Abstract: In order to mitigate a load in communications among an integrated search server, a plurality of search users and a plurality of search servers in an integrated search system, in the present invention, when an integrated search is executed, first, information for narrowing down the search servers is obtained from each search server, and subsequently, the search servers are narrowed down based on this information, and search results are obtained from only the search servers which have been narrowed down. Thereby, there are advantageous effects of reducing memory usage of the integrated search server, and reducing unnecessary network traffic between the integrated search server and each search server.

Abstract: A storage system 103 carries out first and second de-duplication processes in response to receiving a write request from a client. First, a determination is made as to whether a write target data item overlaps with any of the stored data items of a part of a stored data item group, which is a user data item group stored in a storage device 209, and if so, the write target data item is prevented from being stored in the storage device. Second, a determination is made as to whether a target stored data item, which is not finished being evaluated as to whether it overlaps with the stored data item in the first de-duplication process, overlaps with another stored data item, and if so, the target stored data item or the same data item overlapping with the target stored data item is deleted from the storage device 209.

Abstract: The client computer which transmits an access request specifying an object existing in the first file system and the second computer which accesses the second file system are connected to the first computer which accesses the first file system. The second file system includes a shared directory. A specific object which is an object complying with the path name including the name determined in accordance with the type of the second computer is stored in the shared directory. The controller mounts the shared directory to the first file system. The controller creates a link which comprises a name determined in accordance with a certain naming regulation independent of the type of the computer and corresponds to the specific object in the first file system.

Abstract: Provided is a technique that can control a federated search apparatus to prevent transmission of access account information, which is not necessary to carry out security trimming, to search servers in the execution of federated search. The federated search apparatus according to the present invention includes an account correspondence table describing a correspondence between a first access account that issues a first search request for requesting federated search and second access accounts that issue a second search request to the search apparatuses. The federated search apparatus specifies the second access account corresponding to the first access account in accordance with the description of the account correspondence table, designates, as a search condition, a range that can be accessed by the second access account, and issues the second search request to the search servers.

Abstract: Appropriate control is performed for data blocks and data block groups in a file. A file system having various functions provides an upper program with an interface for changing size, storage position and processing method in each function of extents being data block management units in a file. The file system can improve the effects aimed by the respective functions by implementing the extent configuration and processing optimized for the various functions of the file system, based on the instruction from the upper program.

Abstract: In a computer system according to an embodiment of the present invention, a first slave server includes copy management information associating a master file system identifier with an identifier of a slave server including a copy of the master file system identified by the master file system identifier. The first slave server acquires a copy of a part of a master file system. The copy includes a stub-state object (file or directory). The first slave server searches the copy management information for a slave server to be queried regarding information for materializing the stub-state object. If the slave server to be queried includes the information for materialization, the first slave server materializes the stub-state object using the information for materialization acquired from the queried slave server.

Abstract: The file synchronization processing among sites which can reduce the response time is realized. By the CAS device creating a list of at least a part of the file groups which the first sub-computer system archived or backed up to the data center as an update list and transferring the update list to the second sub-computer system, the second sub-computer system determines whether the file is valid or not by using the update list (See FIG. 2).

Abstract: A storage system 103 carries out first and second de-duplication processes in response to receiving a write request from a client. First, a determination is made as to whether a write target data item overlaps with any of the stored data items of a part of a stored data item group, which is a user data item group stored in a storage device 209, and if so, the write target data item is prevented from being stored in the storage device. Second, a determination is made as to whether a target stored data item, which is not finished being evaluated as to whether it overlaps with the stored data item in the first de-duplication process, overlaps with another stored data item, and if so, the target stored data item or the same data item overlapping with the target stored data item is deleted from the storage device 209.

Abstract: Capacity limitations on virtual volumes are set easily. A storage apparatus is connected via a network to a plurality of host computers requesting data writing. The storage apparatus includes: a volume creation unit for creating virtual volumes to be accessed by the host computers; an allocation unit for allocating a storage area of the storage apparatus to a data storage area of the virtual volumes in response to a data write request from the host computers; and a capacity management unit for managing the capacity of data written from the host computers; wherein the capacity management unit adds the data written from the host computers with regard to each host computer and judges whether a total value of the added data exceeds a specified threshold or not.

Abstract: An information processing service is allowed to be immediately recovered from failure without clustering information apparatuses that provide an information processing service.

Abstract: A file server performs duplicate elimination on files, and creates a virtual file system that does not include a duplicate file and is used for creating a search index. A search server acquires search target files from the virtual file system in the file server, and creates the search index.

