tomwaters wrote:
I have added the line to both servers and rebooted...but there does not appear to have been any change to the transfer rate (max. ~45MB/s for large files and down to 20-30MB/s for smaller).
My previous experience shows that the throughput generated via NFS is lower than that of some test tools such as uperf, iperf due to the relatively high overhead in the NFS protocol.
I compiled and installed iperf on both machines and am getting the following rates...so something is not right. Both servers have decent disk write speeds (230MB/s for the nas and 120MB for the backup server). [b]HELP...What do I look at next to debug this?[/b] n...@nas:~$ iperf -c 192.168.0.3 -f M -m ------------------------------------------------------------ Client connecting to 192.168.0.3, TCP port 5001 TCP window size: 0.05 MByte (default) ------------------------------------------------------------ [ 3] local 192.168.0.1 port 40109 connected with 192.168.0.3 port 5001 [ ID] Interval Transfer Bandwidth [ 3] 0.0-10.0 sec 1116 MBytes 112 MBytes/sec [ 3] MSS size 1460 bytes (MTU 1500 bytes, ethernet) Message was edited by: tomwater
The 10s' traffic measurement may be the reason to cause the result unreasonably high. You can lengthen the time and retry.
Alternatively you can use uperf (http://www.uperf.org/). Miles _______________________________________________ networking-discuss mailing list [email protected]
