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Bad write performance

[ Edited ]

Hello,

 

On a 1Gbps link I get only about 30 MBps (240 Mbps) from my NFS export on NetApp Release 8.3.2P2.

But if I do 4 mounts and write on them in parallel, then I get about 100 MBps (800 Mbps), which is much more acceptable regarding my hardware.

 

Is there any way to get the same speed with a single mount?

 

Thank you.

 

PS: I saw NFS performance is limited without CPU/Memory/Disk bottleneck on clustered Data ONTAP 8.x system, but I cannot believe there is no other way.