JP5248123B2 - File management system, file management server, and file management program - Google Patents

Description

  The present invention relates to a management system for managing files of each server in a system including a plurality of servers.

  Information processing systems have a wide range of applications. For example, even an information processing system in one company tends to be very large. That is, a system is configured by a very large number of information processing apparatuses (typically “servers”), and the file configuration of each server tends to increase in volume and complexity. In order to efficiently operate (maintain and manage) such an information processing system, a management system (hereinafter simply referred to as a file management system) for managing the files of each server is used. Conventional techniques related to the management system are disclosed in Patent Document 1, Patent Document 2, and the like.

  The prior art disclosed in Patent Document 1 is based on a one-to-one comparison with a file of another server having the same configuration in the case where a failure occurs in the server. Or, it relates to detecting a difference portion and synchronizing a file having a difference.

  The prior art disclosed in Patent Document 2 manually groups files of the same type among a plurality of servers, detects a common part or a difference part among files in the group, and synchronizes files having a difference. It is about doing.

JP 2005-266916 A JP 2007-200222 A

  In the information processing system as described above, the processing is basically distributed by a plurality of servers having the same function from the viewpoint of improving reliability, the viewpoint based on regional factors, and the viewpoint of improving processing capability. Is widely adopted. Further, there are cases where a business function has a common function (for example, a communication function) that should be provided as a server even between different servers. In such an information processing system, there are naturally files that should be the same or different between a plurality of servers.

  In the “file management system” that manages these files, the status of the files on each server in relation to the entire system (for example, between all servers with common functions) What is the status of the entire system when focusing on the files (whether the corresponding file exists on which server, which server does not exist, and whether there is a difference between the servers) In addition, it is desirable to be able to efficiently grasp what kind of difference there is. However, there has been no file management system that can efficiently manage files based on such a viewpoint of “comparison with the entire system”.

  In view of the above points, the present invention is a management system for managing files of each server in a system including a plurality of servers, and in relation to the entire system (for example, between all servers having a common function), It is an object of the present invention to provide a file management system that can efficiently compare server file statuses.

  The file management system according to claim 1, wherein a plurality of servers are connected via a network, and the file management server includes a file management server that is connected to the network and manages files held by the plurality of servers. In the system, the file management server manages a file for each server by holding a file configuration similar to the file held by each server in the library area, and the file management server manages the file from the library area. Acquires the file identification information of the files possessed by each server, generates a server-specific file identification information list in which the acquired file identification information is associated with each server, and generates a server-specific file identification information list corresponding to each server Based on the file identification information of each server obtained from And generating a logical sum list of file identification information.

  According to the above configuration, there is a file management server in the system that holds the same file configuration (a copy of each server resource) in the library area as the files that each server holds. The file identification information of the files possessed by the server is acquired, and a “server-specific file identification information list” is generated for each server. Furthermore, based on each “server-specific file identification information list”, a “logical sum list” that is a list of overall file identification information of the system is generated. “File identification information” is information for identifying a file, and the simplest example is a file name. The management target of the file management server may be all the servers existing in the system, but may be a part thereof. The target for generating the “server-specific file identification information list” or “logical sum list” may be all of the management targets of the file management server, or a part thereof.

  The file management system according to claim 2 is the file management system according to claim 1, wherein the file management server acquires file identification information from a logical sum list of the file identification information, and a file corresponding to the file identification information is obtained. It is determined whether there is a server that does not have, and if it is determined that there is a server that does not have a corresponding file, information indicating that there is a server that does not have a corresponding file exists in each file identification information. It is characterized by being held in association.

  According to the above configuration, information indicating that there is a server that does not have a file corresponding to the file identification information is associated with each file identification information.

  A file management system according to claim 3 is the file management system according to claim 1 or 2, wherein file attribute information is managed by a file system which is one of functions of an operating system, and the plurality of servers are A priority order is defined for the server, the file management server having the priority order information obtains file identification information from a logical sum list of the file identification information, and a server having a file corresponding thereto, Each server having the file corresponding to the file identification information by obtaining the file attribute information of the file corresponding to the file identification information of the server having the highest priority based on the priority information and using this as the comparison source file attribute information File attribute information is obtained and compared with the comparison source file attribute information. To determine the presence or absence of difference, and performs a process for holding in association with the discrimination result to the respective file identification information.

  According to the above configuration, each file identification information is associated with information indicating whether or not there is a server having different file attribute information with respect to the comparison source file attribute information. Here, the “comparison source file attribute information” is file attribute information of a file corresponding to the file identification information of the server having the file corresponding to the file identification information and having the highest priority. The “priority order” may be determined and held in advance as a system, or may be defined by the user when a processing request is received from the user, for example. Further, the information is not limited to information having independent information as priority information, and for example, the server processing order may be determined ("processing order" corresponds to the priority order).

  A file management system according to a fourth aspect is the file management system according to any one of the first to third aspects, wherein a priority order is defined for the plurality of servers, and the priority order information The file management server comprising the file identification information is obtained from the logical sum list of the file identification information, and a server having a file corresponding to the file identification information and having the highest priority based on the priority information is determined. The file corresponding to the file identification information of the determined server is obtained from the library area and used as a comparison source file, and the corresponding file of each server having the file corresponding to the file identification information is retrieved from the library area. By acquiring and comparing with the comparison source file, each server file is compared with the comparison source file. By repeating the process of determining whether or not each file is identical, information about whether or not each file of each server is the same as the comparison source file is collected, and the information is associated with each file identification information. It is characterized by holding.

  According to the above configuration, each file identification information is associated with information indicating whether there is a server having a different file from the comparison source file. The “comparison source file” is a file corresponding to the file identification information of the server having the highest priority, as described above.

  A file management system according to a fifth aspect is the file management system according to any one of the first to fourth aspects, wherein priorities are defined for the plurality of servers, and the priority information By acquiring the file identification information from the logical sum list of the file identification information by calculating each file content specifying information based on each file in the library area and associating it with each file. The file content specifying information of the file corresponding to the file identification information is acquired in order from the server having the file corresponding to this and having the highest priority based on the priority information, and the acquired file New if the same content identification information is not found in the file content identification information acquired so far If the same file content identification information is assigned, the same file content identification information is assigned to the file, and the process is held in association with each file identification information. It is repeated for each server having a file corresponding to the file identification information, and the repetition process is further performed for each file identification information in the logical sum list.

  According to the above configuration, file content specifying information corresponding to the file identification information is acquired in order from the server with the highest priority among servers having the same file identification information, and the file content specifying information is new. If the file identification information is the same and the file content identification information is different, the file content identification information is added in order according to the priority of the server. . The “file content specifying information” is information for specifying the contents of the file. For example, a calculation result (numerical information) obtained by performing a specific calculation process on the data string that is the contents of the file. ) Etc. “File content identification information” is information for identifying the file content identification information.

  A file management system according to claim 6 is the file management system according to any one of claims 2 to 5, wherein the file identification information does not have a corresponding file by the processing of claim 2. Is associated with information indicating that the file attribute information is present, or is associated with information indicating that there is a difference in file attribute information by the process of claim 3, or according to the process of claim 4. When information indicating that it is not the same as the comparison source file is associated, or when there is not one file content identification information associated by the processing of claim 5 Is characterized in that the file identification information is associated with information indicating that there is a difference.

  According to the above configuration, when any difference is recognized in the comparison between files having the same file identification information by the processing of any one of claims 2 to 5, the file identification information has “difference”. Is associated.

  The file management system according to claim 7 is the file management system according to claim 6, wherein the output device provided in the file management server or the output device provided in a terminal device connected to the file management server, The file identification information and each piece of information corresponding to the file identification information are output in a list display format.

  According to the above configuration, the file identification information and each corresponding information (information indicating that there was (or did not have) some difference in comparison between files having the same file identification information) are displayed in a list display format. Is output. Note that “the information” in “output the corresponding information in a list display format” means that the information held in the system is displayed as it is by the processing of each claim. It is not limited to the above, and naturally includes information that is processed and output so that it can be easily understood by a person.

  A file management system according to an eighth aspect is the file management system according to any one of the first to seventh aspects, wherein a priority order is defined for the plurality of servers, and the priority order information By calculating the file content specifying information based on each file in the library area and associating it with each file by the file management server comprising, for the file management server comprising the priority information, When there is a file detail comparison request specifying the file identification information, the file identification information is added to the file identification information in order from the server having the highest priority based on the priority information among the servers having the file corresponding to the file identification information. The file content specifying information of the corresponding file is acquired, and the acquired file content specifying information and If there is no file content identification information obtained so far, new file content identification information is given. If there is the same, the same file content identification information is given. The processing result is output in a list display format in which the server name and the file content identification information are associated with each other.

  According to the above configuration, when there is a file detail comparison request specifying the file identification information, the server having the same file identification information and different file content identification information between the servers having the file identification information. The file content identification information is assigned in order according to the priorities of the files, and the results are output in a list display format.

  A file management system according to a ninth aspect is the file management system according to any one of the fifth to eighth aspects, wherein the file identification information is the same and the file content specifying information is different. In some cases, the file is obtained from the library area, and if the file is a text file, the full text comparison is performed to determine the specific differences between the two files. By applying a text conversion command to the file and comparing the whole text, a specific difference between the two files is determined, and the difference is output as a result.

  According to the above configuration, for the files having the same file identification information but different file content specifying information, the full text comparison is applied when the file is a text file, and the text conversion command is applied when the file is a binary file. A full-text comparison is performed above.

  A file management system according to a tenth aspect is the file management system according to any one of the first to ninth aspects, wherein the file management server receives files or files from each server via the network as necessary. By acquiring file identification information or file attribute information and calculating the file content specifying information from the acquired file as necessary, or each file content specifying information based on each file in each server having each file By calculating, the file management server executes the processes by acquiring a file or file identification information, file content specifying information, or file attribute information from each server via the network as necessary. It is characterized by that.

