Open Stack

On 29/09, Duncan Thomas wrote:
> Cinder provides a block storage abstraction to a vm. Manila provides a
> filesystem abstraction. The two are very different, and complementary. I
> see no reason why the nfs related cinder drivers should be removed based on
> the existence or maturity of manila - manila is not going to suddenly start
> providing block storage to a vm.
> On 29 Sep 2015 06:56, "Sheng Bo Hou" <sbhou at cn.ibm.com> wrote:
> 
> > Hi folks,
> >
> > I have a question about the file services in OpenStack.
> >
> > As you know there is a generic NFS driver in Cinder and other file system
> > drivers inherit it, while the project Manila is determined to provide the
> > file system service.
> >
> > Will NFS stay with Cinder as the reference implementation for the coming
> > release or releases? Are all the file system drivers going to move to
> > Manila?
> > What is relation between Manila as FSaaS and NFS in Cinder?
> > Any ideas?
> >
> > Thank you.
> >
> > Best wishes,
> > Vincent Hou (侯胜博)
> >
> > Staff Software Engineer, Open Standards and Open Source Team, Emerging
> > Technology Institute, IBM China Software Development Lab
> >
> > Tel: 86-10-82450778 Fax: 86-10-82453660
> > Notes ID: Sheng Bo Hou/China/IBM at IBMCN    E-mail: sbhou at cn.ibm.com
> > Address:3F Ring, Building 28 Zhongguancun Software Park, 8 Dongbeiwang
> > West Road, Haidian District, Beijing, P.R.C.100193
> > 地址:北京市海淀区东北旺西路8号中关村软件园28号楼环宇大厦3层 邮编：100193
> > __________________________________________________________________________
> > OpenStack Development Mailing List (not for usage questions)
> > Unsubscribe: OpenStack-dev-request at lists.openstack.org?subject:unsubscribe
> > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
> >
> >

I agree with Duncan,

There is a clear distinction between the projects' objectives:
- Cinder provides the canonical storage provisioning control plane in
  OpenStack for block storage as well as delivering a persistence model
  for instance storage.
- Manila is a File Share Service, in a similar manner, provides
  coordinated access to shared or distributed file systems.

So I wouldn't move out our NFS drivers.

As the relation between those is that while they both use the same
storage type they expose it completely different.

Cheers,
Gorka.