Fujitsu Corporation

Tomoaki Tsuruta

Tsukasa Makino

Hiroaki Ochi

Marie Abe

Atsushi Ishii

Naohiro Takeda

Koji Ohtsuki

Yuichi Ogawa

Masanori Ito

Masanori Itou

A storage system, a storage managing device, and a storage managing method are provided. The storage system includes plural mount devices in which storage devices are mounted and includes a router connected to at least two loops in which plural mount devices are cascade-connected to one another, an initialization completion determining unit that determines whether an initialization processing of obtaining identification information of the storage devices is completed when the initialization processing concerned is executed by using at least one loop of the loops connected to the router, an initialization time determining unit that determines whether an execution time of the initialization processing elapses a predetermined time based on a determination result of the initialization completion determining unit, and a time extending unit that extends the predetermined time when the determination result indicates that the initialization processing completed and the initialization processing is executed by the plural loops.

Storage system, storage managing device and storage managing method

A storage control apparatus for transmitting data to and receiving data from a plurality of storage devices connected to the same interface, the storage control apparatus includes a memory configured to store a management table registering a burst transfer length of each of the plurality of storage devices, the plurality of storage devices including a first storage device having a first burst transfer length that is a minimum in the management table and a second device having a second burst transfer length; an adjusting controller configured to adjust the second burst transfer length in input and/or output processing if the second burst transfer length registered in the management table is different from the first burst transfer length; and a data transfer controller configured to issue a command for a data transfer to the second storage device on the basis of the adjusted second burst transfer length.

Storage control apparatus, storage system and method

The storage apparatus of the present invention includes a disk controller (CM) that issues a command to a disk via a fabric device. The CM controls the number of commands to be issued to the disk based on the structure of the storage apparatus and the operation state of the storage apparatus.

Storage apparatus, disk controller, and command issue control method

There is provided a management apparatus of a storage apparatus. The management apparatus includes an acquisition determination section that determines whether predetermined identification information can be acquired or not from a mounting apparatus that mounts at least one storage apparatus and has at least one predetermined identification information assigned thereto, and a failure determination section that determines, based on a determination result of the acquisition determination section, an access failure to the storage apparatus mounted in the mounting apparatus has been caused due to a failure of the storage apparatus itself or an interruption of a power supply to the mounting apparatus.

Growing community of inventors

Kawasaki, Japan

Tomoaki Tsuruta