  According to the above configuration, for example, when the file management server does not include the library area, the file, file identification information, and file attribute information of each server cannot be acquired from the file management server (or Even if the file management server includes the library area, it is intended to acquire various information from each server via the network under the intention of acquiring actual files and the like of the server that is actually operating. The file content specifying information is acquired from each server if it is held by each server, and the file is acquired from each server if not provided, and is calculated based on this.

  The file management server according to claim 11 is a file management server for managing a file held by each of the plurality of servers in a system formed by connecting the plurality of servers via a network, And an input unit, an output unit, and a storage unit, and the control unit includes a library area in which the same file configuration as the files held by each of the servers is stored in the storage unit. Then, the file identification information of the file of each server is acquired from the library area, and a server-specific file identification information list in which the acquired file identification information is associated with each server is generated and stored in the storage unit. Each file identification information of each server obtained from the server-specific file identification information list corresponding to each server Based generates a logical sum list of file identification information and storing, in the storage unit.

  A file management server according to a twelfth aspect is the file management server according to the eleventh aspect, wherein the control unit obtains file identification information from a logical sum list of the file identification information and has a file corresponding to the file identification information. If it is determined that there is a server that does not have a corresponding file, information indicating that there is a server that does not have a corresponding file corresponds to the file identification information. In addition, the data is stored in the storage unit.

  A file management server according to claim 13 is the file management server according to claim 11 or 12, wherein file attribute information is managed by a file system which is one of functions of an operating system, By providing priority information for determining priority for the server, the control unit obtains file identification information from the logical sum list of the file identification information, and a server having a file corresponding thereto, the priority information File attribute information of a file corresponding to the file identification information of the server having the highest priority based on the file attribute information as comparison source file attribute information, and the file attribute of each server having a file corresponding to the file identification information Information is obtained and compared with the comparison source file attribute information. To determine the presence or absence of differences, and performs a process for holding the determination result in association with the respective file identification information in the storage unit.

  A file management server according to claim 14 is the file management server according to any one of claims 11 to 13, wherein the control is provided by including priority order information for determining a priority order for the plurality of servers. The file identification information is obtained from the logical sum list of the file identification information, and the server having the corresponding file and having the highest priority based on the priority information is determined. A file corresponding to the file identification information of the server is acquired from the library area and used as a comparison source file, and a corresponding file of each server having a file corresponding to the file identification information is acquired from the library area and compared. Is the file on each server the same as the comparison source file by comparing with the original file? By repeating the process of determining whether or not each file of each server is the same as the comparison source file, information is collected and stored in the storage unit in association with the file identification information. It is characterized by doing.

  A file management server according to a fifteenth aspect is the file management server according to any one of the eleventh to fourteenth aspects, comprising priority order information for determining priority orders for the plurality of servers, By calculating each file content specifying information based on each file and associating it with each file, the control unit obtains the file identification information from the logical sum list of the file identification information, and the corresponding file The file content specifying information of the file corresponding to the file identification information is acquired in order from the server having the highest priority based on the priority information, and the same as the acquired file content specifying information New file content identification identification if no file content identification information has been acquired The same file identification information is assigned to the same file identification information, and the same file identification information is assigned to the same file identification information. It repeats with respect to each server which has a file to perform, and the said repeating process is further performed with respect to each file identification information of the said logical sum list.

  A file management server according to claim 16 is the file management server according to any one of claims 12 to 15, wherein the file identification information does not have a corresponding file by the processing of claim 12. Is associated with information indicating that the file attribute information is present, or is associated with information indicating that there is a difference in the file attribute information by the process of claim 13, or according to the process of claim 14. When information indicating that it is not the same as the comparison source file is associated, or when there is not one file content identification information associated by the processing of claim 15 Is stored in the storage unit in association with information indicating that there is a difference in the file identification information.

  The file management server according to claim 17 is the file management server according to claim 16, wherein the file identification information and the file identification information are included in the output unit or an output device provided in a terminal device connected to the file management server. Each information corresponding to this is output in a list display format.

  The file management server according to claim 18 is the file management server according to any one of claims 11 to 17, comprising priority order information for determining priority orders for the plurality of servers, and By calculating each file content specific information based on each file and associating it with each file, when there is a file detail comparison request specifying the file identification information to the file management server, The control unit obtains the file content specifying information of the file corresponding to the file identification information in order from the server having the highest priority based on the priority information among the servers having the file corresponding to the file identification information. The file content identification information that has been acquired so far is the same as the acquired file content identification information. If there is not, the new file content identification information is assigned, and if there is an identical file, the process of assigning the same file content identification information is repeated, and the server name and the file content are repeated. The processing result is output to an output device included in a terminal device connected to the output unit or the file management server in a list display format associated with specific identification information.

  A file management server according to a nineteenth aspect is the file management server according to any one of the fifteenth to eighteenth aspects, wherein the file identification information is the same and the file content specifying information is different. In some cases, the control unit obtains the file from the library area, and when the file is a text file, a full-text comparison is performed to determine a specific difference between the two files. If this is the case, apply the text conversion command to the file and compare the full text to determine the specific differences between the two files. As a result, the difference is connected to the output unit or the file management server. Output to an output device included in the terminal device.

  A file management server according to claim 20 is the file management server according to any one of claims 11 to 19, wherein the file management server is connected to the plurality of servers via the network. By providing a communication unit for transmitting and receiving information via the network, a file or file identification information or file attribute information is obtained from each server via the network as necessary, and obtained as necessary. By calculating the file content specifying information from the file, or by calculating each file content specifying information based on each file in each server having each file, and from each server via the network as necessary File or file identification information or file content identification information or file By acquiring the Le attribute information, and executes the respective processes.

  23. A file management program according to claim 21, wherein the file management server is a file management server that performs management related to files respectively held by the plurality of servers in a system formed by connecting the plurality of servers via a network. A library that includes a library area in which a file configuration similar to the files held in each of the servers is held in the storage unit, and an input unit, an output unit, and a storage unit. Acquiring file identification information of a file included in each server from an area, generating a server-specific file identification information list in which each acquired file identification information and each server are associated, and storing the list in the storage unit; Each file identification of each server obtained from the server-specific file identification information list corresponding to each server. To generate a logical sum list of file identification information based on the information, characterized in that and a step of storing in the storage unit.

  A file management program according to a twenty-second aspect is the file management program according to the twenty-first aspect, wherein the file management server acquires file identification information from a logical sum list of the file identification information and stores a file corresponding thereto. Corresponding to each file identification information is a step of determining whether or not there is a server that does not have, and information that there is a server that does not have a corresponding file when it is determined that there is a server that does not have a corresponding file And the step of holding in the storage unit is executed.

  A file management program according to a twenty-third aspect is the file management program according to the twenty-first or twenty-second aspect, wherein the file management server manages file attribute information by a file system which is one of functions of an operating system. And providing the file management server with file priority information from the logical sum list of the file identification information by providing priority order information for determining the priority order for the plurality of servers, and a file corresponding thereto. Obtaining the file attribute information of a file corresponding to the file identification information of the server having the highest priority based on the priority information and using the file attribute information as comparison source file attribute information; and the file identification For each server that has a file that corresponds to the information Executing file identification information and comparing with the comparison source file attribute information to determine whether there is a difference, and storing the determination result in association with each file identification information in the storage unit It is characterized by making it.

  A file management program according to a twenty-fourth aspect is the file management program according to any one of the twenty-first to twenty-third aspects, wherein the file management server stores priority order information for determining a priority order for the plurality of servers. By providing the file management server with the step of acquiring the file identification information from the logical sum list of the file identification information, and a server having a file corresponding thereto, the highest priority based on the priority information A step of determining a server, a step of acquiring a file corresponding to the file identification information of the determined server from the library area and using the file as a comparison source file, and a file having a file corresponding to the file identification information Get the file on the server from the library area and compare A step of comparing with the file, a step of collecting information on whether each file of each server is the same as the comparison source file by repeating the step, and associating the information with the file identification information And a step of holding in the storage unit.

  A file management program according to claim 25 is the file management program according to any one of claims 21 to 24, wherein the file management server stores priority information for determining priority for the plurality of servers. Providing the file management server with each file content specifying information based on each file in the library area, storing the file content identification information in association with each file, and storing the result in the storage unit; A step of obtaining file identification information from a list, and the file content specifying information of a file corresponding to the file identification information in order from a server having a file corresponding thereto and having the highest priority based on the priority information. And the same step as the acquired file content identification information The step of determining whether or not the file content identification information obtained so far is included, and if this is not present, new file content identification information is assigned. Each having a file corresponding to the same file identification information, the step of assigning the same file content specifying identification information and holding the corresponding file identification information in association with each other, and the processing to be performed in order based on the priority order A step of repeating the server, and a step of performing the repetition process on each piece of file identification information of the logical sum list.

  A file management program according to a twenty-sixth aspect is the file management program according to any one of the twenty-second to twenty-fifth aspects, wherein a server that does not have a file corresponding to the file identification information by the processing of the twenty-second aspect. A step of determining whether or not information indicating the presence exists, or whether or not the file identification information is associated with information indicating that there is a difference in file attribute information by the processing of claim 23 Determining whether or not the file identification information is associated with information indicating that the file identification information is not the same as the comparison source file according to the processing of claim 24, or the file identification information A step of determining whether or not there is one file content identification information associated by the processing of claim 25. When it is determined that any one of the information is associated with the file identification information or the file content identification information is one, the difference is included in the file identification information. The step of associating information indicating that the information exists and holding the information in the storage unit is executed.

  A file management program according to a twenty-seventh aspect is the file management program according to the twenty-sixth aspect, wherein the file identification information and the corresponding file management information are provided in an output device provided in the output unit or a terminal device connected to the file management server. The step of outputting each information in a list display format is executed.

