Controls the maximum size of the data portion of an NFS version 3 READ, WRITE, READDIR, or READDIRPLUS request over TCP. This parameter controls both the maximum size of the request that the server returns as well as the maximum size of the request that the client generates.
0 to 231 - 1
Yes, but this parameter is set per file system at mount time. To affect a particular file system, unmount and mount the file system after changing this parameter.
None. However, setting the maximum transfer size on the server to 0 is likely to cause clients to malfunction or just decide not to attempt to talk to the server.
Do not change this parameter unless transfer sizes larger than 1 Mbyte are preferred.