Data storage device and data erasing method
AssigneeKabushiki Kaisha Toshiba
InventorsTeruji Yamakawa, Osamu Yoshida
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Abstract
A data storage device includes a recording medium including a data region for recording data and a nonvolatile recording unit distinct from the data region. In response to a request for executing erase processing with respect to the recording medium, first time information corresponding to initiation of the erase processing in the nonvolatile recording unit is stored, the erase processing after storing the first time information is executed, and second time information corresponding to completion of the erase processing is stored in the nonvolatile recording unit.
Claims20
A data storage device comprising:
- a recording medium including a data region for recording data;
- a nonvolatile recording unit distinct from the data region;
- and
- a controller configured to:
- control recording of data in the data region;
- store, in response to a request for executing an erase process on the recording medium, first time information corresponding to a start time of the erase process in the nonvolatile recording unit;
- execute the erase process after storing the first time information;
- and
- store second time information corresponding to a completion time of the erase process in the nonvolatile recording unit.
A data erasing method for a data storage device that includes a recording medium with a data region for recording data and a nonvolatile recording unit distinct from the data region, the data erasing method comprising:
- storing, in response to a request for executing an erase process on the recording medium, first time information corresponding to a start time of the erase process in the nonvolatile recording unit;
- executing the erase process after storing the first time information;
- and
- storing second time information corresponding to a completion time of the erase process in the nonvolatile recording unit.
Dependencies are inferred from the claim text.