Open Stack

If you're trying to do what I think you are, which is to create a bootable
cinder volume (in rbd) using a glance image (in rbd), you can enable the
following in glance-api.conf:

show_image_direct_url = True

Enabling this will allow cinder to 'see' that the glance image is also in
rbd, and it will essentially make a fast copy-on-write clone of the glance
image into your cinder volume (effectively it's just an rbd clone from one
pool, images, into another, volumes).

- Darren


On 27 March 2014 10:46, Thomas Bernard <tbe at atolcd.com> wrote:

> Yes i have a 10G network between all my node (controller, compute &
> storage).
> I precise that i create new instance with "boot from image (create new
> volume)".
>
> --
> Le 27/03/2014 11:11, Ken Peng a écrit :
>
>  于 2014-3-27 17:21, Thomas Bernard 写道:
>>
>>> I use a Havana infrastructure with CEPH storage (cinder & rbd) and when
>>> i create new big volume this is very slow.
>>> Openstack provision all the space on CEPH cluster this is very very
>>> (very) slow.
>>>
>>
>> Do you have the enough bandwidth from compute nodes to the storage node?
>> For example, a 10G+bps connection link.
>>
>> _______________________________________________
>> Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/
>> openstack
>> Post to     : openstack at lists.openstack.org
>> Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/
>> openstack
>>
>
>
> _______________________________________________
> Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/
> openstack
> Post to     : openstack at lists.openstack.org
> Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/
> openstack
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstack.org/pipermail/openstack/attachments/20140327/98409a39/attachment.html>