  A file management program according to a twenty-eighth aspect is the file management program according to any one of the twenty-first to twenty-seventh aspects, in which the file management server includes priority information for determining a priority order for the plurality of servers. Providing the file management server with each file content specifying information based on each file in the library area and associating it with each file and holding it in the storage unit; When there is a file detail comparison request specifying the file identification information, the file identification information is added to the file identification information in order from the server having the highest priority based on the priority information among the servers having the file corresponding to the file identification information. Obtaining the file content identification information of the corresponding file; and If there is no file content identification information that is the same as the obtained file content identification information, new file content identification information is assigned. A step of assigning the same file content identification information, a step of repeating the processing to be performed in order based on the priority order for each server having a file corresponding to the same file identification information, a server name and the file content identification And a step of outputting the processing result to an output device provided in a terminal device connected to the output unit or the file management server in a list display format associated with identification information.

  A file management program according to a twenty-ninth aspect is the file management program according to any one of the twenty-fifth to twenty-eighth aspects, wherein the file identification information is the same and the file content specifying information is different. A step of determining whether the file exists, a step of acquiring the file from the library area when it is present, a step of determining whether the file is a text file or a binary file, and a text file. If the file is a binary file, apply a text command to the file and then compare the two texts. A step of discriminating a specific difference portion and the output portion as a result of the difference portion. Characterized in that to execute the steps of outputting to an output device to which the terminal apparatus connected to the file management server comprises, a is.

  A file management program according to claim 30 is the file management program according to any one of claims 21 to 29, wherein the file management server is connected to the plurality of servers via the network. Obtaining a file or file identification information or file attribute information from each server via the network as necessary by providing a communication unit for transmitting and receiving information via the network, and if necessary Calculating the file content specifying information from the acquired file, or calculating each file content specifying information based on each file in each server having each file, and if necessary File or file identification from each server via the network By executing the distribution or obtaining the file content specific information or file attribute information, characterized in that to execute the respective processing.

  According to the file management system of the first aspect of the present invention, a “server-specific file identification information list” is generated for each server, and the entire system is based on the “server-specific file identification information list”. A “logical sum list” that is a list of file identification information is generated. Accordingly, it is possible to efficiently compare the file status of each server in relation to the entire system (for example, between all servers having the same function).

  According to the file management system of claim 2 of the present invention, information indicating that there is a server that does not have a file corresponding to the file identification information is associated with each file identification information. Therefore, for example, it is possible to immediately determine whether or not all servers have the file A between servers having the same function.

  According to the file management system of the third aspect of the present invention, each file identification information is associated with information indicating whether or not there is a server having file attribute information different from the comparison source file attribute information. Therefore, for example, whether or not there is a difference in the file attribute information of A of each server having a file called A (for example, a difference in update date, a difference in file size, a difference in authority, etc. ) Can be immediately determined.

  According to the file management system of claim 4 of the present invention, each file identification information is associated with information indicating whether or not there is a server having a different file from the comparison source file. Therefore, for example, it is possible to immediately determine whether or not there is a difference in the A file of each server among a plurality of servers having the file A.

  According to the file management system of claim 5 of the present invention, when the file identification information is the same and the file content identification information is different between the servers having the same file identification information, the file contents are sequentially ordered according to the server priority. Specific identification information will be given. Therefore, for example, when the file content specifying information generated from the A file of each server is different among a plurality of servers having the file A, different file content specifying identification information is given to them. Thus, it is possible to immediately determine how much the file content specifying information is different, that is, how much the file name is A and the contents (data) are different. Become.

  According to the file management system of claim 6 of the present invention, when any difference is recognized in the comparison between the files having the same file identification information by the processing of any one of claims 2 to 5, the file “Information indicating that there is a difference” is associated with the identification information. Therefore, for example, it is possible to immediately determine whether there is any difference between the files of A of each server among a plurality of servers having a file of A.

  According to the file management system of claim 7 of the present invention, the file identification information and each corresponding information (indicating that there was (or did not have) some difference in comparison between files having the same file identification information). Information) is output in list display format. Therefore, for example, it is possible to immediately determine whether or not there is a difference in the file A of each server between a plurality of servers having a file A.

  Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. The following embodiment is one form when the present invention is embodied, and is not intended to limit the present invention within the scope thereof.

  FIG. 1 is a block diagram showing an outline of the configuration of the file management system of this embodiment, and FIG. 2 is a block diagram showing an outline of the configuration of a file management server provided in the file management system.

  The file management system is a system for managing resources (files) of various servers provided in the system (for example, an in-company system owned by a specific company). FIG. 1 shows an outline of an in-house system of a specific company. As shown in the figure, a head office center 10 and branch offices 120 are connected to each other via a network 20. In the branch office 120, various business servers 12 and 122 are provided, and PCs 15 and 125, which are terminal devices, are also provided. The head office center 10 further includes a test server 13 and a file management server 11. The test server 13 is provided for the purpose of maintenance management for the business servers 12 and 122 that are operating for actual business processing. For example, when the system is upgraded, the test server 13 is a test environment. It is a thing for mounting on the server 13 and performing a test, and after it is confirmed that there is no problem, it is mounted on the business server 12 or 122 which is the production environment. Therefore, the test server 13 is provided with substantially the same environment and resources as the corresponding business servers 12 and 122.

  The file management server 11 is a server for managing resources (files) possessed by the business servers 12 and 122, the test server 13, and the like, and as shown in FIG. 2, a control unit that executes various arithmetic processes and control processes. 111, a storage unit 112 that is a storage area, a communication unit 113 that transmits and receives information to and from the network (in-house LAN 16), an input unit 114 that is a user interface such as a keyboard and a mouse, and a user interface (such as a monitor). An output unit 115 and the like are provided.

  The storage unit 112 stores the same resource (copy) as the resource of each server (business server 12/122, test server 13, etc.). That is, the same file structure as that of each server is managed for each server in the library area 1121.

<File difference detection processing for the entire server>
3 to 7 are flowcharts showing an outline of the processing related to the present invention executed in the file management server 11. These processes detect files that are recognized as common in the entire server (business server 12, 122, test server 13, etc.), and there are some differences in the files that are recognized as common. This is a process for detecting whether there is any file and making it possible to discriminate what kind of file the server has as a whole and the file of each server. Each process is basically executed in the file management server 11 and acquires necessary information from the storage unit 112 (in some cases, information obtained via the input unit 114 or the communication unit 113 may be obtained). This is performed by performing calculation processing in the control unit 111 and storing the calculation result in the storage unit 112 (in some cases, via the output unit 114 or the communication unit 113).

  The process may be executed for all servers (all server resources in the library area) provided in the system, but servers having the same file structure (for example, distributed processing). For the same function server) (mainly use effect is high). Therefore, in order to simplify the explanation, here, as shown in FIG. 8, the servers 1 to 4 having basically the same and simple file structure (the business servers 12 and 122 and the test server 13). The processing for “applicable” will be described below as an example.

  FIG. 3 is a flowchart showing an outline of processing for generating a “server-specific file identification information list” for each server (server 1 to server 4), and generating a “logical sum list” of file identification information therefrom. It is.

  “File identification information” in the present embodiment indicates a file name including directory information. That is, if there is a file with the file name FILE1 in the folder DIR1, the file identification information of the file is something like "DIR1 / FILE1".

  In step 301, the number of servers is substituted for variable n. The number of servers is the number of servers to be processed, and is “4” in the previous example (server 1 to server 4). If it is performed for all servers, the number of servers managed in the library area 1121 is acquired and substituted. For example, the operation condition of this process (for example, the server to be processed) ) Is set by the user, the number of servers is calculated based on the setting condition and substituted into the variable n.

  The subsequent loop 1 is a process for generating a “server-specific file identification information list” for each server.

  In step 302, file identification information (path and file name) of each file is acquired from the resource of server i in the library area 1121, and a server-specific file identification information list 1122 of server i is generated and stored in the storage unit 112. Store.

  In the subsequent step 303, file content specifying information is calculated from each file of the resource of the server i in the library area 1121, and this is stored in the server-specific file identification information list 1122 in association with the file identification information of each file.

  “File content specifying information” is information for specifying the contents of a file. For example, a calculation result (such as a hash value) obtained by performing a specific calculation process on a data string that is the contents of a file. Numerical information). Hash values, etc., do not provide completely unique information for the contents of the file, but it is sufficient to select and use an algorithm of a level necessary for use as a determination of file identity (error detection). .

  The processing in steps 302 and 303 is repeated until i is changed from 1 to n by loop 1, so that a server-specific file identification information list 1122 is generated for each server. FIG. 9 shows an example of the server-specific file identification information list 1122 generated by the processing in the case of the example of FIG. FIGS. 9A to 9D are server-specific file identification information lists 1122 corresponding to the servers 1 to 4, respectively.

  Loop 2 is a process for generating a “logical sum list” of file identification information from each server-specific file identification information list.

  In step 304, the first file identification information in the list is acquired from the server-specific file identification information list of the server i. In the case of the server 1 in FIG. 9, it is “DIR1 / FILE1”.

  The subsequent loop 3 executes the processing from step 305 to step 308 for all the file identification information in the server-specific file identification information list of the server i.

  In step 305, it is determined whether or not the logical sum list 1123 has the same file identification information acquired in step 304 (or acquired in step 308).

  As a result of the determination in step 305, if there is no same thing, the process proceeds to step 306, and processing for adding the file identification information acquired in step 304 (or acquired in step 308) to the logical sum list 1123 is performed. . On the other hand, as a result of the determination in step 305, if there is the same object, step 306 is skipped and the process proceeds to step 307.

  In step 307, a process of setting the flag of the server i of the corresponding file identification information in the logical sum list 1123 (FIG. 10) to 1 is performed.

  In the subsequent step 308, the next file identification information in the server-specific file identification information list of the server i is acquired.

  By repeating the processing of step 305 to step 308 through loop 3, the logical sum of the server-specific file identification information list of server i and the logical sum list 1123 is accumulated in the logical sum list 1123. The processes of 304 and loop 3 are performed on the file identification information list for each server by loop 2, so that the logical sum of the file identification information in the file identification information list for each server is formed in the logical sum list 1123. The Rukoto. FIG. 10 shows an example of the logical sum list 1123.

