JP2006268281A - Abnormality detection system in disconnecting power source input - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that since a message to be outputted by an OS is monitored in a conventional abnormality monitor system, it is impossible for the OS whose message output is small, or whose message output is not available to monitor the message (1), and that since it is necessary to start a prescribed program for monitor, and to secure an OS operating status for making it possible for the OS to communicate with the program for monitor, and particularly since a monitor program ends according to the start of the stop processing of the OS, it is impossible to detect any failure during stop processing (2). <P>SOLUTION: In this automatic operation control system for realizing the power source supply of each computer device 1 according to a schedule, when any abnormality is generated in the start and stop processing of the compute device whose power source is controlled, the abnormality is detected by a monitoring part, and a staff is notified of the result. Thus, it is possible to eliminate any influence on a scheduled system operation. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an abnormality monitoring process for a computer, and in particular, compares the access time to the address of the main memory determined in the startup and shutdown process of the computer with the previous access time to determine whether there is an abnormality. The present invention relates to an abnormality detection method at the time of power supply input detection to be detected.

In a conventional monitoring system for a computer failure or the like, an abnormality is detected by starting a monitoring program when the computer is started up and comparing the startup time with a reference time. For example, Patent Document 1 monitors messages output at the time of OS startup and shutdown, examines the difference from the time when the same message was output last time, and if there is a difference, determines that it is abnormal and notifies the maintenance center. The method is disclosed
JP 2000-330831 A

  However, since the prior art in Patent Document 1 monitors messages output by the OS, it cannot be applied to an OS that outputs few messages or an OS that does not output messages. In addition, a specific monitoring program must be started and the OS must be in an operating state in order for the OS to communicate with the monitoring program. In particular, at the time of shutdown, the monitoring program ends with the start of OS shutdown processing. Therefore, the failure during the shutdown process could not be detected.

  The present invention, in a computer system that performs automatic operation, memorizes the time from the start of startup and shutdown processing when accessing a memory address required for processing during startup and shutdown of the computer system, The time stored at the time of system startup and shutdown is compared, and if there is a difference, the difference information is saved in a file, and it is determined that there is a failure and is automatically notified to the maintenance center. As a result, it is possible to monitor the startup and shutdown status of the computer system in stages for all the OSs, and in particular, it is possible to monitor the shutdown until immediately before the OS shutdown ends. An abnormality detection method at the time of power input disconnection is provided.

  According to the present invention, the abnormality detection method at the time of power-off is a memory that stores the access time to a preset address in the main memory of the computer together with the address in the nonvolatile memory when the computer is started up or shut down. Means, reading means for reading out information stored in the previous start-up / down process at the end of the start-up / down process from the non-volatile memory, current information stored in the storage means, and reading out by the read-out means Comparing means for taking a time difference having the same address for the previous information and comparing the difference with a preset threshold value, and notifying means for notifying the difference to the maintenance center when the difference exceeds the threshold value. It is characterized by providing.

  According to the present invention, in an automatic operation control system that realizes power control of each computer device according to a schedule, an abnormality during the startup and shutdown processing of a computer device that has been difficult to monitor with a conventional monitoring program is detected. In addition, it is possible to detect an abnormality even in an OS that does not have a message to be output at the time of start-up and shut-down, and a situation in which a planned system operation is hindered can be avoided.

  Next, the best mode for carrying out the present invention will be described in detail with reference to the drawings.

  FIG. 1 shows an embodiment of an automatic driving control system using the present invention. In the figure, a computer apparatus 1 includes an EPU 11 that performs arithmetic processing, a main memory 12, and a monitoring unit 13 that monitors start of OS (operating system) startup and shutdown processing and memory access from the EPU. And a magnetic disk device 10 and an SVP 2 that is connected to the computer 1 with a cable and notifies the maintenance center 3 of an abnormality.

  The monitoring unit 13 stores one or more predetermined addresses to be accessed in the startup and shutdown processes, and is accessed from the memory access monitoring unit 131 that monitors access to these addresses, and the memory access monitoring unit 131. When the notification of the address is received, the time at that time is taken out from the timing mechanism of the OS, the memory address storage means 132 for storing the notified address and time in the time history file 134 of the magnetic disk device 10, and start-up / down processing Is completed, the memory address comparing means 133 that reads the current and previous information accessed from the time history file 134 and compares the time for the same address, and the previous address, If there is a difference, the difference information is stored in the time history file 1 Stores 4, the difference information notification means 135 for notifying the difference information to the SVP2, consists. The time history file 134 can store the address and time information at the time of starting and falling a plurality of times, and when it is used to the end of the file, it is stored from the beginning of the file.

  The memory access monitoring unit 131 includes an EPU firmware (FW) function, and monitors an address accessed by the OS when the EPUFW is started up or shut down.

  Next, the operation of the best mode for carrying out the present invention will be described with reference to the drawings.

  When the OS startup or shutdown process is started, the memory access monitoring means 131 is accessed by the EPUFW in the EPU 11 when the OS startup or shutdown process is executed. Start monitoring access to memory addresses.

  When the memory access monitoring unit 131 detects the start of startup of the computer apparatus 1 and detects that a predetermined address has been accessed, the memory address storage unit 132 uses the memory access monitoring unit 131 to detect the computer apparatus 1. Receives an instruction to record the address of the memory at the start-up.

  The memory address storage unit 132 stores the address notified from the memory access monitoring unit 132 by the time history file 134 together with the time information before the start-up is completed.

  In the same manner, when the memory access monitoring unit 131 detects that the computer device 1 has started to fall, the memory address storage unit 132 also stores the address accessed by the memory access monitoring unit 131 until the end of the fall. Store with time information.

  When the startup and shutdown processing is completed, the memory address comparing means 133 reads the memory address and time information accessed at the previous startup and shutdown from the time history file 134, and the memory accessed at the current startup and shutdown. Retrieve address and time information. At the time of start-up processing, information at the time of the previous start-up processing is used, and at the time of the start-up processing, information at the time of the previous start-up processing is used.

  The memory address comparison unit 133 compares time information for the same address, and stores the difference in the time history file 134 when there is a difference equal to or greater than a predetermined threshold.

  If there is difference information equal to or greater than the threshold stored in the time history file 134, the difference information reporting unit 135 notifies the SVP 2 of this difference information as failure or failure sign information. The SVP 2 notifies this to the maintenance center 3.

  The present invention can be applied to maintenance work that detects an abnormality at the time of startup or shutdown of a computer that operates according to a schedule.

It is a block diagram explaining the structure of the Example of this invention. It is explanatory drawing showing operation | movement of the Example of this invention.

Explanation of symbols

1 Computer equipment 11 EPU
DESCRIPTION OF SYMBOLS 12 Memory 13 Monitoring part 131 Memory access monitoring means 132 Memory address memory | storage means 133 Memory address comparison means 134 Time history file 135 Difference information reporting means 10 Magnetic disk apparatus 2 SVP
3 Maintenance Center

Claims (1)

When starting up or shutting down the computer, storage means for storing the access time to a preset address in the main memory of the computer together with the address in the non-volatile memory; Read means for reading out the information stored in the start-up / down process from the nonvolatile memory, the current information stored by the storage means, and the difference between the times having the same address for the previous information read by the read means And a comparison means for comparing the difference with a preset threshold value, and a notification means for notifying the difference to the maintenance center when the difference exceeds the threshold value. method.

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