JPH0334038A - Collection system for fault analysis information on peripheral controller - Google Patents

Abstract

PURPOSE:To prevent the loss of the fault analysis information and to early analyze a fault by storing immediately the fault analysis information on a peripheral controller into an error log file at occurrence of a fault of the peripheral controller. CONSTITUTION:An operating system which works at a CPU 2 produces a reset instruction to a peripheral controller 3 having a fault. Thus the controller 3 is reset but a saving area 31 is not cleared. As a result, the fault analysis information is stored as it is. Then the operating system reads the fault analysis information to a fault analysis information store area in a software area 12 and stores the fault analysis information to an error log file 51. Thus the fault early is analyzed and at the same time the loss of the fault analysis information is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a failure analysis information collection method for a peripheral control device that collects failure analysis information of a peripheral control VTX used in an information processing system.

[Conventional technology]

A peripheral that has a function that automatically saves failure analysis information to the evacuation area of its own device when a failure event occurs, and does not clear the contents of the evacuation area even if there is an instruction from a higher-level device such as a central processing unit. Control devices have been proposed in the past. By the way, in an information processing system using such a peripheral control device, what is the peripheral system? When the operating system detects a fault in the 11vt device, it issues a reset instruction to the peripheral control device where the fault has occurred, and continues to use the peripheral control device where the fault has occurred once the fault has been reset. Therefore, the failure analysis information saved in the save area of the peripheral control device is read out after the system operation is completed or when the peripheral control device in which the failure has occurred is disconnected from the system.

[Problems to be Solved by the Invention] Conventionally, as described above, after system operation is completed or when a peripheral control device in which a fault has occurred is disconnected from the system,
Since the failure analysis information saved in the save area of the peripheral control device is read out, there is a problem that failure analysis is delayed. Additionally, if a failure occurs again after resetting, the failure analysis information for the current failure will be overwritten in the backup area of the peripheral control device, causing the problem that failure analysis information for the previous failure will be lost. , if failure analysis information about a previous failure was required, a reproduction test had to be performed.

An object of the present invention is to enable early failure analysis and to prevent failure analysis information from being lost.

[Means to solve the problem]

In order to achieve the above object, the present invention includes: a main storage device having a hardware-only area and a software area; a central processing unit having a function of transferring information in the software area to the hardware-only area; and the Birdownia-only area. and a peripheral control device that has a function of saving failure analysis information in a save area within its own device when a failure event occurs and not clearing the save area even when a reset instruction is issued. In the processing system, when a failure event occurs in the peripheral control device,
giving a reset instruction to the peripheral control rIj device;
After reading the fault analysis information saved in the save area of the peripheral control device to the software area of the main storage device, the peripheral control device is instructed to restart processing, and the fault analysis information stored in the main storage device is A fault processing means for outputting a log instruction for logging analysis information, and an error log file in which information is written by the service processor are provided, and the central processing unit is configured to: The failure analysis information stored in the software area is transferred to the hardware dedicated area and a log instruction is output to the service processor, and the service processor receives the log instruction from the central processing unit. , storing the failure analysis information stored in the hardware dedicated area in the error log file.

[For production]

When a failure event occurs in a peripheral control device, the peripheral control device saves failure analysis information in an evacuation area within its own device. Additionally, the fault processing means issues a reset instruction to the peripheral control device, reads out the fault analysis information saved in the save area of the peripheral control device to the software area of the main storage device, and then instructs the peripheral control device to resume processing. At the same time, it outputs a log command to log the failure analysis information stored in the main storage device. When the log instruction is output from the failure processing means, the central processing unit transfers the failure analysis information stored in the software area to the hardware dedicated area and outputs the log instruction to the service processor,
The service processor writes the failure analysis information transferred to the hardware-dedicated area into an error log file when a log instruction is output from the central processing unit.

〔Example〕

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

FIG. 1 is a block diagram of an embodiment of the present invention, showing a main memory 1 including a hardware-only area 11 that can only be accessed by hardware and a software area 12 that can also be accessed by software; Software area 12 of memory 1
A central processing bag [(CPU) 2 that has a function of transferring the information of
Peripheral control device (
PCU) and hardware dedicated area 1 of main memory 1
A service processor (S
VP) 4 and a magnetic disk device 5 provided with an error log file 51.

FIGS. 2 to 4 are flowcharts showing the processing operation of FIG. 1 when a failure occurs in the peripheral control device 3. FIG. 2 shows an example of the processing of the operating system (O3), and FIG. An example of processing by the central processing unit 2 is shown in FIG. 4, and an example of processing by the service processor 4 is shown in FIG.

Next, the operation of this embodiment will be explained with reference to each figure.

When a failure occurs in the peripheral control device 3, the failure analysis information is saved in the save area 31, and when the operating system running on the central processing unit 2 detects a failure in the peripheral control device 3 during system operation, the peripheral control device 3 saves the failure analysis information in the save area 31. The process shown in the flowchart of FIG. 2 is started.

