Hitachi, Ltd.

Hitachi Vantara Corporation

Hitachi Information & Telecommunication Engineering, Ltd.

Mitsuo Hayasaka

Shimpei Nomura

Kazumasa Matsubara

Keiichi Matsuzawa

Yuto Kamo

Masanori Takata

Koji Yamasaki

Christopher J Aston

Hitoshi Kamei

Yuko Matsui

Takeru Chiba

Eiichi Inoue

Jun Nemoto

Ken Nomura

Akio Shimada

Abhishek Johri

Akira Yamamoto

Yoshihiro Yoshii

Trevor Edward Willis

Miho Kobayashi

Naomitsu Tashiro

James Gibbs

Daniel Picken

Simon Crosland

Pablo Martinez Lerin

Jonathan Smith

Soichi Watanabe

Jonathan Mark Smith

Simon Latimer Benham

Norio Shimozono

Masanori Takada

Shintaro Ito

Mutsumi Hosoya

Atsushi Sutoh

Hiroto Ebara

Akiyoshi Tsuchiya

Kazuei Hironaka

Takayuki Fukatani

Kazushi Nakagawa

Misato Yoshida

Kaiho Fukuchi

Hieuhanh Le

Tomoyuki Kodama

Yugo Yamauchi

Hieu Hanh Le

A computer system includes a backup generation management program that executes generation deletion processing of deleting backup data and a management file corresponding to M generations (M is an integer of 1 or more), when a reduction cost to be reduced by a generation deletion processing is larger than a load cost. The generation deletion processing acquires differential data of the backup data corresponding to M generations from (N+1)th generation (N is an integer of 1 or more) to (N+M)th generations. The differential data is stored in a cloud storage and the Nth generation backup data is overwritten with the differential data. The management files are merged from Nth to (N+M)th generations and the management data is associated with the Nth generation backup data. Then, the backup data and the management files from (N+1)th to (N+M)th generations are deleted.

Computer system and backup management method

The CPU of the management node measures the power consumption of a computer node while causing the computer node to execute the power measurement benchmark that uses hardware whose resource is allocated to a program to be executed by the computer node, where the CPU is changing the use amount of the resource while causing the computer node to execute the power measurement benchmark. The CPU generates a power consumption model representing a relationship between an allocation amount of the resource to be allocated to the program and the power consumption on the basis of a measurement result obtained by measuring the power consumption.

Computer and model generation method

A support device and method capable of supporting construction of an optimal secondary usage environment for data are proposed. A plurality of construction candidate plans for a secondary usage environment including a copy method for copying the data between a designated copy source site and a designated copy destination site of the data are calculated. A time and a cost required for copying the data and an operation cost of the secondary usage environment to be constructed are calculated for each of the calculated construction candidate plans, and the plurality of construction candidate plans based on a calculation result together with evaluations thereof are presented.

Support device and method

A system receives a quota request in which a tenant, one or more locations, and a capacity upper limit related to a requested quota are designated, executes conflict determination n based on quota information, and adds information related to the requested quota to the quota information when a result of the conflict determination is false. The quota information includes information representing a tenant, one or more locations, and a capacity upper limit for each quota of the plurality of storage devices at the plurality of locations. For each of the plurality of locations, a capacity usable by the tenant among a capacity of the storage device at the location is equal to or less than the capacity upper limit of the quota corresponding to the location and the tenant.

Quota management system and quota management method

When a cooperation source user name corresponding to identification information of a user included in a received request is included in a cooperation destination system user information, a cooperation destination system converts the identification information of the user included in the request into a user ID corresponding to the cooperation source user name in a cooperation destination system user information. The cooperation destination system processes the request based on the user ID and determines whether or not a cooperation source user name corresponding to the user ID is included in the cooperation destination system user information. In a case where the cooperation source user name corresponding to the user ID is included in the cooperation destination system user information, the cooperation destination system converts the user ID into a cooperation source user name corresponding to the user ID in the cooperation destination system user information.

Information processing system and log storage method for information processing system

A question answering system includes a dangerous operation determination unit configured to determine whether question-answer pair data includes a dangerous operation, and an answer sentence replacement unit configured to replace, when it is determined that the dangerous operation is included, an answer sentence including a description of the dangerous operation included in a document by a replaced answer sentence depending on a classification of the dangerous operation, to thereby create replaced question-answer pair data.

Question answering system, question answering program, and question answering method

A data management system for backing up data in a first environment to a second environment includes: backup management information in which source data, backup data, a backup method, and data backed up using the backup method are associated; and a secondary usage data copy unit serving as a secondary usage processing unit that receives a usage request for the backup data stored in the second environment, wherein the secondary usage processing unit refers to the backup management information, specifies the backup data required for processing the usage request, specifies the backup method for the backup data, restores the backup data on the basis of the specified backup method, and enables processing of the usage request.

