JPS6266339A - Fault analysis system - Google Patents

Abstract

PURPOSE:To analyze the fault of a system by comparing data of a data gathering device which stores transmitted and received data between a terminal device of an on-line system and a center computer (CC) on the side of the terminal device for a period longer than an object period of fault analysis with data of the CC side. CONSTITUTION:Data which are transmitted forth and back between the CC 10 and all terminal devices 14 of the banking on-line system, etc., and include no error data are stored on an MT 20 for a period (e.g. one day) longer than an object period of fault analysis. Then, data which are transferred between the respective terminal devices 14 and CC 10 and include error data are stored on an MT 26 for said period. Then, the CC 10 runs a fault program to input and collate data of the MT 20 and MT 26 with each other, thereby knowing the frequency, kind, and cause of a fault and the frequency of retrial for the fault.

Description

[Detailed Description of the Invention] [Field of Application of Industry 1] This invention is used in an online system (in this specification, it is used in a broad sense including also an electric-r exchange/system; the same applies hereinafter). Regarding failure analysis methods.

[Prior art] A central computer of such an online system (
(including power exchange systems) are equipped with a fault recording function that records internal staff status information and human output data when a fault occurs, and the fault information collected by this function can be used to troubleshoot faults. It is now possible to analyze.

In addition, the center computer of the online system of a bank or securities company generally has a journal storage device that stores data exchanged with terminal devices over a relatively long period of time (for example, 1 [1, 1 week)]. (Access, magnetic tape storage device) is provided. The data stored in this journal storage device is only data that has been normally exchanged. If a retry operation is performed due to an error in the transmitted or received data due to a failure in the line between the terminal and the terminal, the error data is not saved in the journal storage device, and the error-free transmission or reception after the retry is successful. Only data is saved in journal storage.

[Problem to be solved] Now, banks and securities companies, for example, have to calculate the number of failures that occur in their online system over a relatively good period of time, and the time it takes to recover from failures. IJ) There is a desire to mix the number of lies, type of failure (j root cause), etc.

However, the fault information obtained by the fault recording function is limited to fault information within a very short period of time at 11 o'clock when the fault occurred, and cannot be used for fault analysis over a relatively long period of time as described in 1. You can't get it.

The data stored in other Tsuba journal storage devices is II.
Only the data that is constantly exchanged is collected, and information regarding failures such as communication failures is not collected.

As described above, in the past, information for failure analysis was collected over a relatively long period of time, making such failure analysis difficult.

[Object of the invention] This invention provides a relatively long
It is in the past to provide a failure analysis power formula for analyzing the failure in υj.

[First Step to Solve the Problem] In order to achieve this] I1, in this invention, a data collection device is provided on the terminal device side in the online/system, and the The data collection device stores all the exchange data between the terminal device and the center computer/computer during a period of Analyze online system failures by comparing

[Operation] As mentioned above, the journal storage device stores normal data exchanged between the center computer and the terminal, while the data collection device 6 on the terminal side stores data that is recovered by retrying. 1) All data sent and received through the line is saved, including 11 error data. And, all of the data show h'111 over a relatively long period of time.
Rukoyoshi comes.

Therefore, by the data obtained by the glossary storage device and the data acquisition device? ! Compare the lack of data! ((By combining it, you can enjoy it for a relatively long time,
It is possible to investigate the number of failures, the types or causes of failures (communication failures and other failures, failures that were recovered by IJI-Ly and failures that were not recovered), and the number of retries for failures.

[Example] Please refer to the drawing below! First, embodiments of the present invention will be described.

FIG. 1 is an installation configuration diagram for explaining an embodiment of the present invention. In this figure, 10 is, for example, a center computer of Bank Online 7 System, which communicates with a terminal 14 via a communication line 12. - Generally, a plurality of terminal devices 14 are connected to the center computer 10, but only one terminal device is shown small in the figure. 16 and 18 are modems (modems).

A magnetic tape storage device 20 is connected to the center computer 10 as a journal storage device. In this embodiment, 111 minutes of data exchanged with all the terminal devices 14 (as mentioned above, only 11 normal data and no error data are included) are stored in the magnetic tape storage device 20.

A data collection device 22 is provided on each terminal device 14 side. The data collection device 24 includes an adapter 24 and a magnetic tape storage device 26. The center computer 10 and each terminal device f\ via the four-wire communication line 12 1.
All data exchanged with each terminal device 14
and modem 18 , the data is captured by adapter 24 and stored on magnetic tape storage 26 .

In this embodiment, 1F1 worth of exchange data is collected and stored in the magnetic tape storage device 26.

In such a configuration, if this online system is operated, the center computer 10 and all terminal devices 14
The data exchanged with (not including error data) is 1
．． I1 minute is recorded on the magnetic tape storage device 20. In addition, all data (including error data) exchanged between each terminal device 14 and the center computer 10 lasts for 111 minutes.
The information is stored in the magnetic tape storage device 26 of the data collection device 22 provided on each terminal device 14 side.

After 111 minutes of data has been recorded in this way, a failure analysis program is run on the center computer/computer 10 (or other computer), and the magnetic tape storage device 2
If the data stored in 0 and the data stored in the magnetic tape storage device 26 of the data collection device 22 provided on each terminal device 14 side are manually compared and compared, it will be possible to determine the failure that occurred in this online system during 111. The number of times, the type or strength of the failure; the number of failures (communication failures and other failures, the failures that were recovered by retrying and the failures that were not recovered), the number of retries equal to failures, etc. are known.

Note that such a failure analysis program can be easily realized using general programming techniques, so a specific example will not be shown.

Further, in this embodiment, 111 minutes of data is collected and recorded, but the period may be arbitrarily determined as long as it is longer than the period targeted for failure analysis.

Furthermore, as the journal storage device and the storage device of the data collection device 6, storage devices other than magnetic tape storage devices may be used.

[Effects of the Invention] As explained in 1.1 above, the present invention provides a data collection device on the terminal device side in an online system, and collects information about the terminal device and the terminal device during a period of 1.- after the failure analysis target period. By storing all the data exchanged with the center computer in the data collection device and comparing the data stored in the journal storage device on the center computer side with the data stored in the data collection device, the online system can be improved. Since this is a method for analyzing failures, it is possible to analyze the number of failures over a relatively long period of time, the type or layer of failures (communication failures and other failures, failures that recovered with retries and failures that did not recover, etc.), the number of retries for failures, etc. I can do some research.

[Brief explanation of drawings]

FIG. 1 is a system configuration diagram for explaining one embodiment of the present invention. 10... Center computer, 12... Communication line,
14...Terminal device L20...Magnetic tape storage device (
journal storage device), 22...data collection device jIV
I", 24...adapter, 26...magnetic tape storage device. Holder applicant 11\γDennoneering Co., Ltd. + 1 agent Patent attorney 1 Kajiyama Kana Figure 1

Claims (1)

[Claims] (1) In an online system, a data collection device is provided on the terminal device side, and the data collection device collects all data exchanged between the terminal device and the center computer over a period longer than the period covered by failure analysis. and analyzing the failure of the online system by comparing data stored in a journal storage device on the center computer side with data stored in the data collection device. Analysis method.