[openstack-dev] Management of NAS (NFS/CIFS shares) in OpenStack

Michael Chapman michael.chapman at anu.edu.au
Thu Nov 22 00:31:24 UTC 2012


This is something we are extremely interested in, as we have existing large
filesystems (cxfs and lustre) and getting at that data in a manageable and
secure manner from an Openstack VM is currently a manual process of
sub-folder exports to floating IPs. My understanding is that there are a
number of research sites in similar situations.

Following ISI's talk at the summit, one option we looked at was VirtFS, but
since that is KVM only and the security models available weren't going to
give us good results, it didn't seem like the best option.

As to whether this belongs in Cinder or as a separate project, from an ops
perspective I think block storage and network shares are both instances of
granting individual VMs access to slices of storage resources, and as such
belong under a single project. If the concern is that Cinder-core will
require additional members that can support the additional protocols for
reviews, I would suggest that this is no different to supporting iser or
fibre-channel attached block storage, which would require a different set
of expertise to the current iscsi approach, yet would certainly fall under
the general category of block storage.

 - Michael Chapman


On Thu, Nov 22, 2012 at 2:52 AM, Swartzlander, Ben <
Ben.Swartzlander at netapp.com> wrote:

>  NetApp is interested in providing a common way to provision and attach***
> *
>
> NFS and CIFS shares to VMs in an OpenStack environment. We presented our**
> **
>
> ideas at the OpenStack summit last month and we have submitted a patch****
>
> to Cinder that demonstrates one way to implement these features. We****
>
> believe that extensions to the Cinder API are the most logical and least**
> **
>
> disruptive way to bring these features to OpenStack, but discussions at***
> *
>
> the conference show there are differences of opinion on this topic.****
>
> ** **
>
> I would like to invite anyone who is interested in NFS and CIFS in****
>
> OpenStack, or Cinder or NAS in general to take a look at our etherpad****
>
> and our code submission and provide feedback and suggestions.****
>
> ** **
>
> Etherpad: https://etherpad.openstack.org/cinder-nas-extensions****
>
> Gerrit Submission: https://review.openstack.org/#/c/16054/****
>
> ** **
>
> Our proposed patch does include substantial changes and we want to do****
>
> our best to ensure that we do it right the first time, so please reply****
>
> to me and/or this thread if you're interested and have good ideas,****
>
> opinions, or suggestions. We also welcome any code review comments on****
>
> the gerrit submission.****
>
> ** **
>
> -Ben Swartzlander****
>
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>
>


-- 
Michael Chapman
*Cloud Computing Services*
ANU Supercomputer Facility
Room 318, Leonard Huxley Building (#56), Mills Road
The Australian National University
Canberra ACT 0200 Australia
Tel: *+61 2 6125 7106*
Web: http://nci.org.au
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