  For example, when processing is performed on the server 2 (processing of loop 2 in which i is 2), the top file identification information (DIR1 / FILE1) in the list (FIG. 9B) is acquired. If there is already the same file identification information (DIR1 / FILE1) in the logical sum list 1123 due to the processing for the server 1 (loop 2), step 306 is skipped (in the logical sum list). The process proceeds to step 307 (without adding new file identification information), and a flag indicating that the server 2 has a file corresponding to the file identification information (DIR1 / FILE1) is stored in the logical sum list 1123. Will be. On the other hand, when processing for the server 2 is being performed and the file identification information (FILE4) at the bottom of the list (FIG. 9B) has been acquired, the same is included in the logical sum list 1123. In step 306, processing for adding this (FILE4) to the logical sum list is executed.

  As described above, the “server-specific file identification information list” and the “logical sum list” for each server (server 1 to server 4) are generated by the processing of FIG. FIG. 4 shows a process of updating the “server-specific file identification information list” and the “logical sum list”. That is, in step 401, it is determined whether or not the server resource in the library area 1121 has been updated. If this has occurred, steps 402 to 403 (processing concepts similar to those in steps 302 to 303) are executed. The server-specific file identification information list is updated, and the “logical list” is updated by executing Step 404 and Loop 1 (the same processing concept as Step 304 and Loop 3 in FIG. 3).

  FIG. 5 detects whether there is any difference among files recognized as common to the entire server (files having the same file identification information), and the files included in the entire server and each server This is a process for making it possible to determine what kind of file is.

  In step 501, the first file identification information of the logical sum list 1123 is acquired. In FIG. 10, “DIR1 / FILE1” corresponds.

  Loop 1 is to execute the processing from step 502 to step 510 for each file identification information in the logical sum list 1123.

  In step 502, the logical sum list 1123 (FIG. 10) is referenced to determine whether there is a server whose flag corresponding to the file identification information acquired in step 501 (or acquired in step 510) is 0. . That is, it is determined whether or not there is a server that does not have a file corresponding to the file identification information.

  If there is a server whose flag is 0, the process proceeds to step 503, where “existence flag” is associated with 0 as the file identification information and stored in the simple comparison table 1124 (FIG. 11). On the other hand, if there is no server whose flag is 0, the process proceeds to step 504, and the file identification information is associated with “existence flag” as 1 and stored in the simple comparison table 1124.

  In the subsequent step 505, with reference to the logical sum list 1123 (FIG. 10), the server whose flag corresponding to the file identification information acquired in step 501 (or acquired in step 510) is 1, and is the highest server. And the server number is substituted into the variable s. In the present embodiment, the “highest server” is the server with the smallest server number. That is, the server number functions as “priority information”.

  In step 506, the file corresponding to the file identification information acquired in step 501 (or acquired in step 510) of the server s (the server with the flag corresponding to the file identification information being 1 and the highest server). File attribute information and file content specifying information are acquired, and these are temporarily stored as comparison source information. Further, 1 is assigned as identification information (file content identification information) for identifying the acquired file content identification information, stored in the detailed comparison table (FIG. 12) of the server s, and 1 is substituted into the variable t.

  “File attribute information” is information managed by the file system, which is one of the functions of the operating system. Specifically, update date / time information, file size information, authority information (owner group permission, etc.). In FIG. 20 or the like, which is a detailed display column described later, authority information in UNIX (registered trademark) is taken as an example, and the display of “root root 666” or the like in the “authority” column sequentially indicates the owner of the file and the group to which the file belongs. , Permission (representing the combination of read / write / executability) in octal notation).

  Step 507 and step 508 following step 506 are “file attribute information comparison processing” and “file content identification information comparison processing”, respectively, and correspond to the processing shown in FIGS. 6 and 7, respectively. It should be noted that there is no particular problem with either “file attribute information comparison processing” or “file content identification information comparison processing” first (steps 507 and 508 may be reversed).

  An outline of the processing operation of the “file attribute information comparison process” executed in step 507 of FIG. 5 will be described with reference to FIG.

  In step 601, the number of servers is substituted for variable n. (This is the same processing concept as in step 301 in FIG. 3.)

  In loop 1, each process (step 602 to step 609) is executed from the server next to the server (highest server) determined in step 505 in FIG. 5 to the last server in order. For example, when the server determined in step 505 is the server 2, the server 3 and the server 4 are caused to execute steps 602 to 609.

  In step 602, it is determined whether or not the flag of the server i corresponding to the file identification information acquired in step 501 of FIG. 5 (or acquired in step 510) is 1 with reference to the logical sum table 1123. That is, it is determined whether or not the server i has a file corresponding to the file identification information.

  If the flag is 1, a process of detecting whether there is a difference between the comparison source (the file attribute information of the highest server) and the file attribute information of the server i is performed by the processes of steps 603 to 609. . On the other hand, if the flag is 0, the server i does not have a file corresponding to the file identification information, so the processing of step 603 to step 609 is skipped and the loop 1 is advanced.

  In step 603, file attribute information of the file corresponding to the file identification information acquired in step 501 of FIG. 5 (or acquired in step 510) of the server i is acquired, and “comparison source information (highest server) File attribute information) ”. The acquired file attribute information is also stored in the detailed comparison table 1125 (FIG. 12) of the server i in association with the corresponding file identification information.

  If there is a difference in the authority information that is the file attribute information as a result of the comparison processing in step 603 (step 604), the “authority flag” corresponding to the corresponding file identification information in the simple comparison table 1124 (FIG. 11) is set. Store as 0 (step 605). On the other hand, if there is no difference, step 605 is skipped. The simple comparison table 1124 (FIG. 11) assumes that 1 is stored in each item as a default. Accordingly, when it is determined that “there is a difference”, the flag is overwritten with 0, and the flag is 1 as long as it is determined that “no difference”. The following processes are the same.

  If there is a difference in the time stamp information as the file attribute information as a result of the comparison processing in step 603 (step 606), the “time stamp flag corresponding to the corresponding file identification information in the simple comparison table 1124 (FIG. 11). "Is stored as 0 (step 607). On the other hand, if there is no difference, step 607 is skipped.

  If there is a difference in the file size information as the file attribute information as a result of the comparison processing in step 603 (step 608), the “file size flag corresponding to the corresponding file identification information in the simple comparison table 1124 (FIG. 11). "Is stored as 0 (step 609). On the other hand, if there is no difference, step 609 is skipped.

  Note that any of the three processes of steps 604 to 605, steps 606 to 607, and steps 608 to 609 may be performed first.

  “File” corresponding to the file identification information acquired in step 501 of FIG. 5 (or acquired in step 510) of the simple comparison table 1124 (FIG. 11) and the detailed comparison table 1125 (FIG. 12) by the processing of FIG. Items related to “attribute information” will be filled. 6 is repeated by the loop 1 in FIG. 5, all items related to “file attribute information” in the simple comparison table 1124 (FIG. 11) and the detailed comparison table 1125 (FIG. 12) are filled. Become.

  Next, an outline of the processing operation of the “file content specifying information comparison process” executed in step 508 of FIG. 5 will be described with reference to FIG.

  In step 701, the number of servers is substituted for variable n. (This is the same processing concept as in step 301 in FIG. 3.)

  As in loop 1 of FIG. 6, loop 1 executes each process (steps 702 to 709) from the server next to the server determined in step 505 of FIG. 5 (highest server) to the last server in order. It is something to be made.

  Step 702 is the same processing concept as step 602 in FIG. (It is determined whether or not the server i has a file corresponding to the file identification information acquired in step 501 of FIG. 5 (or acquired in step 510).)

  If the flag is 1, processing for detecting whether there is a difference between the comparison source (the file content specifying information of the highest server) and the file content specifying information of the server i by the processing of Step 703 to Step 709 And so on. On the other hand, if the flag is 0, the server i does not have a file corresponding to the file identification information, so the processing of step 703 to step 709 is skipped and the loop 1 is advanced.

  In step 703, the file content specifying information of the file corresponding to the file identification information acquired in step 501 of FIG. 5 (or acquired in step 510) of the server i is obtained from the server-specific file identification information list 1122 (FIG. 9). Acquired and compared with “comparison source information (file content specifying information of the highest server)”.

  If there is no difference in the file content specifying information as a result of the comparison processing in step 703 (step 704), 1 is assigned as identification information (file content specifying identification information) for identifying the file content specifying information, and the server This is stored in the i detailed comparison table (FIG. 12) (step 705).

  On the other hand, if there is a difference, the process proceeds to step 706, and the flag corresponding to the file identification information is “1” in the server (i−1) from the server s + 1 (the server next to the highest server). It is determined by referring to the logical sum list 1123, and the file content specifying information of the server is obtained from the server-specific file identification information list 1122, and it is determined whether there is the same one. That is, it is determined whether or not there is a server having the same file content identification information among the servers already processed by the process of loop 1 of FIG.

  If there is a server having the same file content specifying information as a result of the determination in step 706, the same information as the identification information given to the file content specifying information is stored in the detailed comparison table of server i (FIG. 12). ) As file content identification information (step 707).

  On the other hand, if the result of determination in step 706 is that there is no server having the same file content specification information, t is incremented (step 708) and identification information for identifying the file content specification information (file content specification identification) The value of t is given as information) and stored in the detailed comparison table (FIG. 12) of server i (step 709).

