Electronic device, computer system, and control method

An electronic device comprising:

• a memory;
• and
• a processor configured to execute a program stored in the memory, wherein
• the processor is configured to:
• receive information from a storage device that comprises a nonvolatile memory comprising blocks, wherein the information that indicates a first logical address range corresponding to cold data stored in the nonvolatile memory, and a processing amount for turning a cold block comprising the cold data into a block to which data is writable;
• issue a read command designating the first logical address range to the storage device, and receive the cold data from the storage device;
• and
• issue, to the storage device, a write command for writing of the received cold data that designates the first logical address range.

A computer system comprising:

• a storage device;
• and
• a host, wherein
• the storage device comprises:
• a nonvolatile memory comprising blocks;
• and
• a controller electrically connected to the nonvolatile memory,
• the host comprises:
• a memory;
• and
• a processor configured to execute a program stored in the memory,
• the controller is configured to:
• transmit information to the host, wherein the information that indicates a first logical address range corresponding to cold data stored in the nonvolatile memory, and a processing amount for turning a cold block that comprises the cold data into a block to which data is writable;
• read the cold data from the nonvolatile memory in accordance with a read command that is received from the host and designates the first logical address range, and transmit the cold data to the host;
• and
• write, to the nonvolatile memory, the cold data received with a write command designating the first logical address range from the host, and
• the processor is configured to:
• receive the information;
• issue, to the storage device, a read command that designates the first logical address range, and receive the cold data from the storage device;
• and
• issue, to the storage device, a write command for writing the received cold data that designates the first logical address range.

A control method of an electronic device that comprises a nonvolatile memory comprising blocks, the method comprising:

• transmitting information to a host, wherein the information indicates a logical address range corresponding to cold data stored in the nonvolatile memory, and information that indicates a processing amount for turning a cold block that comprises the cold data into a block to which data is writable;
• reading the cold data from the nonvolatile memory in accordance with a read command that is received from the host and designates the logical address range, and transmitting the read cold data to the host;
• and
• writing, to the nonvolatile memory, the cold data that is received with a write command designating the logical address range from the host.

A control method comprising:

• receiving information from a storage device that comprises a nonvolatile memory comprising blocks, wherein the information that indicates a logical address range corresponding to cold data stored in the nonvolatile memory, and information that indicates a processing amount for turning a cold block that comprises the cold data into a block to which data is writable;
• issuing a read command designating the logical address range to the storage device;
• receiving the cold data from the storage device;
• and
• issuing, to the storage device, a write command for writing the received cold data that designates the logical address range.

A control method of a computer system that comprises a host and a storage device that comprises a nonvolatile memory comprising blocks, the method comprising:

• transmitting information from the storage device to the host, wherein the information that indicates a logical address range corresponding to cold data stored in the nonvolatile memory, and a processing amount for turning a cold block that comprises the cold data into a block to which data is writable;
• transmitting a read command designating the logical address range from the host to the storage device;
• transmitting, to the host, the cold data read from the nonvolatile memory in accordance with the read command;
• and
• transmitting a write command designating the logical address range from the host to the storage device;
• and
• writing, to the nonvolatile memory, the cold data received with the write command.