| 摘要 |
A storage device includes a data-readable/writable storage medium, a data-readable/writable nonvolatile memory, and a controller which manages one of respective physical storage areas of the storage medium and the nonvolatile memory as being a logical storage area and which, in response to an access request from an external source, executes access to either one or both of the storage medium and the nonvolatile memory.
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