  For example, if the processing target of loop 1 in FIG. 5 is FILE4 (the file identification information at the bottom of the logical sum list (FIG. 10)) and the loop in FIG. 7 is i = 3 (server 3), “ The “comparison source” is “ddd...” That is the file content specifying information corresponding to FILE 4 of the server 2 (see FIG. 9), and this is the file content specifying information corresponding to FILE 4 of the server 3 “ddd. Since z ″ is different, the determination in step 704 is Yes, and the process proceeds to step 706. Since server (s + 1) is server 3 and server (i-1) is server 2, step 706 is immediately No. Therefore, the value of t changes from 1 to 2 (step 708), and 2 is assigned as identification information of the file content specifying information corresponding to FILE4 of the server 3 (step 709). Next, when the loop of FIG. 7 is i = 4 (server 4), the “comparison source” is “ddd...” That is file content specifying information corresponding to FILE 4 of the server 2. And “ddd... Z” which is the file content specifying information corresponding to FILE4 of the server 4 are different (see FIG. 9), the determination in step 704 is Yes, and the process proceeds to step 706. Since the server (s + 1) is the server 3 and the server (i-1) is also the server 3, the file content specifying information corresponding to FILE4 of the server 3 and the file content specifying information corresponding to FILE4 of the server 4 are compared. , This is the same, so the process moves to step 707. As a result, “2”, which is the identification information of the file content specifying information corresponding to FILE 4 of the server 3, is stored in the detailed comparison table of the server 4.

  The same file identification information (sequential number information starting from 1 in this embodiment) is assigned to the same file identification information and having the same file content identification information by the processing of loop 1 in FIG. Will be. In addition, the file content identification information, which is the serial number information, is given from a server with high priority.

  Step 710 after loop 1 determines whether or not t is 1 (that is, whether or not there are a plurality of file content specifying identification information), and if this is not 1, the simple comparison table 1124 ( The process of overwriting the “file content identification information flag” corresponding to the corresponding file identification information in FIG. 11) with 0 (step 712). That is, when t is not 1, it indicates that there is a different file content specifying information, and therefore a flag indicating that there is a difference is set.

  “File” corresponding to the file identification information acquired in step 501 of FIG. 5 (or acquired in step 510) of the simple comparison table 1124 (FIG. 11) and the detailed comparison table 1125 (FIG. 12) by the processing of FIG. Items relating to “content identification information (or identification information)” are filled. It should be noted that the processing of FIG. 7 is repeated by the loop 1 of FIG. 5, so that “file content specifying information (or identification information)” of the simple comparison table 1124 (FIG. 11) and the detailed comparison table 1125 (FIG. 12). All items will be filled.

  Returning to FIG. In step 509 following step 507 (file attribute information comparison processing) and step 508 (file content identification information comparison processing), the file acquired in step 501 (or acquired in step 510) of the simple comparison table 1124 (FIG. 11). It is determined whether or not all the flags (flags other than the difference flag) corresponding to the identification information are 1, and if they are all 1, 0 is stored in association with the difference flag, otherwise 1 Are stored in association with each other. That is, when the difference flag is 1, it indicates that there is some difference between the servers 1 to 4.

  In step 510, the next file identification information in the logical sum list 1123 (FIG. 10) is acquired and the processing of loop 1 is continued. When the processing for all the file identification information in the logical sum list 1123 is completed. Ends the process of FIG.

  Next, processing for outputting the processing result obtained by the above processing will be described. FIG. 16 is a diagram illustrating an example of a processing result output screen. In the processing result display screen in this example, roughly speaking, a display column for processing conditions (the portion of “1” in the figure, details are shown in FIG. 17), and a comparison result simplified display column (“ 2 ”, details are shown in FIG. 18), and a comparison result detail display column (“ 3 ”in the figure, details are FIGS. 19 to 25).

<Simple display processing>
FIG. 13 is a flowchart showing an outline of the “simple display process”. “Simple display processing” is based on the logical sum list created in the above processing, and there is a difference between the files held as the entire system (for example, between all servers having the same function) and each server for each file. This is a process for displaying a “comparison result simplified display field” for displaying simplified information indicating whether or not in a list format.

  In step 1301, with reference to the simple comparison table 1124 (FIG. 11), the file identification information and the corresponding flags (difference flag, existence flag, authority flag, time stamp flag, file content specifying information flag) Get information. The simple comparison table 1124 is a table that holds information corresponding to each file identification information based on each file identification information in the logical sum list 1123, as is clear from the processing of FIG. Therefore, the processing in step 1301 can be said to be processing performed based on “file identification information in the logical sum list”.

  In the following step 1302, processing for converting each acquired flag information into a simple display symbol is performed. The “simple display symbol” is information that allows a person to determine at a glance which flag is different (how items differ between servers for each file). FIG. 18 is a diagram illustrating a screen display example of the “comparison result simplified display column”. In this example, “E” is a symbol (simple display symbol) when the difference flag is 1 (that is, when there is a difference for any item), and “D” is when the time stamp flag is 0 (update) “P” is a symbol when the authority flag is 0 (when there is a difference in authority), “C” is a symbol when the file content specifying information flag is 0 (file content specifying) "M" is a symbol when the presence flag is 0 (when there is a difference), and "-" is when there is no difference (the difference flag is 0 or other flag) Is a symbol of 1). Note that “B” is a symbol displayed when processing related to “content difference display processing” described later is performed. Note that a table that defines the state of each flag and the corresponding simple display symbol is stored in the storage unit 112 for the conversion process to the symbol.

  In step 1303, a process of generating a screen (ie, the screen of FIG. 18) in which each file identification information and each corresponding simple display symbol are associated with each other in a list format is generated. In step 1304, the display process is performed. I do.

  The screen display example of FIG. 18 is different from the contents of FIG. 8 used as an example and the contents of each list or table generated based on this, but as shown in the figure, the file identification is indicated as “file name”. Information (file names including paths) is listed and associated with the information, simple display symbols are displayed in a list form as “results”. For example, regarding the file identification information file “TOOL / lib / file_a”, there is a difference in contents (file content specifying information) when viewed as the entire system (for example, between all servers having common functions). It can be recognized at a glance. “Number” is a serial number assigned to each file, and is automatically assigned at the time of screen display processing, or automatically associated when generating a logical sum list or a simple comparison table. It may be stored. In addition, although the information regarding the file size flag is not displayed as a simple display here, it may be displayed as well, or the “difference in files with the same file identification information” shown in FIGS. In the case where an item having a difference is detected in addition to the information exemplified above in the “processing for detecting the presence or absence”, it is naturally possible to display such information.

<Detailed display process>
FIG. 14 is a flowchart showing an outline of the “detail display process”. “Detailed display processing” refers to which server has each file for each file based on the various types of information acquired in the above processing and what items differ from the comparison source server. This is a process for displaying a “comparison result detail display field” for displaying information such as whether there is a list in a list format.

  In step 1401, the first file identification information of the logical sum list 1123 is acquired.

  In the subsequent loop 1, the processing from step 1402 to step 1409 is performed for all the file identification information in the logical sum list 1123.

  In step 1402, the logical sum list 1123 is referred to, and the server having the flag corresponding to the file identification information (file identification information acquired in step 1401 or step 1409) and having the highest rank is determined. (Processing concept similar to step 505 in FIG. 5)

  In step 1403, the file attribute information corresponding to the file identification information (file identification information acquired in step 1401 or step 1409) is acquired with reference to the detailed comparison table 1125 (FIG. 12) corresponding to the server acquired in step 1402. This is used as comparison source information. Also, the file content identification information corresponding to the file identification information is acquired, and a record in which the acquired information is associated is generated. 19 to 25 are diagrams showing examples of display screens of the “comparison result detail display field”. For example, in the case of FIG. 21 (detailed display screen for “TOOL / lib / file_c”), the record generated in step 1403 is “APSERVER01, 2003, which is the top data of the data displayed as a list. / 12/03 14:28:35, 7, root sys 700, 01, comparison source ”. That is, it is a record having a server name (host name in the figure), various file attribute information, file content identification information (corresponding to ID in the figure), and information indicating “comparison source”.

  In subsequent step 1404, the server having the flag corresponding to the file identification information (the file identification information acquired in step 1401 or 1409) and having the next rank is acquired by referring to the logical sum list 1123. To do. As described above, “next order” means the server number order in this embodiment, and when step 1404 is executed first, it becomes the server next to the server acquired in step 1402. When step 1404 is executed through 1406, the server becomes the server next to the server acquired in the previous step 1404.

  In step 1405, the file attribute information corresponding to the file identification information (file identification information acquired in step 1401 or 1409) is acquired with reference to the detailed comparison table 1125 (FIG. 12) corresponding to the server acquired in step 1404. Then, this is compared with the information of the comparison source (that is, the information acquired in step 1403). Further, the comparison result obtained from this is converted into a simple display symbol (similar to that described in step 1302 in FIG. 13), and the file content identification information is also acquired to generate a record in which these pieces of information are associated with each other. . The records generated in this step are the second and subsequent data of the data displayed as a list when FIG. 21 (detailed display screen for “TOOL / lib / file_c”) is taken as an example. As an example, “APSERVER02, 2003/12/03 14:28:35, 7, root sys 646, 01, -p-”. That is, a record having a server name, various file attribute information, file content identification information (corresponding to an ID in the figure), and each simple display symbol.

  In step 1406, it is determined by referring to the logical sum list 1123 whether or not the “next-ranked server” corresponding to the file identification information (the file identification information acquired in step 1401 or step 1409) exists. If YES in step 1404, the flow returns to step 1404 to repeat the process. If NO in step 1404, the flow advances to step 1407.

  In step 1407, a screen in which the records generated in steps 1403 and 1405 are displayed in a list format (that is, any screen in FIGS. 19 to 25) is generated, and in step 1408, the screen display processing is performed.

  In step 1409, the next file identification information in the logical sum list is acquired and the processing in loop 1 is continued (processing concept similar to step 510 in FIG. 5).

  The screen display examples of FIGS. 19 to 25 are different from FIG. 8 used as an example and the contents of the lists and tables generated based on this as in the case of FIG. Each of FIGS. 19 to 25 is an example of a display screen corresponding to each file identification information. For example, FIG. 19 is a detailed screen for “TOOL / lib / file_a”, and FIG. 20 is “TOOL / lib / This is the detailed screen for file_b ". That is, each screen of FIGS. 19 to 25 is a screen that is displayed when the processing of step 1402 to step 1409 is executed once, and this is repeated by loop 1 to display the entire screen of FIGS. 19 to 25. Will be. As shown in each figure, file identification information (file name including path) is displayed at the top of the screen (file name including path) (sequential number is also displayed), and a list of servers that have the file and various information are supported. The attached list is displayed in tabular form. In the list, the server with the highest priority among the servers having the corresponding file is displayed as the “comparison source” at the top, and then the server name (host name in the figure), various file attribute information, and file in order of priority. Content identification information (corresponding to ID in the figure) and each simple display symbol are displayed.

