FILE SYSTEM SUPPORT FOR INERT FILES

摘要

A method for storing a file on a data storage device. The method includes: storing the file in one of a first and a second file system; calculating a hash value; and storing the hash value on a storage device if it is stored in the second file system. A data processing system includes a first file system and a second file system wherein the data processing system calculates and stores a hash value when the file is stored in the second file system. A method for reading a file from a file system including: receiving a read command; reading a first hash value from a storage device; reading the file from the storage device; calculating a second hash value; returning the file when the first hash value equals the second hash value and returning an error when it does not equal the second hash value.