Hitachi, Ltd.

Takato Kusama

Kei Takeda

Nobuo Beniyama

Tatsundo Aoshima

Katsutoshi Asaki

Toshiaki Matsuo

Yoshiki Fukui

Nobuhiko Ando

Masayuki Yamamoto

Nobuyuki Yamashita

Hideo Ohata

Masataka Innan

Hiroyuki Ochi

Takuya Okamoto

Takanori Sato

Tomoaki Kakeda

Atsuhito Suzuki

Junichi Hara

Masato Asami

Naoshi Maniwa

Takahiko Tomida

Naoyuki Matsunaga

Yoshitaka Tokusho

Naoki Isomura

A management computer configured to manage one or more storage apparatuses managing a plurality of resources transmits requests to the one or more storage apparatuses to, based on one or more basic information pieces for identifying the one or more storage apparatuses, acquire as a priority configuration information on, out of the plurality of resources, resources logically closer to a host computer of the one or more storage apparatuses. The management computer receives the configuration information corresponding to the requests from the one or more storage apparatuses, and incorporates the received configuration information into configuration management information for managing the configuration information on the resources managed by the one or more storage apparatuses.

Configuration information acquisition method and management computer

Computer system providing to a host computer a virtual logical volume that is associated with a logical pool configured from storage areas respectively provided by first and second storage apparatuses, and dynamically assigns a storage area from the logical volume to the virtual logical volume, a host computer and the first storage apparatus are connected via a first path configuring an access path, and, when a ratio of an access volume used by a second path connecting the first and second storage apparatuses exceeds a predetermined ratio, it is determined that a problem with the access path from the host computer to virtual logical volume, a third path connecting the host computer and the second storage apparatus is identified as a change destination of the access path, and the identified third path is changed to a part of the access path from the host computer to the virtual logical volume.

Management apparatus and management method

In the computer system, a storage system provides a storage level virtual volume based on thin provisioning technology, to a physical server on which a virtual machine is defined. The storage system releases the area of the logical volume corresponding to the storage level virtual volume accessed by a virtual machine which is specified to be deleted, on the basis of storage level virtual volume conversion information which is managed by the storage system.

Computer system, computer and method for performing thin provisioning capacity management in coordination with virtual machines

The storage management system supports planning of volume migration between different storage apparatuses. The storage management system determines source volume groups to which the source volumes belong, determines sizes of volumes to be allocated from the storage device groups to the destination pools, determines sizes of volumes to be migrated from the source volume groups to the destination pools, creates image data indicating information on the determined sizes of volumes to be allocated and the sizes of volumes to be migrated, and outputs the image data to a display device.

Storage management system

An object of the present invention is to efficiently use a hierarchical pool. A management server manages performance information of multiple host computers, and based on each performance information, determines whether a prescribed host computer, which comprises a load of equal to or larger than a preconfigured prescribed threshold, exists among the multiple host computers. The management server creates a reallocation plan, which stipulates an allocation amount of a real storage area for each of multiple storage tiers, with respect to a prescribed virtual logical volume used by the prescribed host computer. Based on the reallocation plan, the management server decides a corresponding relationship between each logical storage area and each real storage area of each storage tier, and notifies a storage apparatus of this corresponding relationship.

Computer system management apparatus and management method

The present invention is provided to make effective use of a storage area, and to enhance user usability. A management apparatus determines a reallocation destination of each logical storage area on the basis of an access load on each logical storage area by a host computer and an allocation status of each logical storage area in a storage-destination storage tier. A monitoring mode selection part for selecting any one of multiple monitoring modes selects a prescribed monitoring mode from the multiple monitoring modes on the basis of allocation time information related to a time at which each logical storage area is allocated to an allocation-destination storage tier.

Storage system management apparatus and management method

The present invention measures an actual utilization frequency of data and controls a location of this data in a storage apparatus in a case where a host computer makes joint use of a storage apparatus and a cache apparatus. A portion of data used by an application programA is stored in a storage apparatusand a cache apparatus. A management apparatusdetects an I/O load of a page (A), and detects an I/O load of cache data (B). The management apparatusdetermines a corresponding relationship between the page and the cache data (C), and adds the I/O load of the cache data to the I/O load of the page.

The present invention provides a technique capable of improving use efficiency of storage devices. In this regard, a computer system of the present invention includes: a plurality of storage subsystems; an information processing apparatus coupled to the storage subsystems and including a virtual layer for virtually providing information from the storage subsystems; and the a management system that manages the plurality of storage subsystems and the information processing apparatus. The management system manages, on a memory, configuration information of logical volumes allocated to virtual instances managed on a virtual layer of the information processing apparatus and operation information of hardware resources included in the storage subsystems. The management system evaluates use efficiency of the virtual instances based on the configuration information of the logical volumes and the operation information of the hardware resources and outputs an evaluation result.

Management system and management method for managing a plurality of storage subsystems

In a storage network including at least a computer system, at least an external storage and at least a network system for communication of input/output data between the computer system and the external storage, a method of collecting the performance data on the network system and the software operated on the network system, in which the range or degree of data collection is automatically adjusted as required based on the performance data collected.

Method and system for collecting performance data for storage network

The virtual volume is a virtual logical volume that conforms to Thin Provisioning, and is a logical volume configured from a plurality of virtual areas and used by a plurality of applications. In a case where the storage apparatus receives a write request comprising write-destination information for identifying a write-destination virtual area in the virtual volume, and, in addition, the write-destination virtual area is an unallocated virtual area, the storage apparatus selects a medium, which corresponds to the write to the write-destination virtual area and/or the identification information of the source of this write, from a plurality of media, which have different performances and which are each configured from two or more real areas, and allocates a real area from the selected medium to the write-destination virtual area.

Method for controlling data write to virtual logical volume conforming to thin provisioning, and storage apparatus

A management computer includes a communication device for communicating with a storage system and a plurality of computers. The management computer also includes a processor executing to: store relation information between the storage system and the plurality of computers; collect a plurality of computer performance information about computer-side I/O loads generated by programs on the plurality of computers, from the plurality of computers; identify a storage resource from a plurality of storage resources in the storage system; and identify at least one computer performance information from the plurality of computer performance information based on the relation information; and output the at least one computer performance information to a display. The at least one computer performance information corresponds to a certain computer-side I/O load that generates a load to the identified storage resource.

Method for analyzing performance information

According to the present invention, it is possible to rearrange an arrangement unit on an appropriate storage device at a more appropriate timing in a complex computer system. A computer system according to the present invention includes a plurality of storage devices of different performance, and provides a virtual volume, the storage devices allocating a segment of the plurality of storage areas to an arrangement unit, which constitutes the target of a virtual volume, in accordance with the arrival of a write request from the business server, and managing, on the business server, an execution time and a predicted execution time of a job to be executed, and a time at which the storage area segment was allocated to the arrangement unit, inferring the relationship of the arrangement unit and the job from the job execution time and the time at which the storage area segment was allocated, and changing the storage area segment allocated to this arrangement unit to another storage area segment at a time decided based on the specified relationship and the predicted execution time.

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Yokohama, Japan

Takato Kusama