Storage device, computer-readable nonvolatile storage medium to store control program of storage device, and control method of storage device
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United States of America Patent
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Jan 2, 2018
Issued Date -
N/A
app pub date -
Mar 6, 2017
filing date -
Nov 4, 2015
priority date (Note) -
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Abstract
In an embodiment, a storage device includes a shingled magnetic recording device, a management unit, selection unit, and execution unit. The shingled magnetic recording device performs writing in unit of a band including tracks being adjacent to and partially overlapping with each other. The management unit manages management information mutually associating band identifier of the band, characteristic information indicating a possibility that data stored in the band is not referred to, and data identifier of the data in a case where the data is stored in the band. The selection unit selects the band of the shingled magnetic recording device storing the data based on the data and the characteristic information in a case where the shingled magnetic recording device is requested to store the data. The execution unit stores the data to the selected band.
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