Patent ID: 11947836
Assignee: KIOXIA CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 10:
11. A method of controlling a first memory, the first memory including a nonvolatile storage region that includes a plurality of first segment regions, the method comprising:
writing a plurality of first data segments of user data and metadata to the plurality of first segment regions in accordance with a first setting, the first setting being a setting that defines a first order and write destinations of the user data and the metadata in the plurality of first segment regions, the first order being an order of selection of the plurality of first segment regions as a write destination;
in response to a read request from a host, individually identifying a plurality of second segment regions to which a plurality of second data segments has been written, from among the plurality of first segment regions, the plurality of second data segments corresponding to user data requested by the read request among the plurality of first data segments; and
determining whether or not to perform a prefetch operation in a read operation to the plurality of second segment regions according to a second order and a third order, the second order being an order of reading the plurality of second data segments from the plurality of second segment regions, the third order corresponding to the first order excluding the order of write destinations of the metadata.