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Ishnovik Markovo

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How to get maximum transfer speed over LAN

i have a Gbps LAN with Gbps NIC and the transfer speed over lan is 100-120 Mbps with FTP and Samba
file size of each file is more then 1gb with Centos OS and my objective is to get 500Mbps min file transfer rate
help me to get my objective
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Dave Baldwin
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The better way to test network performance is to use iperf/jperf which do not rely on Disk IO
Assuming you have RAID with enough throughput, and you really mean to get to 500 Mega bytes per second, you could add 4 more GigE ports on your server, if you just want to aggregate that speed to multiple systems or you'll need a single 10 Gig ethernet on both servers.  You could also use InfiniBand for even faster speeds.
If your infrastructure supports it ,you could configure jumbo frames.

http://www.cyberciti.biz/faq/rhel-centos-debian-ubuntu-jumbo-frames-configuration/