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Post by quick on Nov 13, 2006 0:23:28 GMT 7
Hi...
I have started playing with mounting a folder from N5200 from a Linux-box.
mount -t nfs -o rw,tcp,soft,vers=2,nolock,rsize)8192,wsize=8192 <share> <local-mount-point>
My firmware is 1.00.04.9. <-- should have better nfs-performance The network link on my linux-box is only 100Mbs
What I observe when writing to the mounted folder from linux is: * first 25-30 MB of a file is really fast 7-8 MB/s (remember the link is only 100Mbs) * then the transfere is stuck for a few seconds * then some more data is transfered to the N5200 but now much slower.
After the first "normal" burst, it seams that the average transfere rate is only 1Mb/s.
From a windows-box with 1Gbs-link and SMB-protocol I am able to have a constant write-rate of 28-35MB/s to the N5200. So it is only the nfs-protocol which is slow.
The linux-box is ok hooked on the network (configuration of nic is ok) and the disks can feed data with a rate much higher than the transfere rate seen.
Q1: Anyone managed to get decent transfere rate to an NFS-folder?
Q2: Any obvious tuning I should dig into?
----- quick
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Post by unicos on Nov 18, 2006 16:52:50 GMT 7
HI,
in the FW 1.003.xx the NFS Protocol was Version 2.
In your FW they have updated to NFS Version3. Version 3 is also able to write Files greater then 2 Gb.
So have a try with following call: v mount -t nfs -o rw,tcp,soft,vers=3,nolock,rsize)8192,wsize=8192 <share> <local-mount-point>
Set Version to 3.
Cheers
Unicos
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Post by quick on Nov 18, 2006 17:20:11 GMT 7
That was a very good tip
Changed to version=3 and I get close to 6MB/s over NFS. That is quite good when the linux-box is only having a 100Mb/s NIC.
And the best of it is that it doesn't seem to hang anymore when writing to the N5200. Now I can start using my N5200-box as a storage also for my linux-boxes ;D
I will try to test this from a linux-box with a Gbs NIC.
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