JPS6365553A - Reliability securing system for input/output device constitution control data - Google Patents

Abstract

PURPOSE:To prevent an input/output device constitution control data having a logical error from existing in a file memory, by executing a control so that said data is not written in the file memory, while the logical error exists in the input/output device constitution control data which has been set and changed. CONSTITUTION:At the time of setting and changing an input/output device constitution control data which has been stored in a file memory 21 of a service processor SVP 2, the input/output device constitution control data is developed once in a main storage intermediate buffer 22a of a storage device 22 of the service processor SVP 2, and set and changed on the main storage intermediate buffer 22a. Also, after having checked a fact that a logical error does not exist in the input/output device constitution control data which has been set and changed, a control is executed so as to store said data in an I/O constitution control data file of the file memory 21. In this way, since it is prevented that the input/output device constitution control data having a logical error exists, setting and change processings can be executed at a high speed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Summary] In a computer system having a service processor (SVP), input/output device configuration control data is set.

In order to solve the problem of an operator setting data with a logical error in the file memory of the service processor (SVP) when making changes, a work buffer is used in the middle, and data on the work buffer is The input/output device configuration control data is expanded to the input/output device configuration control data, and while there is a logical error in the input/output device configuration control data that has been set or changed, the logical This is to prevent input/output device configuration control data with errors from existing in the file memory.

[Industrial application field]

The present invention provides a computer system having a service processor (SVP).
This invention relates to a method for ensuring reliability when setting and changing input/output device configuration control data set in a file memory.

With recent advances in computer technology, more and more data is being processed by computers, and as the processing content of these computer systems becomes more diverse, control methods for channel devices have become more complex, and as a result, input/output devices have become more complex. The content of configuration control data has also become more complex.

For this reason, it has become more necessary than ever to improve the reliability of the contents of the input/output device configuration control data.

[Conventional technology]

FIG. 2 is a diagram showing an example of the configuration of a computer system having a service processor (SVP), and FIG.
10 is a diagram showing a method of setting and changing configuration control data.

A general computer system is equipped with a service processor (SVP) 2 in charge of maintenance and operation, and its file memory (DASD) 21 stores input/output device configuration control data (hereinafter referred to as I10 configuration control data). When a reset command is input from the operator console (CONS) 23 when the power is turned on or the system is started up, the I10 configuration control data stored in the file memory (DASD) 21 is reset. For example, storage device control unit (MCU)
4, it is set in a specific area of the main storage device (MStl) 3.

Thereafter, the central processing unit (CPU) 10 of the main device 1,
Issues an input/output instruction (SIO) and executes the input/output instruction (SrO).
) When the channel device (CO) instructed by Executes the control mode (input/output processing according to the logical type of device (CH) 11 (when the input/output device is busy, whether to perform waiting processing or busy processing, etc.)).

At this time, if there is an abnormality in the input/output process (for example,
When a specified input/output device is not connected, an error in the specification of the machine number, etc.) is detected, the error status is returned to the central processing unit (CPU) 10.

FIG. 3 is a diagram showing a conventional setting and changing method for the above I10 configuration control data, and shows the operator console (C) of the service processor (SVP) 2 in FIG.
Based on instructions from the ONS 23, the I10 configuration control data is retrieved from the file memory (DASD) 21, displayed on the display 24, and configured.

Perform change processing.

At this time, in the conventional method, after the data entered by the operator from the operator console (CONS) 23 is directly written into the file memory (DASD) 21, there are logical errors (for example, machine number assignment) in the written content. On the other hand, whether or not there is an abnormality due to the limit on the number of connected channels, etc. is confirmed by inputting a command from the operator to instruct checking for the logical error.

[Problem that the invention seeks to solve]

That is, in the conventional method, file memory (DASD)
) Whether or not there is a logical error in the I10 configuration control data stored in forget or
Even if an error is detected by inputting the check command, if you neglect to reconfirm the error after correction, a logical error may be hidden in the contents of the I10 configuration control data file. For example, there is a problem in that troubles occur when starting up the system.

In view of the above-mentioned conventional drawbacks, the present invention provides a service processor (
The purpose of this invention is to provide a control method that guarantees the reliability of I10 configuration control data set in the file memory (DASD) of SVP).

[Means for solving problems]

FIG. 1 is a diagram showing a configuration example of a reliability guarantee system for input/output device configuration control data according to the present invention.

In the present invention, a service processor (SV
P) In a computer system having 2, when setting or changing the input/output device configuration control data stored in the file memory 21 of the service processor (SVP) 2, the input/output device configuration control data is transferred to the service processor (SVP) 2. (SVP) Once expanded to the main memory intermediate buffer 22a of the second storage device 22, settings and changes are made on the main memory intermediate buffer 22a, and logic is added to the settings and changed input/output device configuration control data. After checking that there are no errors, the data is controlled to be stored in the T10 configuration control data file in the file memory 21.

