Hitachi, Ltd.

Bandai Namco Games Inc.

Yoshihito Nakagawa

Satoru Ozaki

Keishi Tamura

Kiichiro Urabe

Hisao Homma

Takashi Nakagawa

Yutaka Takata

Hiroshi Ogasawara

Toshiomi Moriki

Takashi Ochi

Keisuke Yoshida

Shinichi Nakayama

Katsuhiro Okumoto

Katsuhiro Uchiumi

Shizuo Yokohata

Haruaki Watanabe

Hisao Honma

Yasuyuki Nagasoe

Isamu Kurokawa

Takashi Noda

Shoji Sugino

Norimitsu Hayakawa

Itaru Isobe

Takashi Shimojo

Ryu Takada

Masatoshi Konagaya

Shogo Ito

Yoshihisa Honda

The storage system of the present invention is able to generate one virtual logical device from different logical devices which exist in each of the different storage control units and remote-copy all or part of the virtual logical device to another logical device. The same virtual identifier is set for a volume of the first storage unit and for a volume of the second storage unit. The path control unit of the host identifies a plurality of volumes which have the same virtual identifier as one virtual volume. A remote copy pair can also be set by a virtual volume and a volume of the third storage unit. The setting of the virtual volume and the setting of the remote copy can be performed by means of an instruction from the management server.

Storage system and virtualization method

A computer system comprising a plurality of computers on which a plurality of operating systems run, wherein a memory stores a first hardware control unit, wherein a storage device stores a first OS image, a second OS image, a second hardware control unit for executing start processing of the second OS, and an address rewrite unit, wherein the second hardware control unit includes a start unit for starting the second hardware control unit, wherein the address rewrite unit which is started by the first OS is configured to: obtain an address of a storage area, in which address data to be rewritten is stored, as a target address, rewrite the address data stored in the storage area corresponding to the obtained target address and start the start unit, wherein the start unit is configured to start the second hardware control unit by using the rewritten address data.

Computer system and startup method

When a cube has been selected, and a touch operation has been canceled, a retouch determination area that is larger than the original selection area for selecting the cube is set based on a touch cancellation position. When a retouch operation has been detected within the retouch determination area after the touch operation has been canceled, it is determined that the same position as the touch cancellation position has been retouched, and the cube (object) is moved.

Method for controlling computer that is held and operated by user using a re-touch determination area

A storage apparatus has a channel board; a drive board; a cache memory; a plurality of processor boardsthat transfer data; and a shared memory. The channel boardstores a frame transfer tablecontaining information indicative of correspondence between a LDEVand each of the processor boards, set in accordance with a right of ownership that is a right of access to the LDEV. The processor boardsstore LDEV control informationin a local memory, which is referred to by the processor board at the time of access. The channel boardtransfers a data frame that forms the received data I/O request, to one of the processor boardscorresponding to the LDEVspecified from the information contained in the frame by using the frame transfer table

Storage apparatus and method for controlling storage apparatus

Proposed is a storage system capable of preventing the compression of a cache memory caused by data remaining in a cache memory of a storage subsystem without being transferred to a storage area of an external storage, and maintaining favorable I/O processing performance of the storage subsystem. In this storage system where an external storage is connected to the storage subsystem and the storage subsystem provides a storage area of the external storage as its own storage area, provided is a volume for saving dirty data remaining in a cache memory of the storage subsystem without being transferred to the external volume. The storage system recognizes the compression of the cache memory, and eliminates the overload of the cache memory by saving dirty data in a save volume.

Storage system, storage subsystem and storage control method

A storage control system is provided where a first host system connected to a first storage controller can issue a control command to a second storage controller connected another host system. The first storage controller is connected to the second storage controller and the command is issued without providing the command to the other host system. The first storage controller has a virtual volume, a memory unit for storing information necessary for mapping the virtual volume to a logical device in the second storage controller, and attribute information for the logical device. The host system identifies the virtual volume as the logical device in the second storage controller and issues a control command to this logical device via the virtual volume.

