[gpfsug-discuss] GPFS inside OpenStack guests

[Alex Chekholko]

Just make the new VMs NFS clients, no?  It's so much simpler and the 
performance is not much less.  But you do need to run CNFS in the GPFS 
cluster.

On 11/19/14 11:03 AM, Simon Thompson (Research Computing - IT Services) 
wrote:
>
> Yes, what about the random name nature of a vm image?
>
> For example I spin up a new vm, how does it join the gpfs cluster to be able to use nsd protocol?
>
> And how about attaching to the netowkrk as neutron networking uses per tenant networks, so how would you actually get access to the gpfs cluster?
>
> Simon
> ________________________________________
> From: gpfsug-discuss-bounces at gpfsug.org [gpfsug-discuss-bounces at gpfsug.org] on behalf of Sven Oehme [oehmes at gmail.com]
> Sent: 19 November 2014 19:00
> To: gpfsug main discussion list
> Subject: Re: [gpfsug-discuss] GPFS inside OpenStack guests
>
> technically there are multiple ways to do this.
>
> 1. you can use the NSD protocol for this, just need to have adequate Network resources (or use PCI pass trough of the network adapter to the guest)
> 2. you attach the physical disks as virtio block devices
> 3. pass trough of the Block HBA (e.g. FC adapter) into the guest.
>
> if you use virtio you need to make sure all caching is disabled entirely or you end up with major issues and i am not sure about official support for this, 1 and 3 are straight forward ...
>
> Sven
>
>
>
>
>
> On Wed, Nov 19, 2014 at 8:35 AM, Orlando Richards <orlando.richards at ed.ac.uk<mailto:orlando.richards at ed.ac.uk>> wrote:
> Hi folks,
>
> Does anyone have experience of running GPFS inside OpenStack guests, to connect to an existing (traditional, "bare metal") GPFS filesystem owning cluster?
>
> This is not using GPFS for openstack block/image storage - but using GPFS as a "NAS" service, with openstack guest instances as as a "GPFS client".
>
>
> ---
> Orlando
>
>
>
>
> --
>              --
>         Dr Orlando Richards
> Research Facilities (ECDF) Systems Leader
>         Information Services
>     IT Infrastructure Division
>         Tel: 0131 650 4994
>       skype: orlando.richards
>
> The University of Edinburgh is a charitable body, registered in Scotland, with registration number SC005336.
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-- 
Alex Chekholko chekh at stanford.edu