Hitachi, Ltd.

Shinichiro Kanno

Hirokazu Ikeda

Yuki Naganuma

Toshimichi Kishimoto

Nobuhiro Maki

Masayasu Asano

Hironori Emaru

Nobuyuki Osaki

Koichi Murayama

Akira Yamamoto

Wataru Okada

Shun Kameoka

Ryosuke Yabu

Shunsuke Nakayama

Akihito Miyazawa

A first virtual parity group management table that associates first virtual parity group management information with second virtual parity group management information using physical disk management information is created and memorized in a first sharable memory section, a second virtual parity group management table that associates logical device information, third virtual parity group management information that sets the second virtual parity group management information to virtual parity group management information regarding its own storage system, and fourth virtual parity group management information that sets the first virtual parity group management information to virtual parity group management information regarding the non-own storage system with one another is created and memorized in a second sharable memory section, and migration of a physical disk is accepted on the condition that these tables are memorized.

Storage system and migration method of storage system

A storage apparatus includes: a plurality of controllers, each of which has a plurality of processors for processing requests; a storage device coupled to the controller; an integration unit that integrally controls the plurality of controllers; and a shared memory that can be accessed from each processor for the plurality of controllers and stores configuration information of the storage apparatus including load information of each processor. The integration unit: calculates estimated processing time of a configuration management request, which has been accepted from a management apparatus, from a request type and a target resource type of the configuration management request; and distributes the configuration management request to a plurality of distribution requests on the basis of the load information of each processor acquired from the shared memory and the estimated processing time, determines a distribution destination processor for processing each of the plurality of distribution requests.

Storage apparatus and configuration management request processing method for storage apparatus

Key information that is currently in use is archived in a management server to prevent the key information from being lost. A storage deviceis communicatably connected to a management servermanaging key information. The storage device includes a memory device, and a controllercontrolling the memory device. The controller implements encryption processing on data inputted and outputted to and from the memory device by using the key information. When stoppage of an operation is indicated, the controller determines whether the key information used by the controller is managed by the management server, stops the operation in a case where the key information is managed by the management server, and does not stop the operation in a case where the key information is determined not to be managed by the management server.

Storage device and control method for storage device

In a storage system, a storage apparatus A having a first poolincluding segments as unit storage areas and a storage apparatus B having a second poolhaving the same configuration are communicably connected to each other. In the storage system, an external volume identifier is associated with a logical volumeincluded in the first pool, the external volume identifier being used by a controllerin the storage apparatus B to identify and manage the logical volumeas an external volumethat is a virtual volume in the storage apparatus B. Moreover, a volume identifierof the logical volumeincluded in the first poolis rewritten into the external volume identifier in order to enable the storage apparatus B to utilize the logical volumecreated from the first pool

Storage system and method for efficiently utilizing storage capacity within a storage system

A storage apparatus coupled to a host device comprises a virtual volume which is a virtual logical volume configured of multiple virtual areas and a pool configured of multiple actual area groups of different performances. A controller manages pool status information which is the information showing which actual area is allocated to which virtual area and access load related to the virtual areas. A management system of the storage apparatus, with reference to the pool status information at multiple points of time from past to present and an access load threshold which is equal to or larger than 1, estimates the used capacity of each actual area group at points of time in the future, calculates the installed/removed amount of each actual area group which is the difference between the estimated used capacity and the current storage capacity, and performs the processing based on the calculated result.

Management system calculating storage capacity to be installed/removed

A storage system comprises multiple first storage apparatuses, and a controller which provides a first logical volume corresponding to a storage area of the multiple first storage apparatuses to a host computer. The controller partitions a storage area corresponding to the first logical volume into multiple first physical storage areas, manages the partitioned multiple first physical storage areas as physical storage areas of a storage pool, creates a first virtual volume which is provided to the host computer, and associates, from among the multiple first physical storage areas, a physical storage area in which user data is stored, with the first virtual volume.

Storage system and management method therefor

Events which have occurred in storage systems can be managed easily regardless of complexity of a storage configuration. An event notification systemincludes: an event notifying clientfor detecting the occurrence of an event(s) in volumes of a storage system; a management application serverfor storing information about the occurred event as setting/failure information; and an event information aggregation serverfor creating and managing event informationincluding an event keyfor associating the occurred event with the setting/failure information. When the event information aggregation serverin such an event notification systemnotifies an administrator terminalof the event keyand an administrator selects the event key, the management application serverhas the administrator terminaldisplay an event browse screenindicating the relativity of a volume, in which the event occurred, to a volume in which a related event occurred.

Event notification system, event information aggregation server, and event notification method

A storage cluster including a first storage apparatus and a second storage apparatus is defined. Communication between the first storage apparatus and the second storage apparatus uses a first network and an access request from a host computer uses a second network. Each of the first and second storage apparatuses defines internal LUs by using storage devices included in that storage apparatus. The first storage apparatus defines other internal LUs by using internal LUs of the second storage apparatus and the second storage apparatus defines other internal LUs by using internal LUs of the first storage apparatus.

Cluster storage setting method, system, and management system

Proposed are a highly reliable storage system capable of inhibiting the problematic operation or change of state in the storage system, and a known problem information management method capable of improving the reliability of the storage system. The storage system is provided with a storage apparatus including a storage medium for storing data, and a management apparatus for managing the storage apparatus. The management apparatus includes an apparatus-side known problem information storage unit for storing known problem information as information concerning a problematic operation or a change of state, a maintenance management terminal operation controller for receiving a user's operation or change of state and creating history information according to the operation or change of state, and an apparatus-side known problem information search unit for searching, from the apparatus-side known problem information storage unit, known problem information corresponding to the history information, wherein the maintenance management terminal operation controller inhibits the operation of the searched known problem information.

Storage system and known problem information management method

An object of the present invention is to prevent data from being tampered with, and to prevent operation mistakes, when sending and receiving data between a management software managing storage devices. Encrypting predetermined information by using a first key managed by a first manager when temporarily keeping the predetermined information in a data holding unit; decrypting the predetermined information encrypted with a second key kept in a storage device managed by a second storage manager when moving the encrypted predetermined information to the second storage manager; and arranging the predetermined information in the second manager based on the decryption result.

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Odawara, Japan

Shinichiro Kanno