Storage device and control method for maintaining control information in the event of power failure

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11372583
APP PUB NO 20200409604A1
SERIAL NO

16808259

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Abstract

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To appropriately access data managed before a supply of power is stopped. A storage device that receives an I/O request from a host computer and performs an I/O processing in response to the I/O request includes a CPU, a nonvolatile medium, and a memory having access performance higher than that of the nonvolatile medium. The CPU stores control information about a control for performing the I/O processing in the memory and the nonvolatile medium. The control information stored in the nonvolatile medium includes address conversion information for converting a physical address of a drive in which target data of the I/O request is stored and a logical address that indicates a logical area of data stored in the physical address.

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Patent Owner(s)

  • HITACHI LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ito, Shintaro Tokyo, JP 58 307
Tajima, Sachie Tokyo, JP 24 122

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