| 摘要 |
According to one embodiment, a magnetic disk device includes: a recording medium configured to record a plurality of metadata items for each of search data items, the metadata items being related to information of the search data items; a management module configured to manage, for each of the metadata items, logical addresses specifying the metadata items recorded in the recording medium; and a reader configured to read the metadata items from the recording medium by using the logical addresses managed by the management module.
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