Data management system and data management method

The present invention makes it possible to maintain availability and scale out file performance, while suppressing costs. A unified storage has a plurality of controllers and a storage apparatus (storage device unit), and each of the plurality of controllers is equipped with one or more main processors (CPU) and one or more channel adapters (FE-I/F). Each main processor causes a block storage control program to operate and thereby process data inputted to and outputted from the storage apparatus, each channel adapter has a processor (CPU) that performs transmission and reception to and from a main processor after receiving an access request, and the processors in the plurality of channel adapters cooperate to cause a distributed file system to operate, and distributively store data, written as a file, to the plurality of controllers.

Unified storage and method of controlling unified storage

In a management node that controls the amount of hardware resources of storage nodes to be allocated to the software of distributed data stores executed by storage nodes, the management node includes a disk device that stores a performance model indicating the correspondence relationship between the amount of hardware resources and the performance that can be implemented by the hardware of the resource amount, and a central processing unit (CPU) connected to the disk device, in which the CPU receives the target performance by distributed data stores, determines the hardware resource amount required to achieve the target performance based on the performance model, and sets to allocate hardware of the determined resource amount to the programs of the distributed data stores.

Resource allocation control based on performance-resource relationship

In a computer system including a distributed file system cluster and a block SDS cluster, the distributed file system cluster has a plurality of distributed file system nodes, and stores a management-subject file redundantly in a plurality of volumes managed by a plurality of distributed file system nodes, the block SDS cluster has a plurality of block SDS nodes, and provides a plurality of the volumes on the basis of storage regions of storage apparatuses of the block SDS nodes, and a CPU of a management server is configured to perform control such that a plurality of the volumes storing the file in the distributed file system cluster for redundancy are not volumes based on a storage region of a storage apparatus of one block SDS node.

Rebalancing volumes in computer system comprising upper and lower cluster

To provide a sentence data management method and a sentence data management system in which sentence data and a provision of a regulation are associated and a risk of legal violation associated with outbound transmission of the sentence data is reduced. A sentence data management system includes a processor configured to convert a word string of a first document described using a first term into a word string described using a third term; convert a word string of an outbound-transmitted second document described using a second term into a word string described using the third term; compare the first document and the second document by using a comparison result between the word string and the word string as a comparison result between the word string and the word string; and check a possibility of violation to the regulation in outbound transmission to determine the outbound transmission of the second document.

Method and system for restricting transmission of sensitive information contained in a document

Provided is a storage system capable of properly deleting derivative data stored at a plurality of sites. A CPU executes a creation process of creating data based on data stored in a storage device at a local site and storing the created data in the storage device of a node at one of the plurality of sites. Further, the CPU collects, from each of the plurality of sites, history information created at each of the plurality of sites to indicate the history of each creation process. When deleting deletion-specified data, the CPU identifies deletion derivative data according to the history information created at each of the plurality of sites, and deletes the deletion-specified data and the deletion derivative data from the storage device at each of the plurality of sites. The deletion derivative data is derivative data derived from the deletion-specified data.

Storage system and data deletion method

An information processing system including Application Platform capable of communicating with Edge1 connected to each other to be able to communicate each other, in which Application Platform includes a second processor, information on microservices and data possessed by Edge1, and performance information describing the performance of Edge1, and the second processor uses predetermined data to combine a plurality of predetermined microservices and causes Edge1 to execute them in a predetermined order. When executing the application, microservices and data are moved between Edge1 based on the information of the microservices and the data possessed by Edge1, and the performance information.

Information processing system and application services distribution method in information processing system

In a management node that manages a distributed file and object storage that accessibly manages a file used by an application, the distributed file and object storage is accessible to a file managed by a storage of another site, and a management node includes a processor, and the processor is configured to specify an access circumstance relating to a file by an application, and control caching by the distributed file and object storage of the own site with respect to the file managed by the storage of the other site used by the application, before the application is executed, based on the access circumstance.

Data control device, storage system, and data control method

A computer system stores management information that manages a workflow and a deletion flag that indicates deletion of data in the workflow hidden from a user. The computer system executes a workflow that includes one or more processes that convert input data into output data. The computer system includes a lineage of the executed workflow including information of the input data and the output data in the management information. The computer system deletes data selected from data in the executed workflow, and sets the deletion flag of the selected data in the management information. The computer system, in response to an access to first data to which the deletion flag is set, regenerate the first data based on the management information and removes the deletion flag of the first data in the management information.

Computer system and method for managing data of an executed workflow

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Tokyo, Japan

Mitsuo Hayasaka