JPH0432343A - System file fault detection system - Google Patents

Abstract

PURPOSE:To prevent 2nd occurrence of a fault due to a same cause occurred in a system file and to execute the fault recovery in a short time by providing a storage means storing restoration processing, calling the restoration processing from the storage means on the occurrence of a fault in the communication system and executing sequentially the restoration processing so as to discriminate the fault. CONSTITUTION:When a main storage device 1 stores revision restoration processing A11, A21 of a system file on the occurrence of a fault, a controller 3 reads the revision restoration processing A11 of a system file stored in the main storage device 1, loads it to a system file A so as to restore the revision restoration processing A1 of the system film inputted by a maintenance personnel via a maintenance operation terminal equipment 2. Moreover, the controller 3 discriminates it that the revision A1 of the system file is a cause to the fault and prints it out that the revision A1 of the system file to the maintenance operation terminal equipment 2 is a cause to the fault. Thus, 2nd occurrence of the fault due to a same case in the system file is prevented and the fault restoration is implemented in a short time.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a system file failure detection method when a failure occurs in a communication system.

[Conventional technology]

Conventionally, in a storage program controlled communication system, when a failure occurs, a restart process is performed to initialize a temporary memory provided in a main storage device to temporarily store data. Furthermore,
In this restart process, changes made to the system files entered by the maintainer via the terminal and stored in the main storage device are not restored at all, and all changes related to the system files are restored at once. There is.

[Problem to be solved by the invention]

In the conventional system file failure detection described above, changes to system files input by maintenance personnel are either not restored at all, or are restored all at once. If there are multiple and one of them is causing the failure,
When a failure occurs in a storage program-controlled communication system, it is not possible to automatically detect which changes in the system file caused the failure, either by causing the failure again, or by not causing the failure. However, there is a problem in that it takes a long time to recover from a failure.

SUMMARY OF THE INVENTION An object of the present invention is to provide a system file failure detection method that can prevent failures caused by the same cause from occurring in system files again and can recover from failures in a short time.

[Means to solve the problem]

The system file failure detection method of the present invention is a system file failure detection method for a storage program-controlled communication system having a system file containing change information input from a terminal. A storage means is provided for storing the data for the change when the change is made and a restoration procedure for returning to the state without the change, and when a failure occurs in the communication system, the data for the restoration is stored from the storage means. It is configured to read out the measures I~, execute the restoration measures in sequence, and perform fault determination.

〔Example〕

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

FIG. 1 is a block diagram showing the configuration of a portion of a storage program controlled communication system to which an embodiment of the present invention is applied, which is related to this embodiment. In FIG. 1, the system file failure detection method consists of a main storage device 1, a maintenance operation terminal 2, a control device 3, and data exchange between the maintenance operation terminal 2 and the main storage device 1 according to instructions from the control device 3. It also has a data channel 4 for transmitting and receiving data. Main storage device 1
has a system file A that is sequentially changed due to changes in operating system conditions and the addition of new functions, and a station data file B that is sequentially changed depending on operating station conditions,
For system file A, a maintenance person sends a message to maintenance operation terminal 2.
Change processing to system file A input via 1fA
1 and A2 are restored, system file changes are not restored.
l A11 and A21 are stored when the system file is changed.

In this case, it is assumed that the system file A includes system file changes A1 and A2 inputted by the maintenance person, and that a failure has occurred in this state.The operation will be described below.

The control unit w3 initializes a predetermined temporary memory that is provided in the system file A and the station data file B in the storage device 1 and temporarily stores data, and performs a predetermined restart process. At this time, the control device 3 changes the system file A to the system file change A input by the maintenance person.
I and A2 are included or not, based on whether system file change/restore actions All and A21 are stored in the main storage device 1.

System file changes and restoration outside ir:A in main storage device 1
11 and A21 are not stored, the control device 3 only performs the predetermined restart processing as described above. System file change/restoration actions All and A in main storage device 1
21 is stored, the control device 3 reads out the system file change/restore 1fA11 stored in the main storage device W1, loads it into the system file A,
The system file modification procedure A1 entered by two maintenance personnel via the maintenance operation terminal 2 is restored. As a result, the system file change A1 included in the system file A input by the maintainer is restored, and the system file is brought into the storage state of the system file before the change A1 was made. After that, the storage program controlled communication system is operated for a predetermined period, and if the failure does not occur again, the control device 3 determines that the change A1 of the system file input by the maintenance person is the cause of the failure, It prints on the maintenance operation terminal 2 that the system file change A1- is the cause of the failure.

If the failure occurs again during the predetermined period mentioned above, change A to the system file inputted by the maintenance personnel.
The control device 3 determines that 1 is not the cause of the failure, and the control device 3 loads system file change/restore non-change WA21 stored in the main storage device W1 into the system file A, Restore the system file change action A21. As a result, the system file change A2 included in the system file A input by the maintainer is restored, and the system file is brought into the storage state before the system file change A2 was made. After that, as described above, if the communication system is operated for a predetermined period and the failure does not occur again, the control unit W3 determines that the system file change A2 input by the maintenance person is the cause of the failure. , prints on the maintenance operation terminal 2 that the system file change A2 is the cause of the failure.

If ItIIN occurs again while executing the above-mentioned change i1i'A21 for a predetermined period, the control unit W3 determines that the system file change A2 input by the maintenance person is not the cause of the failure. do.

Furthermore, the control device 3 determines that the cause of the failure is input by the maintenance person by determining that no system file change/restore process other than the system file change/restore process IFAII and A21 is stored in the main storage. A message is printed on the maintenance operation terminal 2 to the effect that this is not a modification of the system file.

In this way, it is possible to easily notify the maintainer which changes caused the failure, and the maintainer can therefore quickly restart the system without using the system files at the time of the failure. I can do two things.

〔Effect of the invention〕

As explained above, if the system file at the time of a failure includes changes to the system file entered by the maintenance personnel, and this change is the cause of the failure, the system automatically changes which system file The system is configured to detect whether a change in the system file is the cause of the failure, and to recover the system file to a state where the change that caused the failure has not been made. This has the effect of preventing failures and enabling recovery from failures in a short time.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of a portion of a storage program controlled communication system to which an embodiment of the present invention is applied, which is related to this embodiment.

Claims (1)

[Claims] In a system file failure detection method in a storage program controlled communication system having a system file containing change information input from a terminal, when the system file is changed, data for the change is sent to the communication system. providing a storage means for storing and storing restoration measures for restoring the state to the unaltered state; when a failure occurs in the communication system, reading the restoration measures from the storage means and sequentially executing the restoration measures; A system file failure detection method characterized by performing failure determination.