Kabushiki Kaisha Toshiba

Toshiba Electronic Devices & Storage Corporation

Jun Ichishima

Kazuya Takada

Norifumi Tsuboi

According to one embodiment, a magnetic disk device includes a magnetic disk, a first magnetic head and a second magnetic head that are moved independently of each other, a first controller chip, a second controller chip, and a third memory. The first controller chip includes a first processor and a first memory, and controls the first magnetic head. The second controller chip includes a second processor and a second memory, and controls the second magnetic head. Management information is stored in the third memory. The first controller chip is connected to the third memory. The second controller chip is connected to the third memory via the first controller chip. The second controller chip saves the management information into the second memory.

Magnetic disk device having multiple independent moving actuators

According to one embodiment, a storage control apparatus includes an interface and a controller. The interface transfers data or a command to or from a nonvolatile memory including a storage area for each of banks. The controller controls read operations for the banks in accordance with generation of access requests to the banks, respectively. The controller prioritizes performing read-command issuance processing included in each of the read operations.

Growing community of inventors

Kanagawa, Japan

Jun Ichishima