JPH02173837A - Reserving system for fault information of computer system - Google Patents

Abstract

PURPOSE:To shorten system stop time at the occurrence of a fault by switching immediately a working memory to a stand-by memory and executing a restart and sending the fault information stored in a memory to a remote maintenance center via a communication channel. CONSTITUTION:A memory 11 being a working memory sets the initial value in a normal state to start a computer system 1 and stops the working of the system 1 at the occurrence of a fault. While a stand-by memory 12 sets the initial value equal to that of the memory 11 in a normal state and is kept in a stand-by state. When the fault occurs, a memory switching device 13 immediately switches the memory 11 to the memory 12 and performs the restart of the system 1. Furthermore the communication controller 15 of the system 1 sends the fault information to a remote maintenance center 3 when a CPU 14 reads out the contents of the memory 11 storing the fault information at the collection of the fault information. In such a manner, the stop time of the system 1 is shortened at the occurrence of a fault.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a fault information storage method for a computer system, and in particular, a method for saving fault information obtained when a fault occurs even after restarting the computer system and using it for fault analysis. This paper relates to a fault information storage method for computer systems.

[Conventional technology]

The conventional failure information storage method for computer systems is to transfer the failure information obtained in main memory when a failure occurs from the main memory to an auxiliary storage device such as a magnetic tape device or a floppy disk device, and then store it in the storage medium of the auxiliary storage device. Save it to
The computer system is being restarted.

Furthermore, in the conventional fault information storage method for computer systems, a storage medium storing fault information, such as a magnetic tape or a floppy disk, is transported to a fault analysis center and the fault information is analyzed.

[Problem to be solved by the invention]

The fault information storage method of the conventional computer system mentioned above is as follows.
Since the computer system is restarted after saving the failure information obtained in the main memory when a failure occurs to the storage medium of the auxiliary storage device, the drawback is that the computer system stops for a long time when a failure occurs. have.

In addition, in the conventional fault information storage method for computer systems, storage media such as magnetic tapes and floppy disks that store fault information are transported to a fault analysis center where the fault information is analyzed, making it easy to track down the cause of the fault. It has the disadvantage that it takes time and effort.

The purpose of the present invention is to significantly shorten the time during which a computer system stops when a failure occurs, by immediately switching from operating memory to standby memory and restarting the system when a failure occurs, and to save failure information in memory. It is an object of the present invention to provide a fault information storage method for a computer system that allows fault information to be quickly analyzed and the cause of the fault to be investigated by sending the fault information to a remote maintenance center via a communication line.

[Means to solve the problem]

Fault information storage method for a computer system according to the present invention (A) By setting an initial value and starting up a computer system during normal times, it operates as the main memory of the computer system, and by stopping operation when a fault occurs, (B) A main memory of the computer system that can replace the operational memory by setting initial values and standing by during normal times, and restarting the computer system when a failure occurs. at least one standby memory capable of acting as
(C) By using the operating memory during normal times and switching to one of the standby memories when a failure occurs,
a central processing unit that executes processing of the computer system and reads the contents of the operating memory that stores fault information when collecting fault information; (D) switching between the operating memory and at least one of the standby memories as necessary; (E) a memory switching device connected to the central processing unit; (E) connected to the central processing unit and connected to a remote maintenance center through a communication line; The system includes a communication control device for sending data to a remote maintenance center.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of a failure information storage method for a computer system according to the present invention.

As shown in FIG. 1, the operating memory of the computer system 1,
The memory 11 operates as the main memory of the computer system 1 by setting initial values and starting the computer system 1 during normal times, and also stores failure information by stopping operation when a failure occurs. Can be done.

On the other hand, the memory 12 which is the standby memory of the computer system 1
Under normal conditions, the memory 11 is set to the same initial value as the initial value of the memory 11 and stands by, and when a failure occurs, the memory switching device 13 immediately switches to the memory 11 and restarts the computer system 1 to replace the memory 11. So, computer system 1
can act as the main memory of

Further, the memory switching device 13 of the computer system 1 switches between the memory 11 and the memory 12, and switches the memory 11 and the memory 12 to
can be connected to.

Therefore, the central processing unit 14 of the computer system 1 uses the memory 11 during normal times, and when a failure occurs, the memory switching device 13 switches from the memory 11 to the memory 12.
2 is used to execute the processing of the computer system 1.

Furthermore, the communication control device 15 of the computer system 1 is connected to the central processing unit 14 and also to the remote maintenance center 3 through the communication line 2, and when collecting fault information, the central processing unit 14 is connected to the memory 11 by the memory switching device 13. When switching and reading out the contents of the memory 11 for storing fault information, the read fault information is sent to the remote maintenance center 3.

Thereby, the remote maintenance center 3 can quickly analyze the failure information and investigate the cause of the failure.

In this embodiment, only the memory 12 is used as the standby memory, but by using a plurality of memories as the standby memory, the memory switching device can sequentially switch over the failures that occur one after another. It can also be used as working memory.

As described above, the fault information storage method of the computer system of this embodiment greatly reduces the time it takes for the computer system to stop when a fault occurs by immediately switching from operating memory to standby memory and restarting. By saving the fault information in memory and sending it to a remote maintenance center via a communication line, it is possible to quickly analyze the fault information and find the cause of the fault.

〔Effect of the invention〕

As explained above, the failure information storage method of the computer system of the present invention is: When a failure occurs, the computer system is immediately switched from the operating memory to the standby memory and restarted, thereby significantly reducing the time during which the computer system stops when a failure occurs. In addition to shortening the time, by storing the fault information in memory and sending it to a remote maintenance center via a communication line, it is possible to quickly analyze the fault information and find the cause of the fault.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of a failure information storage method for a computer system according to the present invention. ]...Computer system, 2...Communication line, 3...Remote maintenance center, 11
．． 12...Memory, 13...Memory switching device, 14...Central processing unit, 15...
...Communication control device.

Claims (1)

[Scope of Claims] (A) By setting an initial value and starting up the computer system during normal times, the computer system operates as the main memory of the computer system, and when a failure occurs, the operation is stopped to save failure information. (B) operating memory as the main memory of the computer system in place of the operating memory by setting an initial value and standing by during normal times and restarting the computer system when a failure occurs; (C) by using the operating memory during normal times and switching to one of the standby memories when a failure occurs;
a central processing unit that executes processing of the computer system and reads the contents of the operating memory that stores fault information when collecting fault information; (D) switching between the operating memory and at least one of the standby memories as necessary; (E) a memory switching device connected to the central processing unit; (E) connected to the central processing unit and connected to a remote maintenance center through a communication line; A fault information storage method for a computer system, comprising: a communication control device for sending data to a remote maintenance center.