Abstract: An operating method of a host includes receiving a request for secure deletion of a first file stored in a storage system, providing an invalidation command to the storage system for invalidating data of the first file, providing an erase command to the storage system for erasing invalidated data included in the storage system, and performing a deletion operation, which is executable on an operating system of the host, on the first file which is deleted by the erase command.
Type:
Grant
Filed:
April 10, 2017
Date of Patent:
August 31, 2021
Inventors:
Jin-hwan Park, Chan-sol Kim, Myung-jin Jung, Ji-soo Kim, Kyung-ho Kim, Pil-sung Kang, Bong-jun Choi, Chae-won Yu, So-jeong Lee