Information processing apparatus

An information processing apparatus connectable to a memory system, the information processing apparatus comprising:

• a nonvolatile memory;
• and
• a processor configured to:
• read, from the memory system, one or more first data portions that are stored in a first logical address range;
• store the read one or more first data portions to the nonvolatile memory;
• after one or more contiguous second data portions among the one or more first data portions that are stored in the nonvolatile memory are rewritten,
• store first management data to the nonvolatile memory, the first management data including information equivalent to a first write command that is associated with the one or more second data portions and designates a second logical address range that corresponds to the one or more second data portions, and
• perform a first transmission of the first write command to the memory system;
• upon receiving, from the memory system, a first response to the first write command transmitted in the first transmission, add, to the first management data, information indicating that the first response to the first write command transmitted in the first transmission has been received;
• and
• upon receiving a second response to the first write command from the memory system after receiving the first response, delete the first management data from the nonvolatile memory, wherein
• the processor is further configured to:
• when a third data portion of the one or more second data portions is rewritten before receiving the second response,
• wait to receive the first response to the first write command, and
• after receiving the first response to the first write command, transmit, to the memory system, a command to cancel a write operation to a third logical address range from a write operation of the one or more second data portions to the second logical address range in accordance with the first write command, the third logical address range corresponding to the third data portion;
• and
• when the cancel of the write operation to the third logical address range is successful, update or delete the first management data.