> I have an issue with a new cluster setup where the nodes are RHEL5.1(with
> the latest 5.2 kernel), when i try to write NFS data, the nodes scale

Have you tried the latest bz321111 kernel from Johnny?
<http://people.centos.org/hughesjr/kernel/5/>

I have kind of lost faith in RH kernels as far as NFS performance is
concerned - and yes, I know that the bz321111 issue is supposedly
solved in 5.2 but until we can positively confirm that ourselves I
ain't letting it near our production servers

BR Bent
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Hi Bent,


Have you tried the latest bz321111 kernel from Johnny?

<http://people.centos.org/hughesjr/kernel/5/>



I have kind of lost faith in RH kernels as far as NFS performance is

concerned - and yes, I know that the bz321111 issue is supposedly

solved in 5.2 but until we can positively confirm that ourselves I

ain't letting it near our production servers
Yes I did, however now that you mention it, when i did first time i had two issues one of performance that* i am* not getting the required* performance in terms of bandwidth, and by applying the standard* RHEL4* kernel network parameters that did fix it, now i am left with that scalability issue


regards

Walid

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