[Effect]

That is, according to the present invention, a service processor (Svp)
When setting or changing input/output device configuration control data in a computer system with
In order to solve the problem of setting it in the file memory of
A work buffer is used in the middle, and the relevant input/output device configuration control data is developed on the working buffer, and while there is a logical error in the set or changed input/output device configuration control data, By controlling not to write to the file memory mentioned above, it is possible to prevent input/output device configuration control data with a logical error from existing in the file memory, so settings and changes are not possible. In addition to speeding up the processing, the authenticity of the input/output device configuration control data on the file memory (DASD) is guaranteed, and there are advantages in that troubles at system start-up due to operator setting errors are eliminated.

(Example〕 Embodiments of the present invention will be described in detail below with reference to the drawings.

The above-mentioned FIG. 1 is a diagram showing a configuration example of the reliability guarantee system for input/output device configuration control data of the present invention, which is provided on the storage device (MS) 22 of the service processor (SVP) 2. The present invention is implemented by a means for performing a logical check after expanding the T10 configuration control data in the main memory intermediate buffer 22a and performing setting and modification processing on the T10 configuration control data on the main memory intermediate buffer 22a. It is a necessary means to do so. Note that the same reference numerals indicate the same objects throughout the figures.

Hereinafter, the reliability guarantee method for T10 configuration control data according to the present invention will be explained with reference to FIG. 1 while referring to FIG.

As shown in FIG. 1, in the present invention, from the operator console (CONS) 23, the file memory (D
When starting to display the contents of the T10 configuration control data file in the ASD) 21 on the display 24, the T10 configuration control data is stored in the main memory intermediate buffer 22a provided on the storage device (1'lS) 22. , T10 called from the above file memory (DASD) 21
The configuration control data is expanded, and all subsequent settings and changes are performed on the cough master memory intermediate buffer 22a.

When returning the contents on the main memory intermediate buffer 22a to the file memory (DASD) 21, the above-mentioned logical check is always performed, and if an error exists, for example, the cursor is moved to the location of the error. Thus, while the error exists, the file memory (DA
SD) Function to prevent evacuation of 21.

For example, the writing mechanism to the file memory (DASD) 21 is provided with an error display flag, and while the error display flag is on, the write mechanism to the file memory (DASD) 21 is
) Writing to 21 may be inhibited by hardware or software.

Thus, the present invention provides a service processor (SVP)
In a computer system equipped with a T10 configuration control data stored in the file memory (DASD) of the service processor (SVP), during display processing for setting or changing T10 configuration control data stored in the file memory (DASD), the T10 data read from the file memory (DASD) The configuration control data is displayed on the display and expanded to the main memory intermediate buffer. All settings and changes to the data are performed on the main memory intermediate buffer. When returning to the file memory (DASD), the data is The feature is that a logical check is performed, and when there are no errors, the data is written to the file memory (DASD).

〔Effect of the invention〕

As explained above in detail, the reliability guarantee method for input/output device configuration control data of the present invention is applicable to the service processor (
When setting or changing input/output device configuration control data in a computer system that has a service processor (SVP), an operator may
In order to solve the problem of setting in the file memory of SVP), a work buffer is used in the middle, and the input/output device configuration control data is developed on the work buffer and then set.

By controlling not to write to the file memory while a logical error exists in the changed input/output device configuration control data, the input/output device configuration control data that has a logical error is Since it is designed so that it does not exist in the file memory, settings and changes can be performed at high speed, and the file memory (DASD)
The reliability of the above input/output device configuration control data is guaranteed, and there is an effect that troubles at system start-up due to operator setting errors are eliminated.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing a configuration example of a reliability guarantee system for input/output device configuration control data according to the present invention. FIG. 2 is a diagram showing an example of the configuration of a computer system having a service processor (SVP). FIG. 3 is a diagram showing a conventional I10 configuration control data setting and changing method. It is. In the drawings, 1 is a main unit, 10 is a central processing unit (CPt), and 10 is a central processing unit (CPt).
l). 11 is a channel device (C)I). 2 is a service processor (SVP). 21 is a file memory (DASD). 22 is a storage device (MS). 22a is a main memory intermediate buffer. 23 is operator x 7 saw 7L/ (CONS
). 24 is a display, 3 is a main storage unit i (MSU
). 4 is a storage device control unit (MCU). are shown respectively. atzy, <a i *, '< iku b, i-, u: Eff
-1@

Claims (1)

[Claims] A service processor (SV) that manages the maintenance and operation of the main unit.
In a computer system having a file memory (21) of the service processor (SVP) (2),
), set the input/output device configuration control data stored in
When changing, the input/output device configuration control data is once expanded into the intermediate buffer (22a) on the storage device (22) of the service processor (SVP) (2), and then transferred to the main memory intermediate buffer (22a).
22a) After performing settings and changes on the above, and checking that there are no logical errors in the settings and changed input/output device configuration control data, controlling the data to be stored in the file memory (21). A reliability guarantee method for input/output device configuration control data characterized by: