Hitachi, Ltd.

Hitachi Solutions, Ltd.

Shoji Kodama

Koji Nagata

Ikuya Yagisawa

Akira Yamamoto

Masaaki Iwasaki

Katsuo Mogi

Naoko Iwami

Kiyotake Kumazawa

Yohsuke Ishii

Kenji Yamagami

Yusuke Nonaka

Yasuyuki Mimatsu

Naoki Watanabe

Nobumitsu Takaoka

Yoshiaki Eguchi

Yoshinori Ohira

Kenta Shiga

Takashi Amano

Atsuo Kawaguchi

Wujuan Lin

Kazuhito Yokoi

Masayuki Yamamoto

Junji Ogawa

Manabu Kitamura

Yuichi Taguchi

Yoshiki Kano

Masakuni Agetsuma

Yuichi Yagawa

Hitoshi Kamei

Yasuo Watanabe

Yasushi Nagai

Akira Nishimoto

Tetsuya Shirogane

Masanori Takata

Naoki Utsunomiya

Tetsuya Uemura

Hiroaki Odawara

Yasushi Miyata

Hirotaka Moribe

Go Kojima

Yukiko Homma

Lin Wujuan

Naoko Iwama

When plural processing programs for generating post-processing data which is a source of services to be provided are present, a relationship between post-processing data and a data group which is a source of the post-processing data is managed. The processing units acquire pre-processing data, execute given processing, and generate post-processing data as a result of the processing. At an opportunity to acquire the pre-processing data, a process ID indicative of ordering of the acquisition, and not updated before and after the given processing is allocated to acquired pre-processing data. The generated post-processing data is stored, and in extracting the post-processing data satisfying the given data search condition, the post-processing data having a process ID equal to or before the process ID that is latest in the post-processing data and oldest among the respective processing units is extracted from the post-processing data that satisfies the data search condition.

Computer system, data management method, and recording medium storing program

A search device receives a search request, extracts at least one of an alias or a metadata name from the search request, converts the alias to metadata name by referring to metadata schema management information for managing in an inclusive manner a namespace alias and a metadata name for the retrieval device to identify a metadata schema definition defining the structure of a retrieval-target file that includes metadata, and specifies a field name from the metadata name by referring to schema mapping management information for managing the corresponding relationship between a metadata name of metadata schema definition information and a field name of the retrieval index schema definition.

Retrieval device, method for controlling retrieval device, and recording medium

The server device includes: an allocation unit for allocating a unique identifier to each of first data and second data; a management unit for managing a correspondence between the identifier and a method for accessing the first data or second data identified by the identifier; a presentation unit for presenting the identifier managed by the management unit to the client device; a conversion unit for converting an identifier-specifying request for access to the first data or second data from the client device into a method for accessing the first data or second data corresponding to the identifier using an access method associated by the management unit with the identifier; and a data access unit for requesting access to the first data or second data using the access method converted to by the conversion unit, and sending an access result to the client device.

Information processing system and data management method

A search server for which data stored in a hierarchical control server utilizing a plurality of storage devices is the object of a search, wherein the search server is designed to update a search index to data while the data exists in an upper-hierarchy storage of the hierarchical control server. Included in a computer system are: a storage unit for storing the usage status of an upper-hierarchy storage area of a hierarchical storage having the upper-hierarchy storage area and a lower-hierarchy storage area; and a determination unit for determining, according to the stored usage status, which process should be given priority between an indexing process for data that is an index-updating candidate among data stored in the hierarchical storage, or a migration process for moving the data to the lower-hierarchy storage area.

Computer system, data management method, and recording medium for storing program

A first storage apparatus determines whether to execute bulk requesting of causing a second storage apparatus to group a plurality of actual files corresponding to a plurality of stub files into one bulk data and transmit the bulk data. When determining to execute the bulk requesting in the determination, the first storage apparatus transmits a bulk request to the second storage apparatus. The second storage apparatus that has received the bulk request groups a plurality of actual files into one bulk data based on the bulk request, and transmits the bulk request to the first storage apparatus. The first storage apparatus that has received the bulk data extracts the plurality of actual files corresponding to a plurality of stub files, from the bulk data.

