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Hi, 

Thanks for info.

" And then boot an instance from volume using this image." 

Does it mean that ,by booting in that way such an image , it will be  created  a volume "dedicated" for this instance ?

Then I may stop this instance and run it on another compute node ? or migrate it "live" to another compute node ?

Regards,

J.P.

-----Original Message-----
From: mitsuhiro.tanino at hds.com [mailto:mitsuhiro.tanino at hds.com] 
Sent: jeudi 2 juin 2016 20:12
To: Jean-Pierre Ribeauville; openstack at lists.openstack.org
Subject: Re: [Openstack] cinder_img_volume_type value for a NFS shared storage ...

Hi Jean-Pierre,

> Related to my use case ,  what  should be the value of the 
> cinder_img_volume_type property I've to add to the image :/ nfstype or 
> nfsbackend ?/

You need to choose a glance image which has "nfstype" volume_type in the property cinder_img_volume_type.
If you don't have a image which has cinder_img_volume_type, then you can add using glance image-update like this.

$ glance image-update 1a88d5b1-3fa5-4d4c-bbad-f9d8e17de4be --property cinder_img_volume_type=nfstype
+------------------------+--------------------------------------+
| Property               | Value                                |
+------------------------+--------------------------------------+
| checksum               | 0fef54b59af5c13294d7ceea8e96e9f6     |
| cinder_img_volume_type | nfstype                              |
| container_format       | bare                                 |
| created_at             | 2016-05-05T00:21:16Z                 |
| disk_format            | qcow2                                |
| id                     | 1a88d5b1-3fa5-4d4c-bbad-f9d8e17de4be |
| min_disk               | 0                                    |
| min_ram                | 0                                    |
| name                   | fc20                                 |
| owner                  | d0bcc647ca1b48758694dde4685a9764     |
| protected              | False                                |
| size                   | 220790784                            |
| status                 | active                               |
| tags                   | []                                   |
| updated_at             | 2016-06-02T18:04:15Z                 |
| virtual_size           | None                                 |
| visibility             | public                               |
+------------------------+--------------------------------------+

And then boot an instance from volume using this image.

Thanks,
Mitsuhiro Tanino

On 06/02/2016 09:15 AM, Jean-Pierre Ribeauville wrote:
> Hi,
>
>
>
> In order to us NFS backend , and following this article :
>
>
>
> /https://access.redhat.com/articles/1323213/
>
>
>
> I've created a new nfstype within cinder .
>
>
>
>
>
> /# *cinder extra-specs-list*/
>
> /+--------------------------------------+---------+-------------------
> ----------------------+/
>
> /|                  ID                  |   Name  |               extra_specs               |/
>
> /+--------------------------------------+---------+-------------------
> ----------------------+/
>
> /| bbff44b5-52b1-43d6-beb4-83aa2d20bc59 | nfstype | 
> {u'volume_backend_name': u'nfsbackend'} |/
>
> /| f8d31dc8-a20e-410c-81bf-6b0a971c61a0 |  iscsi  |     {u'volume_backend_name': u'lvm'}    |/
>
> /+--------------------------------------+---------+-------------------
> ----------------------+/
>
>
>
> Now , my goal is to create an instance  that will be bootable from a nfs volume.
>
>
>
> As said here :
>
>
>
> http://docs.openstack.org/user-guide/cli_nova_launch_instance_from_vol
> ume.html
>
>
>
>
>
> i/f you want to create a volume to a specific storage backend, you 
> need to use an image which has //cinder_img_volume_type//property. In 
> this case, a new volume will be created as //storage_backend1//volume 
> type./
>
>
>
> Related to my use case ,  what  should be the value of the 
> /cinder_img_volume_type///property I've to add to the image :/ nfstype 
> or nfsbackend ?/
>
> / /
>
> I understand that , if all stuff is going well ,  a new volume will be created to host the instance , no ephemeral storage will be used for this instance ( making it movable between compute nodes ) ?
>
>
>
> Am I right ?
>
> / /
>
> Thx for help.
>
>
>
> Regards,
>
>
>
> Jean-Pierre RIBEAUVILLE
>
>
>
> +33 1 4717 2049
>
>
>
> axway_logo_tagline_87px
>
>
>
>
>
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