JPH09258999A - File system check device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a file system check device for checking whether a necessary file required for the operation of a local system exists or not in a file system contained in a local system. SOLUTION: The device is provided with a read part 10 which is periodically started and reads necessary file designation information designating the necessary file from a configuration file B, a check part 20 checking whether the necessary file exists in a file system A based on necessary file designation information and outputting a check result, and a RAS notice part 40 generating RAS information obtained by adding notice level information showing the significance of notice information to notice information showing that the check result is received when the check result that the necessary file does not exist in the file system A is received and giving the notice of RAS information to the remote system of a maintenance base 2000 in a remote place against the local system.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system in which a machine operator is not resident or impossible in spite of non-stop continuous operation, and more particularly to a store system.

[0002]

2. Description of the Related Art Japanese Unexamined Patent Publication No. Hei 1-312645 discloses a file monitoring unit for reading a file update date and time of a user.
There is disclosed an unnecessary file deletion method that includes a mail output unit that transmits mail using a mail function before and after a file is deleted, and a file deletion unit that deletes an unnecessary file, and deletes a file that has not been used for a certain period.

Japanese Patent Laid-Open Publication No. Hei 1-305442 discloses a self-diagnosis function which has at least a main storage device and an external storage device and checks a file system by a file system check program existing in the external storage device. A data processing device comprising: a program operating status determining means for determining whether or not a user program is operating in the data processing device, wherein the user operating program runs in the data processing device by the program operating status determining device There is disclosed a data processing apparatus characterized in that when it is determined that the file system is not in the state, the file system check is executed by running the file system check program.

Further, Japanese Patent Application Laid-Open No. 3-95641 discloses that
An error logging file that collects and stores hardware error information in the host; and a monitoring analysis unit that analyzes the contents of the error logging file and detects a device that has a high possibility of a system failure. The information about the device with high possibility of system failure detected by the system is reported to the maintenance terminal via the line, and the content of the report is displayed on the screen to warn the user. It has been disclosed.

As described above, there is a system for periodically checking the file system and deleting or restoring unnecessary files, but this system is combined with a system for notifying the remote maintenance terminal via a line. The system does not exist.

[0006]

The following problems occur in continuous nonstop operation of the system.

[0007] 1) Do essential files exist? If the essential file does not exist, there is a possibility that a specific function cannot be used or has a fatal effect, resulting in a system down state.

[0008] 2) Leaving unnecessary files intact not only slows down processing, but also puts pressure on the disk capacity and may have a fatal effect on the system.

Further, when a failure that cannot be self-recovered occurs as a result of the periodical check, the fact is output to a screen or a printer, and it is impossible to deal with it in a system without a machine operator. is there. It is necessary to notify the remote maintenance base.

[0010] Therefore, an object of the present invention is to improve the reliability and maintainability of the system by self-monitoring / recovery of the file system and its files, and to report to a remote maintenance base, so that the system can be continuously operated without interruption for 24 hours. It is an object of the present invention to provide a file system check device that enables a system without a machine operator in operation.

[0011]

According to the present invention, it is used in combination with a file system included in a local system, and determines whether or not an essential file necessary for operation of the local system exists in the file system. In a file system check device to be checked, a reading unit that is periodically activated and has a function of reading essential file designation information that designates the essential file from a configuration file, and is connected to the file system and the reading unit, A checking unit having a function of checking whether or not the essential file exists in the file system based on the essential file designation information, and having a function of outputting a check result; and
When receiving the check result indicating that the essential file does not exist in the file system, generate RAS information in which report level information indicating the importance of the report information is added to report information indicating that, A RAS notification unit having a function of notifying the RAS information to a remote system at a maintenance base located at a remote location with respect to the local system is obtained.

Further according to the invention, the reading section is
It is also activated periodically and has a function of reading unnecessary file designation information for designating an unnecessary file for the operation of the local system from a configuration file, and the checking unit is configured to execute the file system based on the unnecessary file designation information. The file system check device further has a function of checking whether or not the unnecessary file exists and outputting a check result. The file system check device further has an execution unit connected to the file system and the check unit. The execution unit has a function of executing the deletion of the unnecessary file from the file system when receiving the check result indicating that the unnecessary file exists in the file system. Thus, a file system check device is obtained.

According to the present invention, when the RAS notifying unit receives the check result indicating that the unnecessary file exists in the file system, the RAS notifying unit outputs the separate notification information indicating that fact. File system check device, further having a function of generating another RAS information to which another report level information indicating the importance of the report information is added, and notifying the remote system of the other RAS information. Is obtained.

