Kabushiki Kaisha Toshiba

Fujitsu Corporation

Toshiba Storage Device Corporation

Seiji Toda

Nobuhiro Sugawara

Hironori Kanno

Yasuyuki Nagashima

Manabu Suzuki

Takatoshi Fukuda

Kunihiko Hagiwara

Hidekazu Masuyama

Yasuo Noguchi

Kazutaka Ogihara

Masahisa Tamura

Yoshihiro Tsuchiya

Tetsutaro Maruyama

Riichiro Take

Michio Yamamoto

Keiichi Yorimitsu

Mitsuhiko Ohta

Teruji Yamakawa

Arata Ejiri

Kotaro Yamamoto

Tetsuo Kuribayashi

Manabu Sasaki

Takumi Kakuya

Michio Hibi

Kiyotaka Sasaki

Michihiko Umeda

Kenji Ogawa

Kenji Inoue

Masahide Kanegae

Masakazu Kitahara

Takato Kuji

Yukihiro Okada

Hiroshi Miyaoku

Keiko Horiuchi

Masataka Shitara

Isao Fujita

Satoru Adachi

According to one embodiment, A storage device includes a magnetic disk, a head, and a control unit. The magnetic disk includes a plurality of physical sectors having a first length. A logical block having a second length shorter than the first length, and a redundant area having a length of the difference between the first length and the second length are assigned for the physical sectors. The head reads the data from the physical sector of the magnetic disk. The control unit controls to change the second length of the logical block while maintaining the first length of the physical sector in response to reception of a change request for changing the second length of the logical block from a host.

Storage device, controller, and method

According to one embodiment, a drive array apparatus includes a plurality of data storage drives constituting a drive array and a controller. The controller divides all data storage areas of each of the data storage drives into a plurality of logical unit areas and associates and manages each of the logical unit areas and each of the data storage drives. The controller identifies a logical unit area of an error occurrence object based on a notification from a data storage drive where an error occurred, restores data of the identified logical unit area, and performs reconfiguration processing of the drive array.

Drive array apparatus, controller, data storage apparatus and method for rebuilding drive array

An information recording device includes a recording medium that includes a data area, and a controller that controls recording of data on the recording medium, wherein in response to a request for execution of formatting of the data area of the recording medium, the controller does not record data for the formatting in the data area and records format information about the formatting in a nonvolatile recording area that is different from the data area.

Information recording device and information recording method

According to one embodiment, a read/write apparatus includes a receiver and a refresh module. The receiver receives a write command requesting a write to a magnetic disk. The refresh module refreshes, when a first area of the magnetic disk includes a second area corresponding to the write command, data written in a third area, the third area being an area obtained by excluding the second area from the first area.

Read/write apparatus and read/write method

In a system management apparatus, a failure detection unit detects a readout failure in one of blocks constituting distributed data stored in a first RAID disk array. A request unit requests a computer to supplement one of the blocks of the distributed data stored in the first RAID disk array in which a readout failure irrecoverable by use of only the data stored in the first RAID disk array occurs, where the computer has a second RAID disk array storing a duplicate of the distributed data stored in the first RAID disk array. And an overwriting unit receives data corresponding to the one of the blocks from the computer, and overwrites the one of the blocks with the received data.

Process, apparatus, and program for system management

A hybrid recording device having a non-volatile semiconductor memory and a recording magnetic disk includes a mapping unit that maps a first recording area in the recording magnetic disk and a second recording area in the non-volatile semiconductor memory, and a controller that controls an access to the second recording area mapped by the mapping unit when there is an access instruction to the first recording area.

Hybrid recording device

A controller of a storage device having a user area storing an operating system, the storage device developing the operating system stored in the user area on a host device in accordance with an access from the host device. The controller includes a user authentication routine storage controlling unit that stores a user authentication routine for executing user authentication before startup of the operating system, in a predetermined area inside the user area, and an access controlling unit that permits access to the predetermined area from the host device when the user authentication routine is used, while prohibiting access to the predetermined area from the host device when the user authentication routine is not used.

Controller of storage device, storage device, and control method of storage device

A bad sector is detected by activating a bad sector detecting function of a recording apparatus at a predetermined interval. The bad sector is recovered, when the bad sector is detected at the detecting, by overwriting data on the bad sector with a duplication of the data, and when overwriting fails, by writing the duplication of the data on other sector.

Failure recovering method and recording apparatus

When a user indicates a point on a display screen of a computer using a pen sensor, first the display screen is divided into a plurality of areas and the areas are displayed by mutually different colors or brightnesses. The plurality of colors or brightnesses displayed are scanned by the pen sensor and the colors or brightnesses detected by the light receiver to judge in which area the indicated point is located. Next, the judged area is further divided into a plurality of areas which are displayed by mutually different colors or brightnesses. Next, a routine similar to the above is successively repeated to narrow down the area in which the point indicated by the pen sensor is located and finally determine the position of the point, that is, the XY coordinates on the display screen.

Pen sensor coordinate narrowing method and apparatus

A storing part stores image data of an input image signal; and a control part detects a resolution of the image data from a synchronization signal which is in synchronization with the input image signal, and, controls timing of reading the image data from the storing part according to the thus-detected resolution. The control part detects periods of a horizontal synchronization signal and vertical synchronization signal which are in synchronization with the input image signal, determines a magnification for an image to be output, from a horizontal synchronization interval and a vertical synchronization interval of the image to be output, and the periods of the horizontal synchronization signal and vertical synchronization signal which are in synchronization with the input image signal; and controls the timing of reading the image data from said storing part according to the thus-determined magnification.

Image processing device and image processing method

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Kawasaki, Japan

Seiji Toda