JPH0319060A - Automatic creation system for device control block in process system - Google Patents

Abstract

PURPOSE:To reduce the load of a worker for creation or change of the device configuration definition information by making a diagnostic monitor create originally the device configuration definition information at a diagnostic operation without using the same information prepared in a process system. CONSTITUTION:A device control block creation function 14 is added to a process system 10. When the system 10 is started, the device control blocks are not collectively created for both devices 12 and 13 connected to the system 10. Instead the presence or absence of the device control block is checked every time a request is created for transfer of signals between the devices 12 and 13 during the operation of the system 10. When the absence of the control block is confirmed, the information on the relevant device is collected and the device is recognized. Then the control block of the device is created. As a result, the system 10 recognizes automatically the actual device configuration and can produce the device control block. Thus it is possible to reduce the load of a worker for creation or change of the device configuration definition information.

Description

[Detailed Description of the Invention] [Summary] Regarding a method of automatically creating a device management block (UCB) used for device management in a processing system, the burden on the operator required to create or change device configuration definition information in the processing system is reduced. In order to reduce this problem, the aim is to realize a method that allows the system to automatically recognize the actual device configuration and create a device management block.

If a device management block creation function is installed in the processing system, when the system is started up, device management blocks will not be generated all at once for each device connected to the system.
When an input/output interrupt is raised from one of the devices to notify that the power has been turned on and the device is ready,
When an input/output request that specifies one of the devices is made from a processing program, check whether a device management block has been created for each device.

If it has not been created yet, it is configured to collect necessary information from the relevant device and processing program and create a device management block.

C. Industrial Application Field] The present invention relates to a method for automatically creating a device management plotter (UCB) used for device management in a processing system, and particularly relates to a diagnostic system for performing maintenance and inspection of a processing system at a user's site. This invention relates to an automatic creation method of device management blocks useful for.

Generally, in order to check the functionality of a processing system at a user's site, a method is used in which a diagnostic monitor (program) is installed in the processing system and operated as a diagnostic system to collect failure information.

However, since the system configurations of user processing systems vary depending on the user, the device management block of the nine diagnostic systems must correspond to the configuration of the user's processing system, which requires complicated operations.

The present invention provides a method in which a device management block for a component device can be automatically created based on the actual device in a processing system.

[Conventional technology]

FIG. 3 shows a method for creating a device management block in a conventional processing system.

In FIG. 3, system device configuration definition information 2 stored in a file device 1 such as a magnetic disk device is as follows:
Each component of the system (hereinafter referred to as a device)
It maintains information about the device, such as its address and device type.

First, device configuration definition information 2 is developed on memory in IPL processing 3 when starting up the system.

The UCB management unit 4 of O3 places a pointer on the device configuration definition information developed on the memory, and stores the device management block U of 5.
Create CB.

Each of the UCB5s created in this way.

Device #1, denoted by 6. #2. #3. It corresponds to each of...

The above device configuration definition information 2 is created by the operator when editing the system firmware by defining the type of device connected to each device address, the device number assigned for device specification, etc. and reflects the state of the devices connected at the time.

[Problem to be solved by the invention]

Generally, when defining a device configuration, you may make a mistake in the device connection address, or you may need to change the connection address.

Device configuration definition information must be redefined 2
It's a hassle.

When diagnosing a processing system at a user's site, the maintenance worker first loads the firmware from the user's disk device containing the normal OS (IMPL) in order to start up the system according to the user's device configuration. , enter the device configuration definition information, and then install the diagnostic monitor from the floppy disk prepared by the maintenance worker.
A diagnostic system has been realized. However, the format of the device configuration definition information on the user Oos side and the format of the device configuration definition information on the 1 diagnostic monitor side may differ, and in that case, the format of the device configuration definition information must be converted before creating the UCB. Must be.

The present invention aims to realize a method in which the system can automatically recognize the actual device configuration and create a device management block in order to reduce the burden on workers required to create or change device configuration definition information in a processing system. The purpose is

[Means to solve the problem]

The present invention was made by focusing on the fact that the information necessary for device configuration definition can be obtained from the device itself and the processing program. Each time a request for signal exchange with a device occurs, the presence or absence of a device management block is checked, and if there is no device management block, the device information of the device is collected and device recognition is performed.

The device management block is created accordingly.

FIG. 1 is a diagram showing the principle of the present invention, and shows a case where the present invention is applied to diagnosis of a processing system.