Storage system and storage method

A computer system, comprising: a file server; a metadata server; and a business server, the metadata server being coupled to a storage apparatus for providing a save area for storing at least one file that is removed from the file server, the metadata server storing a metadata repository for managing metadata of a file and the files stored in the save area, the metadata server being configured to: store a file as a saved file in the save area, in a case of detecting that the file stored in the file server is to be removed; and store information indicating a location of the file in the file server and information indicating the location of the saved file in the save area in association with each other in the metadata repository.

Computer system, file management method and metadata server

If a failure occurs in physical resources constituting a virtual volume, a management server device is notified of information required by a user. A computer system includes a server device for managing a plurality of virtual volumes, a storage apparatus having a storage unit equipped with a plurality of storage devices, and a controller for controlling data input to, or output from, the storage unit, a management server device which is an access target of a user terminal, and an event management device for managing an event(s) generated by the server device or the storage apparatus, wherein when the event management device receives the event, it judges the content of the event and identifies a virtual volume to be affected by the event; and if a service level that should be satisfied by the identified virtual volume is defined for the identified virtual volume, the event management device identifies, based on the content of the received event, whether an incident in violation of the service level has occurred or not, and then notifies the management server device of the identified content as an event based on an event filter.

Computer system and its event notification method

A progress status management system comprises a management target system configured to execute a series of processes to the file, which includes a plurality of process units configured to execute a process to a file, and a progress status management unit configured to manage a progress status of a process executed by the process unit included at the management target system. The progress status management unit, in a case of acquiring the first identification information of a file in a first process unit, acquires the first identification information of the file in the second process unit, and links the acquired first identification information in the first process unit and the acquired first identification information in the second process unit to the same second identification information.

Progress status management system and progress status management method

A first storage system includes a first storage unit to provide storage volumes, a first storage controller, and a first memory to store a first control program to process an input/output request received by the first storage system. A second storage system includes a second storage unit to provide storage volumes, a second storage controller, and a second memory to store a second control program to process an input/output request received by the second storage system. Each of the first and second storage systems is configured to present the storage volumes of the other storage system to the host computer, so that the host computer can access the storage volumes of each of the first and second storage systems via one of the first and second storage systems if the host computer is unable to access the storage volumes via the other storage system.

Clustered storage system with external storage systems

Provided are a content transfer system, a content transfer method, and a home server capable of backing up all backup target contents without having to transfer all backup target contents. This content transfer system includes a home storage and an online storage. The home storage transfers identifying information of a backup target content to the online storage and requests the online storage to determine the existence of a content that is identical to the backup target content upon requesting the online storage to back up the backup target content, transfers metadata to the online storage when an identical content exists in the online storage, and transfers the backup target content to the online storage in all other cases.

Content transfer system, content transfer method and home server

Provided is a storage center including a storage subsystem for storing content data to be used by the user's home server, and a center server for controlling the storage subsystem. The center server aggregates the content recording reservation requests sent from several home servers, obtains content data from a content server and stores the content data in the storage subsystem at a designated recording start time, and notifies the user's home server that the recording reservation is complete.

Storage system and data management method in storage system

This storage controller providing a volume for storing data transmitted from a host system includes a management unit for managing the data written in the volume with a first block area, or a second block area in the first block area which is smaller than the first block area; a snapshot acquisition unit for acquiring a snapshot of the volume at a prescribed timing; and a transfer unit for transferring the data of the volume acquired with the snapshot of the snapshot acquisition unit to an external device with the first block area or the second block area.

Storage controller and data management method

The performance of the analysis system is deteriorated because file content extraction processing is performed in the file aggregation server and in the analysis server and further because annotation data creation is performed in the file aggregation server. Therefore, the present invention solves the problem by providing a file aggregation server classifying files into analysis target contents, non analysis target contents, and content matched data, and providing only the analysis target contents to the analysis server. Since this method enables the analysis server to acquire the analysis target contents directly from the file aggregation server, the processing of extracting contents from the files becomes unnecessary, and the throughput of the entire analysis system is improved.

File aggregation method and information processing system using the same

The present invention enables a unified way of accessing files generated by application programs configured to store contents in files in different formats, without using a conversion program. A database for holding correspondence between an identifier of a content and a storage position of the content is generated based on a backup catalog generated by a backup server, and contents are accessed by using this database. Contents generated by a plurality of different application programs are accessed in a unified way using a single name space.

Information apparatus

Growing community of inventors

Sagamihara, Japan

Shoji Kodama