The Design And Implement Of A Global File System Named M-GFS Based On A Cluster Environment

Today cluster technique has become a hot researching issue as it is the most economic mode to construct a computing platform.The design and implement of the global file system based on cluster environment is one of the most important issues of cluster technique.Comparing with the rapid development of hardware techniques,the research work on the global file system falls behind.And some new concepts and ideas are just on the stage of test.The feasibility of these concepts and ideas applied to the global file system needs to be further testing.So it is very necessary to do some research work on the techniques of the global file system in order to provide some surports to the design and implement of a new generation global file system.This paper does some work based on a concrete global file system named GFS-3.After the author's reading and analyzing the source code of GFS-3,this paper points out the technique faults existing in GFS-3.The faults cover the fields about lock management,free blocks management and Buffer Cache,which will bring a negative impact on the performance of the file system.So we design and implement a modified file system prototype named M-GFS in order to eliminate the GFS-3's technique limitations. In M-GFS,new solution schemes are introduced into the previous aspects. The comparing test results between M-GFS and GFS-3 are also shown in this paper,which indicate that the performance of M-GFS is superior to that of GFS-3 in the modified parts.At the end of this paper,the author provides some advice on the improvement of M-GFS in order to acquire some helps in the future.