[gpfsug-discuss] Mounting GPFS data on OpenStack VM

Brian Marshall mimarsh2 at vt.edu
Wed Jan 18 16:22:12 GMT 2017


To answer some more questions:

What sort of workload will your Nova VM's be running?
This is largely TBD but we anticipate webapps and other non-batch ways of
interacting with and post processing data that has been computed on HPC
batch systems.  For example a user might host a website that allows users
to view pieces of a large data set and do some processing in private cloud
or kick off larger jobs on HPC clusters

How many VM's are you running?
This work is still in the design / build phase.  We have 48 servers slated
for the project.  At max maybe 500 VMs; again this is a pretty wild
estimate.  This is a new service we are looking to provide

What is your Network interconnect between the Scale Storage cluster and the
Nova Compute cluster
Each nova node has a dual 10gigE connection to switches that uplink to our
core 40 gigE switches were NSD Servers are directly connectly.

The information so far has been awesome.  Thanks everyone.  I am definitely
leaning towards option #3 of creating protocol servers.  Are there any
design/build white papers targetting the virutalization use case?

Thanks,
Brian

On Tue, Jan 17, 2017 at 5:55 PM, Andrew Beattie <abeattie at au1.ibm.com>
wrote:

> HI Brian,
>
>
> Couple of questions for you:
>
> What sort of workload will your Nova VM's be running?
> How many VM's are you running?
> What is your Network interconnect between the Scale Storage cluster and
> the Nova Compute cluster
>
> I have cc'd Jake Carrol from University of Queensland in on the email as I
> know they have done some basic performance testing using Scale to provide
> storage to Openstack.
> One of the issues that they found was the Openstack network translation
> was a performance limiting factor.
>
> I think from memory the best performance scenario they had was, when they
> installed the scale client locally into the virtual machines
>
>
> Andrew Beattie
> Software Defined Storage  - IT Specialist
> Phone: 614-2133-7927
> E-mail: abeattie at au1.ibm.com
>
>
>
> ----- Original message -----
> From: Brian Marshall <mimarsh2 at vt.edu>
> Sent by: gpfsug-discuss-bounces at spectrumscale.org
> To: gpfsug main discussion list <gpfsug-discuss at spectrumscale.org>
> Cc:
> Subject: [gpfsug-discuss] Mounting GPFS data on OpenStack VM
> Date: Wed, Jan 18, 2017 7:51 AM
>
> UG,
>
> I have a GPFS filesystem.
>
> I have a OpenStack private cloud.
>
> What is the best way for Nova Compute VMs to have access to data inside
> the GPFS filesystem?
>
> 1)Should VMs mount GPFS directly with a GPFS client?
> 2) Should the hypervisor mount GPFS and share to nova computes?
> 3) Should I create GPFS protocol servers that allow nova computes to mount
> of NFS?
>
> All advice is welcome.
>
>
> Best,
> Brian Marshall
> Virginia Tech
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>
>
>
>
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