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Old 11-08-2012, 09:04 PM   #1
Registered: Jan 2002
Location: Omaha, NE US
Distribution: Red Hat/CentOS
Posts: 226

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NFS v3 vs. v4 performance

I am running RHEL 6.3. I was using NFSv4 and it was recommended I move to v3 due to some performance issues with v4. However, I am not so sure. I am getting application layer timeouts that I wasn't before. I am not 100% sure its related to NFS yet but want to hear some opinions.

Here are the mount options:
rw,suid,dev,exec,auto,nouser,async,noatime,nodiratime,_netdev,rsize=32768,wsize=32768,nolock,nfsvers =3

Last edited by td3201; 11-08-2012 at 09:49 PM.
Old 11-09-2012, 01:28 AM   #2
Registered: Apr 2010
Location: Kinshasa, Democratic Republic of Congo
Distribution: RHEL, Fedora, CentOS
Posts: 418

Rep: Reputation: 76

Apparently from your mount option you are using NFS version 3 not 4.
Can you clarify?
My choice would have been to go for NFS version 4 and fix the issues there, without falling back to NFS version 3.




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