Back to results
US 2013/0086314 A1Published application
Storage system, storage device, and control method thereof
AssigneeHitachi, Ltd.
InventorsShuji NAKAMURA, Kazuhisa FUJIMOTO, Akira FUJIBAYASHI
Life of this patent
Estimating the term…
Abstract
A storage system including a storage device which includes media for storing data from a host computer, a medium controller for controlling the media, a plurality of channel controllers for connecting to the host computer through a channel and a cache memory for temporarily storing data from the host computer, wherein the media have a restriction on a number of writing times. The storage device includes a bus for directly transferring data from the medium controller to the channel controller.
Claims14
A storage system comprising:
- a plurality of flash memory devices;
- a plurality of hard disk devices;
- a storage controller, which is to be coupled to a computer, including:
- a processor configured to control read/write request from the computer to the plurality of flash memory devices and the plurality of hard disk devices, and
- a cache memory configured to store data temporarily for the plurality of flash memory devices and the plurality of hard disk devices, and
- wherein the processor is configured to receive a read request from the computer, and
- wherein, when target data of the read request is not stored within the cache memory and is stored within one of the plurality of flash memory devices, the processor transfers the target data stored within the one of the plurality of flash memory devices to the computer without storing the data into the cache memory.
4 more elements
A storage system, comprising:
- a plurality of flash memory modules, each of the plurality of flash memory modules including a memory controller and a plurality of flash memory chips;
- a plurality of hard disk devices;
- a cache memory configured to store data temporarily for the plurality of flash memory modules and the plurality of hard disk devices;
- a channel interface configured to receive a read request;
- and
- a processor configured to transfer data stored within the one of the plurality of flash memory modules to the channel interface without storing the data into the cache memory, when data related to the read request is not stored within the cache memory and is stored within one of the plurality of flash memory modules.
3 more elements
A storage system comprising:
- a plurality of flash memory devices;
- a plurality of hard disk devices;
- a storage controller, which is to be coupled to a computer, including:
- a processor configured to control read/write request from the computer to the plurality of flash memory devices and the plurality of hard disk devices;
- a cache memory configured to store data temporarily for the plurality of flash memory devices and the plurality of hard disk devices;
- and
- a control memory configured to store information for managing data stored within the cache memory and the processor configured to receive a read request from the computer,
- when target data of the read request is not stored within the cache memory and is stored in one of the plurality of flash memory devices, the processor transfers the target data stored within the one of the plurality of flash memory devices to the computer without accessing the control memory in a process of the transferring the target data.
5 more elements
Dependencies are inferred from the claim text.