Optimal number of nfsd? [was: Re: OT:nfs hangs with redhat 7.3]
jmdavis at mail2.vcu.edu
Mon Jul 29 10:44:40 PDT 2002
With large sgi's, SGI recommends 1 nfsd per processor. This works well for machines not being used as disk
servers. I currentley run 20-24 nfsd on a 16 p machine. Smaller machines can necessitate more nfsd's per
processor. Note that RH 7.2+ now starts 8 by default.
My rule of thumb is to monitor the logs and determine if I need more resources although this can sometimes create
its own problems.
Jim Meyer wrote:
> On Mon, 2002-07-29 at 05:33, Tim Wait wrote:
> > > there has been a very, very great deal of improvement in the kernel's
> > > MM and NFS since 7.3 was released. you should consider getting/running
> > > 2.4.19-rc3.
> > In a possibly related issue, do you have enough nfsd daemons running?
> > Check /etc/init.d/nfs... this fixed it for me on an older version:
> > # Number of servers to be started by default
> > RPCNFSDCOUNT=36
> Here's an excellent question: how does one calculate the optimal number
> of nfsd processes to have lying about?
> Jim Meyer, Geek At Large purp at wildbrain.com
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Mike Davis Web and Research Computing Services
Unix Systems Manager Virginia Commonwealth University
jmdavis at mail2.vcu.edu 804-828-3885 (fax: 804-828-9807)
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