Memory system managing a plurality of logs

A memory system comprising:

• a nonvolatile memory including a plurality of blocks, each one of the plurality of blocks being a unit of data erasing and including a plurality of pages, each one of the plurality of pages being a unit of data programming;
• a volatile memory capable of storing management information, the management information including a storage position of data stored in the nonvolatile memory;
• and
• a management information writing unit configured to update, when the storage position of data is changed in the nonvolatile memory, the management information stored in the volatile memory;
• a management information storing unit configured to:
• before writing data to the nonvolatile memory, store a first log including an update schedule of the management information in the nonvolatile memory;
• and
• after writing data to the nonvolatile memory, store a second log including an update result of the management information in the nonvolatile memory, wherein
• the management information storing unit is configured to store the first log and the second log in the same-numbered page of two different blocks.