1.常用的分布式文件系统有NFS
2.FastDFS
http://www.cnblogs.com/huangxincheng/p/7928345.html
http://www.ityouknow.com/fastdfs/2017/10/10/cluster-building-fastdfs.html
http://www.cnblogs.com/huangxincheng/p/8646451.html