Further, according to the present invention, the RAS notification unit is also connected to the execution unit, and when the execution unit finishes executing the deletion of the unnecessary file from the file system, the RAS notification unit transmits the RAS notification unit. Other notification information indicating that the execution of the unnecessary file deletion has been completed is transmitted to another R.
A file system check device is also provided which has a function of generating the AS information and notifying the remote system of the other RAS information.

Further, according to the present invention, when the execution unit receives the check result indicating that the unnecessary file exists in the file system, the execution unit follows the command from the configuration file. There is obtained a file system check device having a function of executing the deletion of the unnecessary file from the.

Further, according to the present invention, there is provided a file system check device wherein the local system is a store system.

[0017]

By self-monitoring and self-restoring the file system and its files, it becomes unnecessary for the machine operator to monitor. As a result, the reliability of the system is improved, and a continuous operation without stoppage for 24 hours and a system without a machine operator are enabled.

The file system of each store system and the status of the file are sent to a remote maintenance base or the like by RAS.
By notifying, the notification information can be centrally managed, and preventive maintenance work by maintenance personnel is enabled. In the case of an emergency call requiring urgency, maintenance personnel can be promptly arranged and dealt with, and maintainability is improved.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings.

Referring to FIG. 1, a store system (local system) 1000 according to an embodiment of the present invention includes a file system check device 100, a clock daemon 200, and RAS (reliability, availability, service).
ceability) daemon 300, RAS diagnostic unit 400,
It has an online transmission unit 500, a file system A having a monitoring target file, a configuration file B, and an RAS information file C. A maintenance base (remote system) 2000 exists at a location remote from the store system (local system) 1000.

Further, the file system check device 1
00 is a reading unit 10 which is started by the clock daemon 200 and reads the contents set in the configuration file B, a check unit 20 which checks the file system A and the inconsistency of the file,
A command execution unit 30 for executing a command set in the configuration file B;
A RAS notification unit 40 that creates information and transfers the information to the RAS daemon 300.

The clock daemon 200 and the RAS daemon 300 are resident processes that are always resident in the store system 1000.

Here, the file system check device 10
The operation of 0 will be described.

The system check device 100 is periodically started by the clock daemon 200 at a time set in consideration of features / operations unique to the store system 1000.

The configuration file set in consideration of the features / operations unique to the store system 1000 is read by the reading unit 10. The checking unit 20 checks the actual file system A and its files according to the read contents.

If there is a specified command to be executed according to the check result of the check unit 20, the command execution unit 30 executes the specified command (such as file deletion) on the specified file. And self-recover.

The result of the command execution unit 30 and the result of the check by the check unit 20 are used to report the report information (message) that needs to be reported to the report level information (PANIC, FAT
AL, ERROR, WARNING, INFO), and RAS notification as RAS information. The RAS information in a state where the report level information is added to the report information (message) is sent to the RAS daemon 300.

Next, the operation of the store system 1000 will be described.

In FIG. 1, it is assumed that the file system check device 100 is started by the clock daemon 200 and notifies the daemon 300 of the RAS information as described above. In this case, the RAS daemon 300
The RAS information file C is created from the AS information, and the RAS diagnosis unit 400 is started. The RAS diagnosis unit 400 causes the online transmission unit 500 to RAS notify the machine at the maintenance site 2000 of the RAS information of the RAS information file C online.

Here, the file system check device 1
00 is divided into levels according to its importance and the weight of the check processing, and the check frequency can be changed according to the level.

Referring to FIG. 2, for example, in the case of a failure that would be fatal if not found, if it is set as level 1, the check is performed once a minute.

Referring to FIG. 1 and FIG. 2, by specifying the level,
The file system check device 100 periodically started by the clock daemon 200 reads the reading unit 1
The command is read from the configuration file B at 0. According to the read content, the check unit 20
The following check items are checked for the file of the file system A.

<< Check Items >> 1) Existence / Size / Permission of Essential File Whether the essential file specified in the configuration file B exists in the file system A. If the essential file exists in the file system A, is the size of the essential file of the file system A or the total size not exceeding the maximum value specified in the configuration file B? Whether the required file permissions of file system A are the same as those specified.

2) Non-Existence of Unnecessary File Whether the file name of the unnecessary file (core or the like) specified in the configuration file B exists in the file system A.

3) Monitoring of free disk space Whether the free space and the number of free inodes of the specified file system A are lower than the specified threshold value.

