FILE SYSTEM INTEGRITY ASSURING METHOD, COMPUTER SYSTEM MATERIALIZING INTEGRITY ASSURING FILE SYSTEM, AND FILE SYSTEM INTEGRITY ASSURING PROGRAM AND RECORDING MEDIUM

摘要

PPROBLEM TO BE SOLVED: To assure not only the integrity of a file, and but also the integrity of the whole of a file system, in the file system assuring the integrity of a block by making a pair of a block number of a disc memory storing file data and a hash value obtained by one direction function and storing that in an i node that is a logic structure indicating a file. PSOLUTION: The block (for example, a data block bit map 11 or an i node bit map 12) except for a data block structuring the file system is also managed as a file. The block number of the data block and the hash value of the block are made to be a pair and stored in an i node structure body, thereby assuring the integrity of the whole of the file system. PCOPYRIGHT: (C)2004,JPO