  As described above, according to the file management system of this embodiment, a “server-specific file identification information list” is generated for each server, and the entire system is based on the “server-specific file identification information list”. A “logical list” that is a list of file identification information is generated. Accordingly, it is possible to efficiently compare the file status of each server in relation to the entire system (for example, between all servers having the same function). Also, each file identification information indicates information indicating that there is a server that does not have a file corresponding to the file identification information, and whether there is a server having file attribute information different from the comparison source file attribute information. Information and the like are associated. Therefore, for example, it is possible to immediately determine whether or not all servers have a file called A among servers having common functions and whether or not there is a difference in the file identification information of A. Is possible.

  In addition, when the file identification information is the same and the file content identification information is different between servers having the same file identification information, the file content identification information is given in order according to the priority order of the servers. Therefore, for example, when the file content specifying information generated from the A file of each server is different among a plurality of servers having the file A, different file content specifying identification information is given to them. Thus, it is possible to immediately determine the extent to which the file content specifying information is different, that is, the extent to which the file name is A and the content (data) is different. Become.

  In addition, the simplified display screen “Comparison result simplified display field” indicates what kind of files the system has as a whole, and whether each file is the same as the system as a whole (in each server) or not. This is very useful because it is possible to determine at a glance what items are different.

  In addition, a detailed display screen called “comparison result detail display field” allows each file to determine which server has the file, what the file attribute information is, and what the comparison source is. This is very useful because it makes it possible to recognize at a glance whether there is a difference between items.

  For example, as shown in FIG. 19, regarding “TOOL / lib / file_a”, since the file content identification information is the same for APSERV01 and APSERV02, the file contents (data) are the same. Judgment can be made. On the other hand, since the file content identification information for APSERV03 and APSERV04 is 02 and 03, respectively, it can be determined that the file contents (data) are different from APSERV01 and APSERV02, and between APSERV03 and APSERV04. It can be determined that the file contents are different. That is, by looking at the file content identification information, it is possible to recognize at a glance which server and which server have the same content, which is very useful. When a very large amount of files need to be matched in a large-scale system, the usefulness of obtaining a comparison result for each file as evidence in a list is very high.

  Further, since it is possible to grasp not only the presence / absence of differences in file contents (file content identification information) but also the presence / absence of differences in file attribute information as a list, it is very useful. For example, if there is an application that operates based on the authority information of the file attribute information as a condition for writing or reading the file, even if the file contents (data) itself are completely the same, the authority is different. If this happens, the file cannot be read or written, and the system may not work properly. According to the file management system of the present embodiment, whether or not there is a difference in the file attribute information of each server with respect to the comparison source server can be determined at a glance by a simple display symbol. This is very useful for preventing or identifying the cause.

  Further, in the file content specifying information comparison processing (processing in FIG. 7) between the servers, the file content specifying information is compared in order from the server with the highest priority, and if this is different, new file content specifying identification information is obtained. Since the assignment is performed, the processing load can be reduced. Although this point is not clarified in the processing of FIG. 7 for simplification of explanation, the case of FIG. 19 will be described as an example. As described above, APSERVER02 having the same file content identification information as APSERV01 does not need to be compared with APSERV03 (that is, a server having the same identification information as the compared server can be excluded from comparison). Therefore, the load is reduced by the processing.

  When it is determined that there is a difference in the file contents by comparing the file content specifying information, specific differences may be detected by the following process.

<Content difference display processing>
FIG. 15 is a flowchart showing an outline of the “contents difference portion display process”. It is assumed that this process is executed after giving specific file identification information as an argument.

  In step 1501, 2 is substituted for the variable n, and in the subsequent step 1502, referring to the detailed comparison table 1125 (FIG. 12) of each server, it corresponds to the file identification information given as an argument to this processing. In addition, it is determined whether or not there is an item whose file content identification information is n. That is, it is determined whether or not the file content identification information is 2, which indicates that there is a file content that is determined to be different by comparison of the file content identification information.

  In the subsequent step 1503, the “file whose file content identification information is n” determined in step 1502 or 1509 is acquired from the library area 1121. Further, by referring to the detailed comparison table 1125 of each server for a file having the same file identification information as the file (that is, information given as an argument) and the file content identification information is 1. It is determined and obtained from the library area 1121. For example, when this processing is executed with the argument “DIR / FILE1” in the case of FIG. 12, it is determined that the file content identification information is 2 based on the detailed comparison table 1125 of the server 3, Details of the server 1 (or server 2) that the file having the same file identification information (DIR / FILE1) and the file content identification information 1 is present in the server 1 (or server 2) This is determined by referring to the comparison table 1125.

  In the next step 1504, it is determined whether the acquired file is a binary file or a text file. This process is performed, for example, by reading 1000 bytes from the beginning of the file data and determining whether there is null data (if there is a null, it is determined as a binary file). Such a file may be used as long as it can be determined from the extension of the file.

  If the result of the determination in step 1504 is a binary file, the binary file is converted to text by applying a command to convert it to text (step 1505). If it is a text file, step 1505 is skipped. To do. “Text conversion command” is used to convert all or part of a binary file into text. For example, by executing a specific command on a specific file on the command line of the OS, the entire binary file is processed. Alternatively, it is a concept including a part extracted as text and a part converted into text by executing a specific file on a specific program (some instruction for executing the processing). The text conversion command is determined for each file type (for example, a what command for an execution file, a tar command for an archive file, etc.), and executes an appropriate command according to the file type.

  In step 1506, a full-text comparison is made between the file whose file content identification information acquired in step 1503 is n and the file whose file content identification information is 1 (both are text by the above processing) ( If the text obtained by the text conversion command is a part of the binary file, execute the process to compare the whole text of the “part”. To detect.

  In step 1507, a record in which the different part obtained in step 1506 is associated with the server name is generated.

  In the subsequent step 1508, n is incremented, and in the step 1509, the detailed comparison table 1125 (FIG. 12) of each server is referred to, corresponding to the file identification information given as an argument to this processing, and the file It is determined whether or not the content identification information is n (the processing concept is the same as in step 1502, but n is not 2 here). As a result of the determination, if there is one whose file content identification information is n, the process returns to step 1503 to repeat the process, and if not, the process proceeds to step 1510.

  In step 1510, a screen in which the records generated in step 1507 are displayed in a list format is generated, and in step 1511, processing for displaying the screen is executed.

  As described above, according to the process of FIG. 15, when there is a difference in the file content identification information (that is, when the file content identification information is different, indicating that the file content is different), these files This is useful because it can detect specific differences in files by comparing all the texts. Furthermore, even if the file is a binary file, since the specific difference is detected after executing the command to convert it to text, the difference can be detected as information that can be understood by humans. Is very useful. In other words, if the contents of the binary file are simply compared, the difference is simply “1” and “0” inverted, and even if the part is displayed, it is meaningful information for the user. However, according to the above processing, since the whole text is compared after the text is converted into text, the difference can be obtained as text, which is meaningful for the user. It can be useful information. For example, by using the tar command described above, it is possible to determine which file in the archive file is different (if the archive files are simply compared, the archive file A and the archive file B Only know that there is a difference between them).

  Each process described above may be associated with each other and executed as a single process as a whole, or may be executed individually in response to a request from the user. It does not matter.

  For example, in the process of FIG. 3 (including FIG. 4), the list may be generated for the entire system (all servers), or the process may be performed only on the server specified by the user. It may be a thing. Further, by executing the processing of FIG. 3 (including FIG. 4) in advance, the system always keeps a list for each server and a logical sum list, and the list in the processing of FIG. 3 may be referred to, or when the processing request shown in FIG. 5 or the like is made, the processing shown in FIG. 3 is executed whenever necessary to generate each necessary list. It doesn't matter.

  Similarly, in the process of FIG. 5 (including FIGS. 6 to 7), it is possible to process all file identification information in the logical sum list and target all servers. For example, a process in which a server as a comparison resource is designated by a user or a process in which a file (file identification information) is designated may be used. The same applies to the processing of FIG. 13 and FIG. 14, and it may be processing for displaying all the results processed for the entire system by the processing of FIG. 3 and FIG. 5. It may be a process of displaying a part of the result processed for the entire system (server or file specified by the user). Furthermore, when there is a screen display request designated for the server or file by the user, the processes of FIG. 3 and FIG. 5 and the processes of FIG. 13 to FIG. 15 are executed only for the range necessary for the condition. You may be something like this.

  Any of these processing modes can be executed based on the processing concept described above.

  As an example of such a variation of the processing mode, the outline of the processing operation executed when there is a “file comparison request” designated by the user for the server to be processed or the file to be compared is shown in FIG. 26 and FIG. Shown as a flowchart. It is assumed that the file content specifying information of each file has been calculated as a premise of the processing (of course, it may be calculated as needed when necessary in the following processing). Note that this process is not based on the assumption that the processes in FIG. 3 and the like described above are being executed, and can be operated independently.

  FIG. 26 is a flowchart showing an outline of the entire process executed when there is a “file comparison request”.

  In step 2601, file identification information of a server to be processed (comparison) and a file to be compared is acquired. This processing is performed by acquiring user input information for the input unit 114 while displaying the processing condition setting screen on the output unit 115.

  In step 2602, the library area 1121 is referred to, and the server having the file corresponding to the file identification information acquired in step 2601 (the processing target server specified in step 2601) and the highest server is determined.

  In the subsequent step 2603, “file content identification information comparison processing” is executed. This process is basically the same as FIG. 7, but in FIG. 7, it is assumed that each process such as FIG. 3 has already been executed. It becomes processing.

  In step 2701, the number of the largest server (low priority) among the processing target servers designated in step 2601 in FIG. In the following step 2702, the number of the highest server determined in step 2602 in FIG. 26 is substituted for the variable s.

