Storage Device
First Claim
1. A storage device including a storage area and connected to a computer for causing a file system to operate, the file system causing a data area for storing contents of a plurality of files and a management area for managing the plurality of files to be secured in the storage area, the storage device comprising:
- the storage area;
a file system monitor for detecting that the file system has performed an operation of erasing a file; and
a controller for, when the file system monitor detects an operation of erasing the file, performing erasure or write to put an area corresponding to the erased file in the storage area into an unrecoverable state.
1 Assignment
0 Petitions
Accused Products
Abstract
A storage device includes a storage area and connected to a computer for causing a file system to operate. The file system causes a data area for storing contents of a plurality of files and a management area for managing the plurality of files to be secured in the storage area. The storage device includes the storage area; a file system monitor for detecting that the file system has performed an operation of erasing a file; and a controller for, when the file system monitor detects an operation of erasing the file, performing erasure or write to put an area corresponding to the erased file in the storage area into an unrecoverable state.
34 Citations
8 Claims
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1. A storage device including a storage area and connected to a computer for causing a file system to operate, the file system causing a data area for storing contents of a plurality of files and a management area for managing the plurality of files to be secured in the storage area, the storage device comprising:
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the storage area; a file system monitor for detecting that the file system has performed an operation of erasing a file; and a controller for, when the file system monitor detects an operation of erasing the file, performing erasure or write to put an area corresponding to the erased file in the storage area into an unrecoverable state. - View Dependent Claims (2, 3, 4, 5)
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6. A storage device including a storage area and connected to a computer for causing a file system to operate, the file system causing a data area for storing contents of a plurality of files and a management area for managing the plurality of files to be secured in the storage area, the storage device comprising:
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the storage area; a logical address/physical address conversion table for storing information on conversion between a logical address by which the file system specifies a file and a physical address by which a controller specifies an area in the storage area; a file system monitor for detecting that the file system has performed an operation of erasing a file; and the controller for, when the file system monitor detects an operation of erasing the file, cancelling correspondence, stored in the logical address/physical address conversion table, between the logical address of data on the file and the physical address of the area corresponding to the erased file in the storage area. - View Dependent Claims (7, 8)
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Specification