We have many small files which stored on the NFS side. We want to tar the directory and then move these data to other NFS filesystem after two weeks. Now the problem is that the tar speed is very slow.One directory is 400M. It took 4 minutes to finish the tar command. We have many directories like this. It took a long time to tar all the files. We tested it on 3 servers and the time is almost same. If we move the data to other NFS filesystem, the tar time is reduced dramatically. But the data transferring time from filesystems also took a long time. What should I do ?