JP2723821B2 - Dump collection control method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information processing system used in an office, and more particularly to a dumping control system.

[0002]

2. Description of the Related Art A conventional information processing system employs a dump collection control method in which when a system failure occurs, the contents of a memory are collected in a dump file on a disk, and then the dump file is saved on another save medium. In this case, if a system failure occurs again before saving the dump file, the dump file is overwritten and the previously collected dump data is lost. To solve this problem, for example, Japanese Patent Laid-Open Publication No.
As can be seen from the specification of No. 08422), there has been invented a method of protecting a dump file by preventing the same failure from being collected.

[0003]

In the above-mentioned conventional dump file collection control method, different failures occur continuously even in the method introduced in the above-mentioned publication dealing with the overwriting problem of the dump file. Then, there was a problem that the dump file was overwritten.

[0004]

According to a first aspect of the present invention, there is provided a dump collection control system for an information processing system including a workstation, a CPU, a memory, a disk, and a file save device other than the disk. The overwrite suppression flag provided in advance is checked, and if the overwrite suppression flag indicates "writable", the memory contents are collected in a dump file of the disk and the overwrite suppression flag is set to "write inhibit". In the state shown, the system is restarted by the system restarting mechanism provided in advance,
An automatic disk dump collection mechanism that collects the contents of the memory in a file save device other than the disk if the overwrite suppression flag indicates the “write protected”, and performs a system restart by the system restart mechanism; A dump file saving mechanism that saves the dump file from the disk to a file save device other than the disk after the system restarts, and sets the overwrite suppression flag to a “writable” state when the save is normally completed; and It is characterized by having.

According to a second aspect of the present invention, in the first aspect, the dump file overwrite suppression flag indicates the “write inhibit” state or the “write enable” state in response to the system command of the workstation. A system command designating mechanism.

[0006]

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

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a block diagram showing an embodiment of the dump file overwriting control mechanism 13 of FIG. 1, and FIG. 3 is a hardware configuration example of the present invention. FIG. 4, FIG. 4 is an operation flow diagram when a system failure occurs according to the present invention, and FIG. 5 (a) is an operation flow diagram of the dump file saving mechanism 21 according to the present invention, FIG.
4 is an operation flowchart of the system command designation mechanism 22 of the present invention.

The block configuration of the present invention shown in FIGS. 1 and 2 is generally implemented by hardware shown in FIG.
Disk 33, file save device 35 other than disk
This is achieved by the CPU 31 executing a program on the memory 32 that controls the workstation 34.

When a system failure occurs, the automatic disk dump collecting mechanism 11 checks an overwrite suppression flag (not shown) provided in the system, and turns off the flag.
If writable, the contents of the memory 32 are collected on the disk 33, and the overwrite suppression flag is turned ON, that is, writing is prohibited, and the system is restarted by the system restarting mechanism 12. However, if the overwrite suppression flag is ON, the memory 32 is stored in the file save device 35 other than the disk.
Is collected, the dump file on the disk 33 is protected, and the system restarting mechanism 12 restarts the system.

The dump file saving mechanism 21 in the dump file overwriting control mechanism 13 saves the dump file from the disk 33 to a file saving device 35 other than the disk, and turns off the overwriting suppression flag of the disk dump when the processing is completed normally, thereby overwriting. To give permission. The system command designating mechanism 22 sets the dump file overwrite suppression flag to O from the system command of the workstation 34 without using the dump file saving mechanism 21.
Provides a function that can be turned off.

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

When a system failure occurs, the automatic disk dump collection mechanism 11 checks an overwrite suppression flag (step 41). If the overwrite suppression flag is OFF (step 41), the CPU 31 collects the contents of the memory 32 on the disk 33 (step 42), turns on the overwrite suppression flag (step 43), and restarts the system (step 43). 44). However, if the overwrite suppression flag is ON (step 41), the CPU 31
The contents of 2 are collected in a file save device 35 other than the disk (step 45).

The dump file save device 21 in the dump file control mechanism 13 after the system is restarted is a file save device 35 other than the disk from the disk 33.
Save the dump file (step 51). If the process is normally completed (step 52), the overwrite suppression flag of the disk dump is turned off to permit overwriting (step 53). In case of abnormal termination (Step 5
2) Terminate as it is.

The system command designation mechanism 22 sends an ON / OFF flag of the overwrite suppression flag from the workstation 34.
The designation is input (step 54). If the designation is ON (step 55), the overwrite suppression flag is turned ON (step 56). If the designation is OFF (step 55), the overwrite suppression flag is turned OFF (step 55). 57).

As described above, according to the present invention, even if a system failure occurs again before saving a dump file, it is possible to prevent the dump file from being overwritten and the previously collected dump data from being lost. it can.

[0016]

As described above, according to the present invention, even if multiple system failures occur, important dump files are not destroyed, failure analysis can be easily performed, and the number of maintenances can be improved. There is an effect of doing.

[Brief description of the drawings]

FIG. 1 is a block diagram showing one embodiment of the present invention.

FIG. 2 is a block diagram showing a dump file overwriting control mechanism 13 of FIG.

FIG. 3 is a diagram illustrating a hardware configuration example of the present invention.

FIG. 4 is an operation flowchart when a system failure occurs according to the present invention.

FIG. 5A is a dump file saving mechanism 2 of the present invention.
1 is an operation flow diagram, and (b) is an operation flow diagram of the system command designation mechanism 22 of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Automatic disk dump collecting mechanism 12 System restarting mechanism 13 Dump file overwriting control mechanism 21 Dump file saving mechanism 22 System command specifying mechanism 31 CPU 32 Memory 33 Disk 34 Workstation 35 File saving device other than disk

Continuation of the front page (56) References JP-A-63-188246 (JP, A) JP-A-4-352249 (JP, A) JP-A-3-238534 (JP, A) JP-A-64-17132 (JP) JP-A-4-355842 (JP, A) JP-A-4-336636 (JP, A) JP-A-4-243436 (JP, A) JP-A-4-238550 (JP, A) 4-149749 (JP, A) JP-A-4-54649 (JP, A) JP-A-3-149943 (JP, A) JP-A-3-105434 (JP, A) JP-A-2-50232 (JP, A A) JP-A-1-140348 (JP, A) JP-A-63-316243 (JP, A) JP-A-6-6421 (JP, A) JP-A-5-108446 (JP, A) JP-A-5 -108422 (JP, A) JP-A-5-100917 (JP, A) JP-A-5-88947 (JP, A) JP-A-5-22379 (JP, A) JP-A-6-103119 (JP, A) ) Actually open Hei 5-8651 (JP, U)

Claims (2)

(57) [Claims] 1. A workstation, a CPU, a memory,
In a dump collection control method in an information processing system including a disk and a file save device other than a disk, when a system failure occurs, an overwrite suppression flag provided in the system is checked and the overwrite suppression flag is set to “writable”. Indicates that the contents of the memory are collected in the dump file of the disk, the overwrite suppression flag is set to "write-protected", the system is restarted by a system restart mechanism provided in advance, and the overwriting is performed. An automatic disk dump collection mechanism that collects the contents of the memory in a file save device other than the disk if the suppression flag indicates the “write inhibit” and restarts the system by the system restart mechanism; After restarting the system, A dump file saving mechanism that saves the dump file in a file saving device other than the disk and sets the overwrite suppression flag to a “writable” state when the saving is normally completed. Collection control method. 2. A system command designation mechanism for receiving a system command of the workstation and setting the dump file overwrite suppression flag to a state indicating the “write inhibit” or a state indicating the “writable”. 2. The dump collection control method according to claim 1, wherein: