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Dave's PCF WIP: Paragraphs

3172

Application Systems and methods for persistent deallocation
Matter Number US8762658B2 Reference Case 1 US8762658B2
Created 3/24/21, 12:00 AM Modified 3/24/21, 12:00 AM
Application Number
Paragraph Number

5

Content

Typically, when data is no longer useful it may be erased. In many file systems, an erase command deletes a directory entry in the file system while leaving the data in place in the storage device containing the data. Typically, a data storage device is not involved in this type of erase operation. Another method of erasing data is to write zeros, ones, or some other null data character to the data storage device to actually replace the erased file. However, this is inefficient because valuable bandwidth is used while transmitting the data is being overwritten. In addition, space in the storage device is taken up by the data used to overwrite invalid data.

Notes

Added by DJM 3 2021