Hi Sylvain,
Great to know that you found how to solve your issue.
Thanks for reporting that you found the Grizzly doc confusing.
In fact, the Grizzly release introduced the multi-backend feature.
This feature allows to have more than one backend on a same compute
(ie, to be able to have several cinder-volume running on a same
compute). This feature is not available in Folsom: you can only run
one cinder-volume per compute (in that case, if you want to manage
several backends, you have to have several computes).
Thanks a lot for your remarks,
Jérôme
On Fri, May 31, 2013 at 1:55 PM, Sylvain Bauza
<sylvain.bauza@xxxxxxxxxxxx <mailto:sylvain.bauza@xxxxxxxxxxxx>> wrote:
Thanks but it didn't match my needs. I already know how to deploy
Cinder on a single host, my point was more relative to deploying a
second Cinder-volume instance, and if yes, what to do.
Nevermind, I successed in deploying a second Cinder-volume, just
by looking at the packages and the confs. It's pretty
straightforward, so I'm not surprised it wasn't documented.
Nevertheless, I think that the Grizzly doc I mentioned [1] is
confusing : by looking at it, I was thinking Cinder was unable to
have two distinct volumes with Folsom release. Maybe updating the
folsom branch for Cinder documentation, precising it *is*
possible, is worth a try ?
Anyway, I'm documenting out the process in my own (new) blog. Keep
tuned, I'll post the URL out there.
-Sylvain
Le 31/05/2013 11:39, Jérôme Gallard a écrit :
Hi Sylvain,
Maybe the folsom documentation for cinder will help you:
http://docs.openstack.org/folsom/openstack-compute/install/apt/content/osfolubuntu-cinder.html
Regards,
Jérôme
On Fri, May 31, 2013 at 9:21 AM, Sylvain Bauza
<sylvain.bauza@xxxxxxxxxxxx <mailto:sylvain.bauza@xxxxxxxxxxxx>>
wrote:
Putting openstack-ops@ in the loop :-)
Le 30/05/2013 17:26, Sylvain Bauza a écrit :
Le 30/05/2013 15:25, Sylvain Bauza a écrit :
Hi,
It sounds quite unclear for me about the possibility
*in Folsom* to have two distinct Cinder hosts having
each one LVM backend called cinder-volumes ?
As per the doc [1], I would say the answer is no, but
could you please confirm ?
If so, do you have any idea on how to trick a nearly
full LVM cinder-volumes VG ? (I can't hardly add a
new disk for adding a second PV).
Thanks,
-Sylvain
[1] :
http://docs.openstack.org/grizzly/openstack-block-storage/admin/content/multi_backend.html
Replying to myself. As per [2], it seems having a
multiple cinder-volume setup in Folsom is achiveable.
Could someone from Cinder confirm that this setup is OK ?
[2] : https://lists.launchpad.net/openstack/msg21825.html
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