Hitachi, Ltd.

Yohey Ishikawa

Tomohiro Kawaguchi

Hideo Saito

Keishi Tamura

Ken Tokoro

Abhishek Johri

Tomohiro Takei

A storage system capable of realizing off-load data copy among storage subsystems constituting an HA pair configuration is provided. Therefore, in an HA pair configuration where a first volume of a first storage subsystem and a second volume of a second storage subsystem respectively respond a same virtual ID to the host, when the first or the second storage subsystem receives an instruction of off-load data copy specifying a virtual ID as the copy destination from the host computer, either a first volume or a second volume is selected as a copy source volume according to a position of a copy destination volume, and data is copied from the selected copy source volume to the copy destination volume.

Storage system, storage device, and data transfer method

A storage system according to one preferred embodiment of the present invention is composed of at least a first storage subsystem and a second storage subsystem. Write data from a host computer is duplicated to a first volume of the first storage subsystem and a second volume of the second storage subsystem, and the host computer is composed to be able to access both the first volume and the second volume. Attribute information which is information related to an order of write and/or write capability is set for each volume, and when an access command to the volume is received from the host computer, the storage subsystem determines whether I/O to the first volume and/or the second volume is required or not based on the attribute set for each volume.

Method for appropriately controlling duplicated volumes in virtual volume subsystems

A job management server for managing a plurality of jobs to be executed by a virtual computer generated on a computer, a job management part to manage information on a job net which configures a plurality of jobs and allocate a plurality of jobs included in a job net to the virtual computer, and a recovery part to monitor an execution status of each of the plurality of jobs included in the job net and perform recovery processing, wherein the job management server is configured to: specify a target job for changing allocation, in a case where a failure has occurred in a first virtual computer to execute a first job included in the first job net; determine a performance of a virtual computer required to execute the target job.

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Tokyo, Japan

Yohey Ishikawa