A Disaster-Oriented Strong Secure File System

Nowadays, humans have a great dependence on computer and network, and the security of computer related to the whole world and everybody. In that case, we should pay more attention about the security and recovery of the computer system. File system is the manager of data in computer. That´s the key point of the security of data. This paper made a brief analysis about the existing secure file system, and in view of the problems of these file systems, we designed a kind of disaster-tolerant oriented strong secure file system. This system based on Linux, and we introduced the technology of virtual storage. According to the rationale of stackable file system, we added the layers of audit and monitor, transparent encryption and disaster tolerant to implement a virtual file system which integrated disaster tolerant and strong security. In this way, it can provide a strong security of data which should be controlled.