of the first external storage device, and the set data of the device attribute and medium name of the third external storage device is searched for in the first external storage device. While converting to the device attribute and the medium name of the second external storage device corresponding to the combination data of the device attribute and the medium name, the resource allocation means is instructed to allocate the second external storage device to the job. If the device attribute / medium name combination data of the first external storage device that matches the device attribute / medium name combination data of the third external storage device is not registered in the device correspondence table, the resource Assigner An external storage device migration system, comprising: a conversion unit 8 for instructing a stage to allocate the third external storage device to the job. 4. A second external storage device which is newly introduced into the computer system and is migrated from the external storage device, which is a set data of a device attribute and a medium name of the first external storage device which constitutes the computer system. Correspondence table registering means for registering the correspondence between the device attribute and the set data of the medium name in the device correspondence table, and the job control language of the job executed in the computer system is analyzed, and the job control language designated by the job control language is specified. Three
The device attribute and medium name of the external storage device are input as set data, and the resource assigning unit assigns the external storage device to the job, and the device attribute and medium name of the third external storage device from the resource assigning unit. Of the group data of the
It is determined whether or not the set data of the device attribute and the medium name of the first external storage device that matches the set data of the device attribute and the medium name of the external storage device is registered. Further, it is determined whether or not the set data of the device attribute and the medium name of the second external storage device corresponding to the set data of the device attribute and the medium name of the first external storage device is registered. In this case, the set data of the device attribute and medium name of the third external storage device specified in the job control language is converted into the device attribute and medium name of the second external storage device, and the resource allocation means On the other hand, the first external storage device is instructed to allocate the second external storage device to the job, and the device correspondence table matches the combination data of the device attribute and the medium name of the third external storage device. Attribute and medium name group data and second And a conversion means 8 for instructing the resource allocation means to allocate the third external storage device to the job when the combination data of the device attribute of the external storage device and the medium name is not registered. An external storage device migration system characterized by the above.