  In step 2703, the file content specifying information of the file corresponding to the file identification information specified in step 2601 in FIG. 26 of the server s (the highest server) is acquired and used as “comparison source” information. Further, 1 is assigned as identification information (file content identification information) for the acquired file content identification information and stored in the detailed comparison table 1125 of the server s. Further, 1 is substituted into the variable t.

  The processes in steps 2701 to 2703 described above are additional processes to FIG. 7 based on “the processes in FIG. 3 and the like are not executed”. That is, in steps 2701 to 2703, only necessary processes are executed among the processes in FIG. 3 and the like. As mentioned in paragraph 0155, “based on the process concept described above”. It's just what you're doing.

  The subsequent processing of loop 1 is the same processing as loop 1 of FIG. 7, but since the logical sum table 1123 does not exist as a premise of this processing, step 2704 is replaced with step 702 and step 706 of FIG. Step 2705 is executed. That is, it is determined by referring to the library area 1121 instead of determining whether the server i or the like has a file corresponding to the file identification information with reference to the logical sum table 1123. For “i = s + 1 to n”, which is the loop 1 repetition condition, processing is executed only for the processing target server designated in step 2601 of FIG. 26 among servers having server numbers from s + 1 to n. It will be.

  27, a file corresponding to each file content specifying information of each file determined based on the file identification information obtained in step 2601 of each server to be processed specified in step 2601 (FIG. 26). The content identification information is given and stored in the detailed comparison table 1125.

  In step 2604 following step 2603 which is the processing of FIG. 27, the file attribute information of the file corresponding to the file identification information (information obtained in step 2601) of the highest server determined in step 2602 is acquired from the library area 1121. This is the “comparison source” information. Further, the acquired file attribute information and information indicating “comparison source” are stored in the detailed comparison table 1125 of the highest server. FIG. 28 shows an example of the detailed comparison table 1125 generated by this processing. FIG. 28 shows an example in which information corresponding to a plurality of file identification information is stored in the detailed comparison table 1125 of each server, but the processing of FIG. 26 (and FIG. 27) is designated in step 2601. Since the process is performed based on the “file identification information”, the information obtained by executing the process of FIG. 26 (and FIG. 27) once is only information corresponding to one file identification information. .

  In step 2605, the library area 1121 is referred to, and the next processing target server having the file corresponding to the file identification information (information obtained in step 2601) is determined.

  In step 2606, the file attribute information of the file corresponding to the file identification information (information obtained in step 2601) of the server determined in step 2605 is acquired from the library area 1121, and the “comparison source” acquired in step 2604 is acquired. Compare with Then, the comparison result is converted into a simple display symbol (a concept similar to step 1302 in FIG. 13), and these pieces of information are stored in the detailed comparison table 1125. The information is stored in the “file attribute information comparison result” field of FIG.

  In step 2607, it is determined whether or not there is a “next processing target server in order” corresponding to the file identification information (information obtained in step 2601) by referring to the library area 1121. Returns to step 2605 and repeats the process, and if there is no, moves to step 2608.

  In step 2608, based on the information of the detailed comparison table 1125 (FIG. 28), the server name, the “simple display symbol” that is the difference determination result of the file attribute information, and the file content specifying identification information are associated with each other and listed. A screen in the form of a table is generated, and this is output in step 2609 to end the process.

  FIG. 29 shows an example in which file comparison processing is executed on a plurality of files that meet the conditioning, rather than limiting “files to be compared” to specific one file identification information.

  In step 2901, conditions for determining a server to be processed and a file to be compared are acquired. “Conditions for determining the file to be compared” means, for example, by specifying only the file name so that the directory structure (path difference) does not matter, or by specifying a specific directory , One that targets all files belonging to the directory, one that uses wildcards for part of the file name and path, and other files that execute processing based on file attribute information (for example, Specified by the update date and time).

  In step 2902, a file to be compared is determined based on “a condition for determining a file to be compared”, each corresponding file identification information is acquired, and each acquired file identification information is stored. A “discrimination target file identification information list” is generated.

  In step 2903, the first file identification information in the “discrimination target file identification information list” is acquired. The subsequent processing of loop 1 is to execute the processing of step 2904 to step 2905 for each file identification information in the “discrimination target file identification information list”.

  The “file comparison / display processing” executed in step 2904 has the same processing concept as the processing in FIG. In the process of FIG. 26, the processing target server and file identification information are acquired in step 2601. When called from the processing of FIG. 29, the processing target server information acquired in step 2901 of FIG. The processing target server and the file identification information are acquired by passing the file identification information targeted in loop 1 (the file identification information acquired in step 2903 or step 2905) as an argument (step in FIG. 26). 2601 is replaced).

  The process of FIG. 26 is repeatedly performed for a plurality of file identification information by loop 1, and for each file identification information, a “simple display symbol” that is a difference determination result between the server name and the file attribute information. And a screen in which the file content identification information is associated with each other in the form of a list is displayed.

  The display screen examples shown in FIGS. 16 to 25 are basically processing results generated in accordance with the processing described in FIGS. 26 to 29 (other processing described above (FIGS. 13 and 15). Etc.) that need to be executed). FIG. 17 shows a screen display portion relating to processing conditions. As comparison targets, APSERV01 to APSERV04 and additional comparison targets TESTAP02 to TESTAP04 (corresponding to the test server 13) are designated. Note that “comparison resource” in the same screen is directory information indicating the library area 1121 (“additional comparison resource” is directory information indicating the library area of the test server). Further, “/ TOOL / lib” is specified as a search path, and this is intended only for the file having the directory information “/ TOOL / lib” as file identification information.

  “Detail non-display” in the same screen does not display the details even if there is a difference regarding the information. For example, in the case of the condition “authority when the content of the difference is only the authority difference, the detailed information is not displayed. Depending on the server or file, this may be "if it is known in advance that the permissions are different", "if it is known that it does not depend on the permissions", or "pure only the contents of the file. This is a function to prevent unnecessary scrutiny and detailed output in such cases. Accordingly, a process that does not output (display) unnecessary information based on the setting is executed (an unnecessary process among the processes described above may be prevented from being executed based on the setting).

  “Binary comparison” in the same screen is a condition on whether or not to execute the process of FIG. 15, and this can specify and specify a file on which the process is to be executed. For example, in this example, only file f is specified, and as a result, “B” appears as a simple display symbol corresponding to “TOOL / lib / file_f” in the simple display screen of FIG. Further, in FIG. 24 which is a detailed display screen for “TOOL / lib / file_f”, a different portion which is a result of the full text comparison is displayed at the bottom of the screen. As a result, for example, it is basically the same file, but the file contains information unique to each server (for example, IP address). By performing the process of FIG. 15 for the file in order to confirm the portion, it has an excellent effect that the different portion can be visually recognized. In this embodiment, from the viewpoint of process efficiency, the specific file comparison process as shown in FIG. 15 is executed when there is a difference in the file content specifying information. Depending on the size of the file, a specific file comparison process may be performed from the beginning (the file content specifying information is not compared). For example, instead of comparing the file content specifying information in the processing of FIG. 7, the files themselves may be compared and different identification information may be assigned if there is a difference.

  In the process of FIG. 14, the process is executed only for the server having the file corresponding to the file identification information (step 1404), but the corresponding file is not executed while executing the process for all the servers. For the server, a process for displaying that the target file does not exist may be performed. FIG. 22 shows an example of a display screen based on such processing, and it is indicated that “TOOL / lib / file_d” does not exist in APSERV04 and TESTAP04. Such display processing is useful because it can clearly recognize a server in which the corresponding file does not exist. That is, it can be determined at a glance whether or not the file exists appropriately on the appropriate server (or the server that should not exist).

  The screen display may be performed on the output unit 115 provided in the file management server 11, or necessary information is transmitted as a response to the request from the client PC 15 or PC 125, and is transmitted to the PC 15 or PC 125. Of course, it may be displayed on an output unit (monitor) provided. Of course, it may be output to a printer or the like instead of being displayed on the screen.

  In the present embodiment, for convenience of explanation, the example in which the priority order is determined by the server number has been described as an example, but what is separately defined as “priority information” or defined by the user each time. It does not matter. For example, by providing a table in which different priorities are defined for each file, the processing may be executed by changing the priority server (that is, the comparison source server) for each file. .

  In this embodiment, the file identification information is described using a file name including directory information. For example, even if there is a difference in directory information (path) or a part of the file name, the same file identification is used. Processing that is regarded as information may be possible (so that some differences can be absorbed). For example, a part of the path is processed using a wild card, or a specific conversion (for example, a part of the path for the server 2 is converted to another path) is defined in advance or is defined by the user for each process. It may be anything. Of course, the operation may be performed only by the file name.

  Further, the other information is not limited to that shown in the embodiments, and may be appropriately determined in accordance with the spirit of the present invention. For example, in the present embodiment, the file content identification information is used as serial number information, but identification information in a completely different form may be used (however, as can be understood from the description in the embodiment, continuous information Is more convenient for processing). The simple display symbols are not converted one by one in the screen display processing (FIGS. 13 and 14). For example, in each processing of steps 604 to 609 in FIG. It may be stored.

  The lists and tables described in this embodiment are merely examples shown for easy understanding, and the present invention is not limited to the configurations shown here. In accordance with the gist of the invention described above, each piece of information may be held so as to be associated with each other.

  In this embodiment, the storage unit 112 of the file management server 11 includes a library area 1121 in which a copy of each server resource provided in the system is stored. An example has been described in which information about each server (file, file identification information, file attribute information) is acquired and processing is executed. However, the file management server 11 does not include the library area 1121, and if necessary, from each server. The information may be collected via a network. That is, information necessary for the above-described processes may be collected and executed from the business server 12 or the test server 13 that is actually operating via the network. The processes that can be executed in the business server 12 or the test server 13 are executed on the business server 12 or the test server 13 side (for example, calculating each file content specifying information of each file or generating a server-specific file identification information list) May be executed by each server). In either case, it can be executed based on the gist of the present invention described above (it is not different in concept).

