Data storage device deferred secure delete
AssigneeInternational Business Machines Corporation
InventorsJakob C. Lang, Angel Nunez Mencias, Thomas Pohl, Martin Troester
Life of this patent
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Abstract
A method of securely deleting data from a data storage device is described. The method includes the steps of receiving a secure delete command to securely delete a file. A data block of the file to securely delete is identified. A pointer to the data block is stored in a deletion buffer. It is then determined whether the secure delete command has a highest priority over other data storage device commands. In response to the secure delete command having the highest priority, the secure delete command to the data block is performed.
Claims11
1-10. (canceled)
A data storage device, comprising:
- a persistent storage;
- a deletion buffer to store a pointer to a block of data;
- and
- a controller configured to:
- receive a secure delete command to securely delete a file;
- identify a data block of the file to securely delete;
- store a pointer to the data block in a deletion buffer;
- determine whether the secure delete command has a highest priority over other data storage device commands;
- and
- perform the secure delete command to the data block in response to the secure delete command having the highest priority.
Dependencies are inferred from the claim text.