With vSphere 4.1, there are vCenter perf objects for NFS datastores.

If you don't have 4.1, nfstop presents vscsiStats output very nicely. http://communities.vmware.com/thread/246837?start=15&tstart=0

Make sure you use the newer version posted by titaniumlegs, since it works in more versions of ESX (python issues).

nfstop also works in ESXi from the unsupported console. (It was in fact developed in ESXi 4.0)

Share and enjoy!

Peter

-----Original Message----- From: Page, Jeremy [mailto:jeremy.page@gilbarco.com] Sent: Tuesday, February 15, 2011 5:15 PM To: Blake Golliher; Rob Cc: toasters@mathworks.com Subject: RE: NFS Latency on VMware hosts

http://www.vfrank.org/vscsistats/

It's results have an ugly format but are easy to fix with regex, it's a great thing to have in addition to the stats show for nfs & what the VMs themselves think the storage is doing.

-----Original Message----- From: owner-toasters@mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Blake Golliher Sent: Tuesday, February 15, 2011 8:04 PM To: Rob Cc: toasters@mathworks.com Subject: Re: NFS Latency on VMware hosts

There might be a way with vmware, but if you can get to the right linux internals on vmware, this python script might help.

http://git.linux-nfs.org/?p=steved/nfs-utils.git;a=blob;f=tools/nfs-iost at/nfs-iostat.py

-Blake

On Tue, Feb 15, 2011 at 3:40 PM, Rob rob-7704@austin.rr.com wrote:

Is there a way to measure the latency at the VMware host for an NFS

mount?

TIA

-Rob

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