Block diagram showing outline of configuration of file management system Block diagram showing the outline of the configuration of the file management server Flowchart showing the outline of the process for generating the "server-specific file identification information list" and "OR list" Flowchart showing the outline of the process for updating the "server-specific file identification information list" and "OR list" A flowchart showing an outline of processing for detecting whether there is a difference in files having the same file identification information Flow chart showing the outline of the processing operation of "File attribute information comparison processing" Flowchart showing the outline of the processing operation of “file content identification information comparison processing” A diagram showing an example of the file structure of each server The figure which shows an example of a structure of the file identification information list classified by server Diagram showing an example of the configuration of a logical sum list The figure which shows an example of a structure of a simple comparison table The figure which shows an example of a structure of a detailed comparison table Flow chart showing the outline of the processing operation of "Simple display processing" Flowchart showing the outline of the processing operation of “detail display processing” Flowchart showing the outline of the processing operation of the “content difference display processing” The figure which shows an example of the output screen of a processing result The figure which shows an example of the display column about the processing conditions which are a part of output screen of a processing result The figure which shows an example of the simple display column which is a part of output screen of a processing result The figure which shows an example of the detailed display column (detail display column of file_a) which is a part of output screen of a processing result The figure which shows an example of the detailed display column (detail display column of file_b) which is a part of output screen of a process result The figure which shows an example of the detailed display column (detail display column of file_c) which is a part of output screen of a processing result The figure which shows an example of the detailed display column (detail display column of file_d) which is a part of output screen of a processing result The figure which shows an example of the detailed display column (detailed display column of file_e) which is a part of output screen of a processing result The figure which shows an example of the detailed display column (detailed display column of file_f) which is a part of output screen of a processing result The figure which shows an example of the detailed display column (detailed display column of file_g) which is a part of output screen of a processing result Flow chart showing the outline of processing operation of "File comparison / display processing" The flowchart which showed another example of the processing operation of "file content specific information comparison processing" The figure which shows another example of a structure of a detailed comparison table Flow chart showing the outline of the processing operation of “Comparison file condition specification, file comparison / display processing”

Explanation of symbols

11 File management server 12 Business server 15 PC (terminal equipment)
20 network 111 control unit 112 storage unit 113 communication unit 114 input unit 115 output unit (output device)
1121 Library area 1122 Server-specific file identification information list 1123 Logical sum list

Claims (11)

A file management system comprising a plurality of servers connected via a network, a server connected to the network, and a file management server for managing files held by the plurality of servers,
The file management server manages a file for each server by holding in the library area the same file structure as the file held by each server.
The file management server acquires file identification information of a file included in each server from the file configuration of the library area, and creates a server-specific file identification information list in which the acquired file identification information is associated with each server. Generate and obtain the first file identification information of the list from the server-specific file identification information list corresponding to each server, and based on each file identification information of each server obtained from the list , each file identification information In the middle of generating the first logical sum list including the logical sum file identification information, the file identification information is obtained from the first logical sum list of the file identification information, and the logical sum list includes: to determine whether there is a same as the acquired file identification information, when the same thing was not the first The obtained file identification information is added to the logical sum list, the server flag of the corresponding file identification information in the first logical sum list is set to 1, and the file identification next to the server-specific file identification list of the server is set. A file management system characterized in that a list is acquired and a file obtained by adding the file identification information to the first logical sum list is stored as a second logical sum list. Wherein the file management server manages the file attribute information of the file management system, the are determined in priority to a plurality of servers, by the file management server having the priority information, the file identification information The file identification information of the server having the highest priority based on the priority information, the server having a file corresponding to the file identification information in the server-specific file identification list The file attribute information of the file corresponding to the file is acquired , the acquired file attribute information is used as comparison source file attribute information, the file attribute information of each server having a file corresponding to the file identification information is acquired, and the comparison source file is acquired. Compare with the attribute information to determine whether there is a difference, and Serial file management system according to claim 1, characterized in that the process for holding in association with each file identification information. Priorities are defined for the plurality of servers, and the file management server including the priority information acquires file identification information from the logical sum list of the file identification information, and corresponds to the acquired file identification information . Determining the server having the highest priority based on the priority information, acquiring a file corresponding to the file identification information of the determined server from the library area, and acquiring the acquired file . The file of each server is the same as the comparison source file by acquiring the corresponding file of each server having the file corresponding to the file identification information as the comparison source file and comparing it with the comparison source file. Each file on each server by repeating the process to determine whether The information as to whether the file is the same as the comparison source file is collected, and the information is stored in association with each file identification information. File management system. Priorities are defined for the plurality of servers, the file management server having the priority information calculates each file content specifying information based on each file in the library area, and the file content specifying the information stored in association with the said file identification information to the server by file identification list, the priority the acquires the file identification information from the logical sum list, a server having a file corresponding to the file identification information In order from the server with the highest priority based on the information, the file content specifying information of the file corresponding to the file identification information is acquired from the file identification information list for each server , and the same as the acquired file content specifying information is in the case it was not in the acquired file content specific information so far, those The acquired file contents identification information to grant another file contents specific identification information, if there is the same thing, and the acquired file content identification information, and given the same file content specific identification information, The process of holding in association with each file identification information is repeated for each server having a file corresponding to the same file identification information, and the repetition process is further performed for each file identification information in the logical sum list. The file management system according to any one of claims 1 to 3, wherein the file management system is performed. When the file identification information is associated with information indicating that there is a server that does not have a corresponding file by the process of claim 1, or there is a difference in file attribute information by the process of claim 2. Are associated with each other, or are associated with information indicating that they are not the same as the comparison source file by the process of claim 3 , or are associated by the process of claim 4. The information indicating that there is a difference is stored in association with the file identification information when the file content identification identification information is not one. The file management system according to claim 1. An output device provided in the file management server or an output device provided in a terminal device connected to the file management server includes the file identification information and the information corresponding to the file identification information in a list display format. 6. The file management system according to claim 5, wherein the file management system outputs the file. Priorities are defined for the plurality of servers, the file management server having the priority information calculates the file content specifying information based on the files in the library area, and the file content specifying information Is stored in the server-specific file identification information list in association with the file identification information of each file, and the file management server having the priority information has received a file detail comparison request specifying the file identification information In the case, the server having the file corresponding to the file identification information, in order from the server with the highest priority based on the priority information, from the server-specific file identification information list, the file corresponding to the file identification information Acquires file content identification information, and acquires the acquired file content If those information the same as there is no in the obtained file content identification information so far, and the acquired file content identification information assigned to another file contents specific identification information, there is the same thing In the case, the process of assigning the same file content identification information as the acquired file content identification information is repeated , and the server name of the server and the file content identification of the file are identified from the server-specific file identification list. 7. The file management system according to claim 1, wherein the processing result is output in a list display format in which identification information is associated.   When the file identification information is the same and the file content specifying information is another file, the file is acquired from the library area, and when the file is a text file, the file data of the text file By comparing, it is determined whether there is a difference between the file data of both comparison files. If the file is a binary file, the text file command is applied to the file, and the binary file is converted to text using the text command. The comparison of the text file data is performed to determine whether there is a difference between the two comparison file data, and when there is a difference in the file data, the difference portion of the file data is output as a determination result. The file tube according to any one of claims 4 to 7. System. The file management server needs to obtain the file or file identification information or file attribute information from the server via the network if, calculates a file content specific information from a file obtained as necessary, or, each Each server having a file calculates each file content specifying information based on each file, stores the file content specifying information in a server-specific file identification information list in association with the file identification information of each file , and the file management server the file or the file identification information or the file content specific information or file attribute information from the server via the network to retrieve as necessary, and executes the respective processes according to claim 1 The file according to any one of claims 9 to 9. Le management systems. A file management server for managing a file held by each of the plurality of servers in a system formed by connecting a plurality of servers via a network, the control unit, an input unit, an output unit, A storage unit, and the storage unit includes a library area in which a file configuration similar to the file held by each server is stored. The server corresponding to each server is obtained by acquiring file identification information of a file having the file, generating a server-specific file identification information list in which the acquired file identification information and each server are associated with each other, and storing the list in the storage unit. from another file identification information list, and it acquires the first file identification information of the list, obtained from the list Based on the file identification information of each server, in the middle of generating a first logical OR list including the logical sum file identification information of each file identification information, the file identification information from the logical sum list of the file identification information It is acquired, and it is determined whether or not there is the same file identification information as the acquired file identification information in the logical sum list, and if there is no same, the acquired file is stored in the first logical sum list. Identification information is added, the server flag of the corresponding file identification information in the first OR list is set to 1, the file identification list next to the server-specific file identification list of the server is obtained, and the file identification information when the said first logical sum list added and held in the storage unit as a second logical sum list and the same was not, the corresponding file File management server that does not server information indicating that the presence, and wherein the holding said in the storage unit in association with each file identification information. A file management server for managing a file held by each of the plurality of servers in a system formed by connecting a plurality of servers via a network, the control unit, an input unit, an output unit, A storage unit, and the storage unit includes a library region in which the same file configuration as the files held by each of the servers is stored, so that the control unit of the file management server allows the library region to be stored in the storage unit. Obtaining the file identification information of the file possessed by each of the servers, generating a server-specific file identification information list in which each obtained file identification information and each server are associated, and storing the list in the storage unit; from the server-specific file identification information list for each server, the first file identification of the list Acquires information, based on the file identification information for each server obtained from the list, during the course of generating a first logical OR list including the logical sum file identification information of each file identification information, the file identification a step of acquiring the file identification information from the logical sum list of information, to determine whether the has the same meanings as defined above wherein the file identification information acquired from the server by the file identification information listed in the logical sum list, the logic The file acquired from the server-specific file identification information list in the first logical sum list when the sum list does not have the same file identification information acquired from the server-specific file identification information list Add the identification information, file management, characterized in that and a step of generating a second logical OR list Program.

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