Data storage device and method for accidental delete protection

A method comprising:

• performing the following in a data storage device comprising a memory comprising a first set of physical blocks and a second set of physical blocks, wherein the second set of physical blocks is configured for storing data protected against accidental deletion and the first and second sets of physical blocks are associated with separate logical-to-physical address tables and/or separate block lists:
• writing data received from a host in the first set of physical blocks;
• moving the data from the first set of physical blocks to the second set of physical blocks to protect the data from accidental deletion in response to the host requesting that a modified version of the data be written in the memory;
• receiving, from the host, a request to restore the data;
• and
• in response to receiving the request to restore the data, moving the data from the second set of physical blocks to the first set of physical blocks.

A data storage device comprising:

• a memory comprising a first set of physical blocks and a second set of physical blocks, wherein the second set of physical blocks is configured for storing data protected against accidental deletion and the first and second sets of physical blocks are associated with separate logical-to-physical address tables;
• means for writing data received from a host in the first set of physical blocks;
• means for moving the data from the first set of physical blocks to the second set of physical blocks to protect the data from accidental deletion in response to the host requesting that a modified version of the data be written in the memory;
• means for receiving, from the host, a request to restore the data, which was accidentally deleted by the modified version of the data;
• and
• means for moving the data from the second set of physical blocks to the first set of physical blocks in response to receiving the request to restore the data.