Research And Application Of Robustness Test Of Parallel File System

With the increase of the information, more and more computer applications become more. Storage become the development direction of the information industry. Mass storage will develop well.Mass data storage needs the support of the File System.Parallel File System is a distributed file system in a multi-machine environment. It consists of a set of I/O nodes. A file is stored with the data points of the ways on different nodes. Multi-machine or multiple processes can store and read data together. Metadata and data storage can be in distributed storage. It provides a single storage directory to outside space. Parallel File System can complete the tasks of the calculation and storage of a large-scale data.Once file system have problems, consequences will be disastrous. In order to improve the quality of the parallel file system, to make it adapt to varieties of complicated network environment, one of the effective means of is to be test this system. Parallel File System testing includes conformance testing, functional testing, stress testing, performance testing, robustness testing. Robustness Testing sometimes called fault tolerance testing. It is mainly used to test the extent possibility under the condition that the system is invalid input or under unusual environment. It can be understood as the acceptable degree of the software in an abnormal or extreme conditions.In this paper, I study parallel file system robustness testing to test parallel file system Parastor. And a Parallel File System Robustness Testing tool is developed. This testing tool can be used to test parallel file system external interfaces (including Windows and Linux systems).The main work includes:(1) Study on test methods and tools for robustness test, with fault injection thought about testing robustness;(2) Using orthogonal method to design test cases and generate fault parameters;(3) Analyzing the target system and design robustness test;(4) Classify parallel file system API for Windows clients and Linux clients according to the instructions of theirs;(5) Designing and implementing Parallel File System robustness testing tool;(6) Accumulation testing robustness testing library and automate run them;(7) Application of Testing tools in actual project.