[Beowulf] NFS HPC survey results.

Jeffrey Layton laytonjb at gmail.com
Sun Jul 24 10:43:29 PDT 2016

Thanks Bill and thanks Doug! While the sample size is small there are some
interesting things in the data. Just my 2 cents (probably worth alot less
than that).

- It looks like alot of people are just using Linux Servers and not
appliances (perhaps moving toward more of the open-storage model).
- It's also interesting that people aren't seeing NFS timeouts like they
used to. I remember a number of years NFS timeouts were very common and
people really trashed NFS as a result.
- The NFS options are also interesting. One thing I thought was cool was
that a few people are using "async". Using async mounts can improve
performance if you have a copy of the data somewhere. Basically it becomes
a scratch file system.
- Looks like /home is the place to use NFS :)  But people are using it
other places (e.g. /usr/local).
- It's really cool that almost 50% of the respondents are using NFS for 65+
nodes (24% above 512).
- About 65% of the respondents are using Ethernet for the network.

Very interesting results.



On Fri, Jul 22, 2016 at 8:05 PM, Douglas Eadline <deadline at eadline.org>

> With Bill's permission, there is now an HTML version
> on Cluster Monkey
> http://www.clustermonkey.net/HPC-Surveys/Polls/nfs-and-hpc-survey-results.html
> >
> > Many thanks for all the responses.
> >
> > Here's the promised raw data:
> >     https://wiki.cse.ucdavis.edu/_media/wiki:linux-hpc-nfs-survey.csv
> >
> > I'll summarize the 26 results below.  I'll email similar to those that
> > asked.
> --snip--
> --
> Doug
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