First, the operating system issues a reset command to the peripheral control device 3 in which a failure has occurred in the step 100, and the peripheral control device 3 is thereby reset. However, the save area 31 is not cleared and the failure analysis information is saved as is. Next, in step 101, the operating system reads failure analysis information corresponding to the capacity of a failure analysis information storage area provided in its resident area (existing in the software area 12) for storing failure analysis information. As a result, failure analysis information is read into the failure analysis information storage area in the software area 12. Thereafter, in step 102, the failure analysis information storage area in the software area 12 is read out. The failure analysis information read in the error log file 5
Issues a CPU instruction to store the data to 1.

When the CPU command is issued, the central processing unit 2 executes the third CPU command.
As shown in the flowchart in the figure, first, in step 200, information instructed by the CPU command, that is, failure analysis information stored in the failure analysis information storage area of the software area 12, is transferred to the hardware dedicated area 11. , in the next step 201, instructs the service processor 4 to log the failure analysis information stored in the hardware dedicated area 11 to the error log file 51;
Thereafter, the processing for the CPU instruction is completed. Further, when the service processor 4 receives a storage instruction from the central processing unit 2, it performs the process shown in the flowchart of FIG.
The failure analysis information stored in the hardware dedicated area 11 of the main memory l is read and the error log file 51 is
(step 300).

When the operating system issues the CPLI command in step 102 of FIG. 2, it instructs the peripheral control unit N3 to restart processing in the next step 103, and then checks whether all failure analysis information has been read out in step 104. to judge. That is, it is determined whether or not all the failure analysis information saved in the save area 31 of the peripheral control device 3 has been read out by the successive instruction issued in step 101.

If it is determined that all the failure analysis information has not been read, an area for storing the failure analysis information (other than the resident area of the operating system) is secured in the software area 12, and the area for reading out the failure analysis information is secured in the software area 12. A continuation command is issued to instruct reading out of the failure analysis information that has not been completed (Stennob 105), thereby reading out the failure analysis information that has not been read out to the above area. Then,
The operating system stores the failure analysis information read in the above area of the software area 12 in the error log file 5.
A CPU instruction is issued to instruct storage to 1 (step 106), and the process then returns to normal processing. Further, if it is determined in step 104 that all failure analysis information has been read, the process immediately returns to normal processing. In this way, in this embodiment, after the failure analysis information is stored in the failure analysis information storage area provided in the resident area of the operating system, the processing of the peripheral control device 3 is immediately restarted, and all the failure analysis information is stored as described above. If the failure analysis information cannot be stored in the failure analysis information storage area, an area other than the resident area is secured after the processing of the peripheral control device 3 is resumed, and the remaining failure analysis information is stored in that area. Because there is
The processing of the peripheral control device 3 can be restarted quickly without increasing the resident area of the operating system.

When the CPU instruction is issued in step 106, the central processing unit 2 executes step 200 as shown in the flowchart of FIG.
In this step, the failure analysis information stored in the area secured in the software area 12, that is, the failure analysis information that could not be read in step 101, is transferred to the hardware dedicated area 1, and then in the next step 201. The failure analysis information stored in the hardware dedicated area 11 is sent to the service processor 4 in the error log file 51.
Instructs to store it in Further, upon receiving the above instruction, the service processor 4 stores the failure analysis information stored in the hardware dedicated area 11 of the steno knob 300 in the error log file 51, as shown in the flowchart of FIG.

〔Effect of the invention〕

As explained above, in the present invention, when a failure occurs in a peripheral control device, the failure analysis information in the peripheral control device is immediately stored in the error log file, so that the failure analysis information is not lost. Another advantage is that failure analysis can be performed at an early stage.

[Brief explanation of drawings]

Fig. 1 is a block diagram of an embodiment of the present invention, Fig. 2 is a flowchart showing an example of processing by the operating system, Fig. 3 is a flowchart showing an example of processing by the central processing unit, and Fig. 4 is an example of processing by the service processor. FIG. In the figure, 1... Main memory, 2... Central processing unit (CPU), 3... Peripheral control unit (PCU),
4... Service processor (SVP), 5... Magnetic disk device, 11... Hardware dedicated area, 1
2...Software area, 31...Evacuation area, 51
...Error log file.

Claims (1)

[Scope of Claims] A main storage device having a hardware-only area and a software area; a central processing unit having a function of transferring information in the software area to the hardware-only area; An information processing system including a service processor having a reading function, and a peripheral control device having a function of saving failure analysis information in a save area within its own device when a failure event occurs and not clearing the save area even when a reset instruction is issued. When a failure event occurs in the peripheral control device, a reset instruction is issued to the peripheral control device, and failure analysis information saved in a save area of the peripheral control device is read into a software area of the main storage device. and a failure processing means for instructing the peripheral control device to resume processing and for outputting a logging instruction for logging failure analysis information stored in the main storage device; A log file is provided, and the central processing unit transfers the failure analysis information stored in the software area to the hardware dedicated area and sends the failure analysis information to the service processor when a log instruction is output from the failure processing means. The service processor outputs a log instruction to the central processing unit, and upon output of the log instruction from the central processing unit, the service processor stores failure analysis information stored in the hardware dedicated area in the error log file. A failure analysis information collection method for peripheral control equipment.