Abstract: Provided is a controller in a computer system, the computer system including a plurality of data storage systems, and at least one controller for controlling access to data stored in the plurality of data storage systems, the each controller including: an interface coupled to the network; a processor coupled to the interface; and a storage unit coupled to the processor, in which: the storage unit holds attribute information indicating whether to permit access to the data; and the processor is configured to: receive a writing request of the data from a client computer coupled to the network; judge whether each of the each controller permits the requested writing based on the held attribute information and information of a location where the each controller is installed; and write the data in a data storage system controlled by a controller judged to permit the writing.

Abstract: An integrated search process on files can be executed by multiple search devices even if setting granularities of access control to the files are different among the search devices. Upon execution of file migration or access control information batch update, information needed for a search server to execute security trimming is extracted from ACL information in a specific format on a document management server. Then the extracted information is transferred to the search server, converted to ACL information in a general format, and registered in a search index in the search server. With this process, a storage system using different access control methods is configured to perform the security trimming based on the ACL information with which access control having the finest setting granularity can be set.

Abstract: A file server stores the storage management information and migration policy information. The storage management information includes the information that indicates a storage attribute for each storage apparatus. The migration policy information includes a plurality of information sets. Each of the information sets includes the information that indicates a condition of a file attribute and the information that indicates a condition of a storage attribute of a storage apparatus that is a migration destination. The file server specifies a migration target file, specifies a storage apparatus that conforms to the storage attribute condition that is indicated by the information set that includes the information that indicates a condition of a file attribute that conforms to of a file attribute of a target file based on the storage management information, and migrates a target file from a storage apparatus that has stored the target file to the storage apparatus that has been specified.

Abstract: In order to mitigate a load in communications among an integrated search server, a plurality of search users and a plurality of search servers in an integrated search system, in the present invention, when an integrated search is executed, first, information for narrowing down the search servers is obtained from each search server, and subsequently, the search servers are narrowed down based on this information, and search results are obtained from only the search servers which have been narrowed down. Thereby, there are advantageous effects of reducing memory usage of the integrated search server, and reducing unnecessary network traffic between the integrated search server and each search server.

Abstract: First, a duplicate elimination process based on a first duplicate elimination process, in which both a duplicate elimination effect and a processing load are low, is executed. Information related to a processing result of the duplicate elimination process based on the first duplicate elimination process is acquired prior to execution of a second duplicate elimination process, in which both the duplicate elimination effect and the processing load are high. Target data of the second duplicate elimination process is narrowed down based on the acquired information. The second duplicate elimination process is applied only to the narrowed down target data. As a result, an integrated duplicate elimination system with a lower processing load than in a conventional system is realized while attaining a high duplicate elimination effect.

Abstract: In a system in which multiple independent search servers are loosely coupled, a duplicate entry is detected and eliminated from search results sent from the respective search servers with respect to the same search condition. An integrated search control part of the search server, upon receiving an integrated search request, determines a hash algorithm to be used in common by the respective search servers. Each search control part responds to the integrated search control part by adding a hash value, based on this hash algorithm, to the search result. The integrated search control part detects and eliminates a duplicate entry on the basis of the hash value.

Abstract: A storage system 103 carries out first and second de-duplication processes in response to receiving a write request from a client. First, a determination is made as to whether a write target data item overlaps with any of the stored data items of a part of a stored data item group, which is a user data item group stored in a storage device 209, and if so, the write target data item is prevented from being stored in the storage device. Second, a determination is made as to whether a target stored data item, which is not finished being evaluated as to whether it overlaps with the stored data item in the first de-duplication process, overlaps with another stored data item, and if so, the target stored data item or the same data item overlapping with the target stored data item is deleted from the storage device 209.

Abstract: A WEB service providing server can execute WEB service processing using data provided by an online storage service providing server, and leaking of data at the WEB service providing server can be prevented. A WEB service providing server 102 requests, in response to a service request from a client terminal 100, that an online storage service providing server 101 provides data that will satisfy the service request. The online storage service providing server 101 extracts content data from storage devices, encrypts the extracted content data, and provides the WEB service providing server 102 with storage service data composed of data including the encrypted content data and metadata. The WEB service providing server 102 constructs a WEB service screen according to the metadata and provides the client terminal 100 with the constructed WEB service screen.

Abstract: Providing an information processing apparatus and information processing method that prevent the occurrence of inconsistencies between restored files and other files, thereby improving ease of use. When restoring a backup virtual tree, the owner of each file and directory belonging to the backup virtual tree is identified; and when it is found, based on the identification result, that the owner of any of the files or directories is not a target user and the update time and/or version of the backup file or directory is older than that of the corresponding present file or directory, the backup file or directory is restored back into a special directory accessible for the target user with the tree structure of the original virtual tree intact.