Storage control system

A virtualization system, including: at least one first port coupled to at least one host system; at least one second port coupled to a plurality of storage systems; wherein the virtualization system is capable to control to perform processes of splitting a relationship between the first virtual volume and the second virtual volume; storing first differential information identifying data of a first write request; write data of first write request to a storage area of the disk drives related to the first logical volume; storing second differential information identifying data of a second write request, the data of the second request being written after the splitting step, receiving a differential copying request; to copy differential data from the first virtual volume to the second virtual volume, or to copy differential data from the second virtual volume to the first virtual volume.

Storage system and storage control device

A storage system or data management and migration method enabling migration of an access destination for a host system without having to stop the transmission of data between the host system and storage apparatuses. The storage system includes: a host system that issues a data read/write request; an external storage apparatus that provides an external logical volume for storing the data; and a first storage apparatus that creates a first virtual logical volume. In this system, the host system makes a request to the first storage apparatus to map volume information composed of the management information for the external logical volume; in response to the mapping request, the first storage apparatus maps the volume information for the external logical volume onto the first virtual logical volume and sends the volume information for the external logical volume and first virtual logical volume to the host system; based on the volume information for the external logical volume sent from the first storage apparatus, the host system searches for any virtual logical volume having the same volume information as the volume information for the first virtual logical volume or external logical volume, and sets the virtual logical volume searched for in this search as an alternate volume for receiving requests to read/write data from/to the external logical volume.

Storage system, and data management and migration method

A storage device system in which migration of data from an existing storage device to a higher-standard storage device is unnecessary, and in which discarding of existing storage devices by the user can be prevented. A CHFreceives a Read Capacity command from a new-type storage device(S). Using LDEV, LUN and other information tables, an LUNis converted into a mapped LDEV (S). A check is performed to determine whether the LDEV emulation type is read-only, write-only, or read/write (S). If none of these, a check is performed to determine whether the emulation type is newly created (S). If newly created, the size of all storage areas of the LDEV are set as the Max LBA in a response to the new-type storage device(S). If the result of Sis YES, the size of the user area in the LDEV is set as the Max LBA in a response to the new-type storage device(S). If not newly created, processing proceeds to the processing of S

Storage device system interfacing open-system host computer input/output interfaces

Techniques for realizing efficient setting and utilization of configuration including storage volumes in a storage system having an initiator and a target, with a low cost configuration not requiring additional equipment such as a LAN and a server without limitations due to a low-transfer rate network are provided. The storage system has, e.g., an IS serving as an initiator, a TS serving as a target, and a frame relay device R for relaying the communication between the devices. The R has a DB for retaining the configuration information including the configuration of storage volumes in plural devices connected via plural ports, and an exclusive control unit for performing an exclusive control process of the configuration information in the DB upon setting for utilizing the storage volumes among the plural devices. According to update of the configuration of each device, the R updates the configuration information in the DB.

Storage system, configuration management method, and program

A storage apparatus is capable of relocating volumes accurately even when a plurality of storage apparatuses are connected. The storage apparatus comprises an external connection function for recognizing an external logical volume set on a physical storage device as a logical volume inside the storage apparatus, a storage control device with a volume relocation function for relocating the logical volumes based on set conditions, and a storage unit with a plurality of physical storage devices. When the host sends a read request to the logical volume set on the physical storage device of the storage unit, the volume relocation function generates internally the same read request to the external storage volume set on the physical storage device in the external storage apparatus and relocates volumes based on the monitor information obtained by monitoring responses to the read request.

Storage apparatus and method for relocating volumes thereof

Provided is a storage controller having at least one or more first logical devices to be accessed by the host system, and at least one or more virtual devices for connecting the first logical devices and one or more storage devices. At least one of the virtual devices is connected to a second logical device of the other storage controller. With this storage controller, the access attribute of the first logical device and the access attribute of the second logical device are made to coincide by transmitting and receiving access attribute information of at least either the first logical device or the second logical device to and from the second storage controller.

Growing community of inventors

Ooi, Japan

Yoshihito Nakagawa