4) Increasing directory For a specified directory of the file system A in which a file having a property of increasing size such as a log file exists, the rate of increase under the directory is as follows:
Check if the specified upper limit is not exceeded.

5) Detecting files that have not been accessed for a long period of time Check if there are any files that have not been accessed for a certain period of time for files under the specified directory of the file system A.

According to the check result of the check unit 20, if there is a command to be executed in the configuration file B, the command execution unit 30
Executes a command (such as deleting a file) on the specified file. When it is necessary to notify, the notification level (PAN) specified by the RAS notification unit 40 is used.
IC, FATAL, ERROR, WARNING, IN
FO), an RAS notification is made.

The embodiments of the present invention are listed below.

(1) A file system check device characterized in that the file system and its files are periodically monitored.

(2) A file system check apparatus wherein, if an inconsistency is found by the function described in (1) above, self-recovery is performed as much as possible.

(3) When self-recovery is performed by the function described in (2), or when a failure that cannot be recovered by the function described in (1) is detected, a remote maintenance base or the like is connected via a line. A file system check device for notifying the user of a RAS notification.

(4) For each check content, information such as a target file / file system, a threshold value, and a check frequency (level) can be specified by a configuration file, and each can be customized. File system check device.

[0044]

According to the first effect of the present invention, by checking periodically, a file system and its file inconsistency can be detected before a catastrophic failure occurs, and the file system can be automatically restored. Thereby, a normal state of the system can be maintained.

The second effect of the present invention is that the frequency of the check can be customized according to the importance of the check processing, the level of the load, and the like, by classifying the check contents into levels. Thus, the system load can be adjusted according to the characteristics of each system.

The third effect of the present invention is that the RAS notification of the status of the file system of each store system distributed to the maintenance bases and the like enables the notification information to be centrally managed, thereby preventing the maintenance work. And enable emergency response.

[Brief description of drawings]

FIG. 1 is a block diagram of a store system according to an embodiment of the present invention.

FIG. 2 is a diagram showing levels that can be set in the file system check device of the store system of FIG. 1, importance / processing weight of each level, and check frequency.

[Explanation of symbols]

 A file system B configuration file C RAS information file 10 reading unit 20 checking unit 30 command execution unit 40 RAS notification unit 100 file system checking device 200 clock (cron) daemon 300 RAS daemon 400 RAS diagnosis unit 500 online transmission unit 1000 store system 2000 Maintenance base

Claims (6)

[Claims] 1. A file system check device used in combination with a file system included in a local system to check whether an essential file required for operation of the local system exists in the file system. A reading unit having a function of reading essential file designation information for designating the essential file from a configuration file, connected to the file system and the reading unit,
A checking unit having a function of checking whether the essential file exists in the file system based on the essential file designation information and outputting a check result, and being connected to the checking unit, When receiving the check result indicating that the file does not exist, RAS information is generated by adding report level information indicating the importance of the report information to report information indicating that, and the RAS information is A RAS notification unit having a function of notifying a remote system at a remote maintenance base with respect to the local system. 2. The reading unit, which is periodically activated, has a function of reading unnecessary file designation information for designating an unnecessary file for operation of the local system from a configuration file. The file system checking device further has a function of checking whether or not the unnecessary file exists in the file system based on the unnecessary file designation information, and outputting a check result. And an execution unit connected to the file system, wherein the execution unit deletes the unnecessary file from the file system when receiving the check result indicating that the unnecessary file exists in the file system. 2. The file system chain according to claim 1, further comprising a function of executing Click device. 3. When the RAS notification unit receives the check result indicating that the unnecessary file exists in the file system, the RAS notification unit adds another report information indicating that fact to the importance of the other report information. 3. The file system check according to claim 2, further comprising a function of generating another RAS information to which another report level information indicating a degree is added, and notifying the other RAS information to the remote system. apparatus. 4. The RAS notifying unit is also connected to the executing unit, and when the executing unit finishes executing the deletion of the unnecessary file from the file system, deletes the unnecessary file from the file system. 4. Another function is also provided, which has a function of generating other notification information indicating that the execution of the above is finished as other RAS information and notifying the remote system of the other RAS information.
The file system check device according to 1. 5. When the execution unit receives the check result indicating that the unnecessary file exists in the file system, the execution unit receives the unnecessary file from the file system according to a command from the configuration file. The file system check device according to any one of claims 2 to 4, wherein the file system check device has a function of deleting a file. 6. The file system check device according to claim 1, wherein the local system is a store system.