Hitachi, Ltd.

Microcomputer Engineering Ltd.

Masafumi Nozawa

Akira Yamamoto

Hiroyuki Kitajima

Akira Kurano

Kyosuke Achiwa

Toshio Nakano

Akinobu Shimada

Yasunori Kaneda

Eiichi Sato

Ryoji Furuhashi

Naoto Matsunami

Masaaki Iwasaki

Yoshihiro Asaka

Koji Sonoda

Hideo Tabuchi

Shigeo Homma

Yoshiaki Kuwahara

Michio Miyazaki

Kiyoshi Hisano

Akihito Ogino

Akihiko Togawa

Takashi Oeda

Kazuo Takaragi

Takao Satoh

Katsunori Nakamura

Noboru Morishita

Kiyohiro Obara

Shinichi Kawada

Shigeo Honma

Kazuo Nakagoshi

Hisashi Takamatsu

Yoshihiro Moribe

Kazuhisa Shiraishi

Takashi Doi

Yasuhiro Ishii

Yoshiro Shiroyanagi

Tetsuhiko Fujii

Kosaku Kambayashi

Hirotsugu Yamagata

Toshiaki Tsuboi

Tokuhiro Tsukiyama

Masayuki Hoshino

Takafumi Oka

Fujio Fujita

Tomoki Shoji

Akira Chuma

Toshifumi Nishimura

Katsuharu Kakuse

Hitoshi Fukuguchi

Kiyoshi Yata

Hideo Maekawa

Takikazu Takeuchi

Toshiki Kamohara

Yasushi Kuba

Takayuki Kashima

In an information processing system including a computer device, and a storage device storing data used by the computer device, the region in which the data is held is managed in association with a change, over the passage of time in the performance and availability required of the data holding region. The computer device includes a storage device managing unit for managing the storage device which stores data used by the computer device. The storage device managing unit periodically monitors temporal characteristics information, and moves data, if the storage region having functional characteristics corresponding to the temporal characteristics information is different from the storage region to which the data is currently assigned.

Information processing system and management device for managing relocation of data based on a change in the characteristics of the data over time

A storage device is provided with a file I/O interface control device and a plurality of disk pools. The file I/O interface control device sets one of a plurality of storage hierarchies defining storage classes, respectively, for each of LUs within the disk pools, thereby forming a file system in each of the LUs. The file I/O interface control device migrates at least one of the files from one of the LUs to another one of the LUs of an optimal storage class, based on static properties and dynamic properties of each file.

Storage device

A technique that can efficiently achieve migration of a configuration and data between storage units with varying constructions of configuration information and that can alleviate burdens of personal operation by an administrator, etc. With the configuration information of each storage unit controlled by the storage control server, based on each piece of configuration information, the transfer-source configuration information is converted into information necessary for establishing the logical partition configuration of a storage unit which has the transfer-destination logical partition function. The information prepared by the conversion is transmitted to the transfer-destination storage unit and the configuration with the transfer-source logical configuration set as the transfer-destination logical partition is updated in the transfer-destination storage unit. After the migration of the configuration, the data is migrated using a remote copy function of carrying out data copy between the transfer-source and transfer-destination logical devices.

Logical partition conversion for migration between storage units

Provided is a computer system having a host computer that requests the input and output of data in and from an actual storage volume, and a plurality of storage subsystems respectively having at least one or more virtual storage volumes. The virtual storage volumes of each of the plurality of storage subsystems are virtualizations of a common external volume. The host computer sets a certain logical path among a plurality of logical paths to be respectively connected to a plurality of virtual storage volumes formed by virtualizing the common external volume as an alternate path of another logical path.

Storage system and load balancing method thereof

This storage system collectively manages a plurality of types of file groups reaching storage time limit, and carries out data migration spanning a plurality of storage devices. Based on the respective file information, of the respective files distributed among the respective volumes, files, whose storage time limit arrives within a prescribed period of time, are grouped together as a migration group. The storage term of the group is made to coincide with the file having the most distant storage time limit of the respective files. A first migration is carried out on the basis of the priority of the respective storage devices. A second migration is executed on the basis of the device life of the respective storage devices and the storage term of the group.

Storage system and storage system data migration method

A method for displaying an access path between a virtual volume of a storage controller that has an external storage connecting function, and an external volume of an external storage system. By this method, port connection information about an access path defined between the virtual volume and the external volume is collected. A first network address for identifying an access port of the storage controller on the access path is collected. Also, a second network address for identifying an access port of the external storage system on the access path is collected. Moreover, identification information for identifying the external volume is collected. Finally, the network topology between the virtual volume and the external volume is displayed based on the port connection information, the first network address, the second network address, and the identification information.

Network topology display method, management server, and computer program product

A method for grouping a plurality of storage resources provided by a storage system into storage groups. Storage management software obtains storage resource configuration information set for each of a number of logical partitions in the storage system and groups the storage resources into storage groups such that the storage resource group configuration individually set for the logical partitions in the storage system matches the group configuration of the storage resources constituting the storage groups.

Storage management computer program product and grouping method for storage groups

There is provided a technique in which such a configuration as to include storage apparatuses on a plurality of sites can reduce a burden of operation/management of backup of data stored in the storage apparatuses. The configuration includes a information processing system on each site to be a backup target, and an information processing system for executing a backup process. Through control of a management server and a process for a backup server at a backup execution point, backup data of the data stored in the storage apparatus of the information processing system is converged into the storage apparatuses of the information processing systems by a process using a remote copying function and stored in the backup device. Then, instructions are given from the management server to the respective sites with synchronized timing, and convergence and storage of said backup data are executed by obtaining a temporal synchronization.

storage system

An asynchronous remote copy system which can ensure the data renewal order and data integrity of the disk subsystems. The system provides for data mirroring by a main center having a gateway and a remote center having a gateway, and storage systems in each center connected to the corresponding gateway. Data is mirrored through synchronous type remote copy between volumes of the storage systems of each center. The gateway of the main center sends the renewal data to the gateway of the remote center in accordance with the order of renewal of volumes, to make the gateway of the remote center reflect the renewal data upon the volumes thereof through asynchronous type remote copy.

Disk subsystems and their integrated system

Growing community of inventors

Odawara, Japan

Masafumi Nozawa