In FIG.

Reference numeral 10 denotes a 9-diagnosis monitor, which is installed, for example, in a processing system at a user's site and performs 2-diagnosis processing.

11 is a processing program.

12.13 is the input/output device device #2.1 that constitutes the processing system. This is #3.

Reference numeral 14 denotes a device management block creation function provided within the second diagnostic monitor 10.

15 is a chain of nine created device management blocks UCB.

Device #2. #3 raises an interrupt signal called AVR when the power is turned on and ready for operation.
When the diagnostic monitor 10 detects an AVR, it starts the device management block creation function 14.

The UCB chain 15 is searched to check whether the UCB of the device that raised the 1 interrupt signal has been created. And U
If the CB has not been created yet, necessary device information is obtained from the device, a UCB is created, and the UCB is connected to the chain 15.

Also, when the processing program 11 issues an input/output request, the diagnostic monitor 10 searches the UCB chain 15 using the address of the device specified in the input/output request, and if the corresponding UCB is not found, the Obtain device information from , create a new UCB, and start the device.

In this way, IJcB is created sequentially for devices connected to the system during the 2nd diagnosis operation.
enabled.

[Operation] In the processing system shown in FIG. 1, during one diagnostic operation, the diagnostic monitor independently creates the device configuration definition information during the operation without using the device configuration definition information provided in advance by the processing system.

Therefore, there is no need to redefine the device configuration definition when an error exists or when the configuration is changed, and there is no need to consider the difference in the format of the device configuration definition information between the original O3 of the processing system and the diagnostic monitor.

〔Example〕

FIG. 2 shows the configuration of a system according to an embodiment of the present invention.

In FIG. 2, 20 is a diagnostic monitor, 21 is a processing program, 22 is device #3, and 23 is device #4, 2.
Reference numeral 4 indicates an interrupt processing section in the diagnostic monitor, 25 indicates a device startup processing section, and 26 indicates a UCB chain.

The original function of the interrupt processing unit 24 is to respond to an AVR interrupt from any device and perform the illusion of registering that device in the system as a usable device. UCB creation processing is performed in the preprocessing stage.

The illustrated example shows a case where the AVR is raised from device #3, but in this case, the interrupt processing unit 24
It is checked whether the UCB of the device having the address #3 has been created by the chain 26. If it has not been created, issue a sense command to device #3, obtain device information from device #3, create a UCB, connect it to chain 26, and then perform the original interrupt control of 2. Execute.

On the other hand, the original function of the device activation processing unit 25 is to activate a device at a designated address in response to an input/output request Exio from the processing program 21. At this stage, UCB creation processing is performed.

In the illustrated example, the processing program 21 is Exi.

When issuing the UCB, the device startup processing unit first checks on the chain 26 whether or not the UCB with the specified address #4 has been created, and if it has not been created, the device startup processing unit
4, the device information is acquired, a UCB is created, and the UCB is connected to the chain 26, and then the original device startup process is executed based on this UCB.

〔Effect of the invention〕

According to the present invention, unlike conventional device configuration definition information is not used, the burden of changing the configuration of the processing system or redefining due to device configuration definition errors is reduced. In particular, when it is necessary to create device management blocks for user processing systems with various configurations, such as when diagnosing user processing systems, it is necessary to convert the format of device configuration definition information, etc. This is because the troublesome work of

Diagnostic work can be made more efficient.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of the principle of the present invention, FIG. 2 is an explanatory diagram of a system according to an embodiment of the present invention, and FIG. 3 is an explanatory diagram of a conventional device management block creation method. 10 in FIG. 1: Diagnostic monitor 11: Processing program 12.13: Device #2. #3 14: Device management block creation function 15: UCB chain

Claims (2)

[Claims] (1) A device management block creation function is provided in the processing system, and when the system is started up, the device management block is not generated for each device connected to the system at once, and the power is turned on from one of the devices. When the input/output interrupt is raised to notify that it is ready,
When an input/output request that specifies one of the devices is made from a process program or a device, it is checked whether a device management block has been created for each device, and if it has not been created yet, the device and the process program A device management block automatic creation method in a processing system characterized by collecting necessary information from a computer, creating a device management block, and managing the device management block so that it can be used thereafter. (2) In claim (1), the device management block in the processing system is characterized in that the processing system is a processing system at a user's site, and the processing system is equipped with a diagnostic monitor to perform diagnostic operation. Automatic creation method.