<div dir="ltr"><br><div class="gmail_extra"><br><br><div class="gmail_quote">On Mon, Jun 3, 2013 at 2:47 AM, Sylvain Bauza <span dir="ltr"><<a href="mailto:sylvain.bauza@digimind.com" target="_blank">sylvain.bauza@digimind.com</a>></span> wrote:<br>
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<div>Thanks Jerome for the clarification.<br>
I just posted out a blogpost for adding a Second volume to Cinder
in Folsom [3]. Maybe it could be merged with the official Folsom
Ubuntu Cinder documentation ? There is only H/A aspects that are
mentioned by now.<br>
<br>
Someone from the documentation team ? Could you please point me
out some materials for committing a new doc for that ?<br>
<br></div></div></blockquote><div><br></div><div style>Hi Sylvain, </div><div style>Would love to have an update for clarity. Since it affects just the stable/folsom branch of openstack-manuals, and there was no separate Block Storage Admin manual at that point in time, you'll want to update the Volumes chapter within the Compute Admin manual. To do so, follow the instructions on <a href="http://wiki.openstack.org/Documentation/HowTo">http://wiki.openstack.org/Documentation/HowTo</a>. As an outline of the steps: </div>
<div style>Git clone the openstack-manuals repository.</div><div style>Checkout a new branch based on remotes/origin/stable/folsom.</div><div style>Make your edits in <a href="https://github.com/openstack/openstack-manuals/blob/stable/folsom/doc/src/docbkx/openstack-compute-admin/computevolumes.xml">https://github.com/openstack/openstack-manuals/blob/stable/folsom/doc/src/docbkx/openstack-compute-admin/computevolumes.xml</a>.</div>
<div style>Git commit, git review, we'll review the patch and publish. </div><div style><br></div><div style>If that's all a bit too much, we can work on it from your blog entry, I've created this doc bug to track the work: <a href="https://bugs.launchpad.net/openstack-manuals/+bug/1187400">https://bugs.launchpad.net/openstack-manuals/+bug/1187400</a>. Feel free to assign yourself.</div>
<div style>Thanks!</div><div style>Anne</div><div style><br></div><div style><br></div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">
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Thanks,<br>
-Sylvain<br>
<br>
[3] :
<a href="http://sbauza.wordpress.com/2013/06/03/adding-a-second-cinder-volume-with-folsom/" target="_blank">http://sbauza.wordpress.com/2013/06/03/adding-a-second-cinder-volume-with-folsom/</a><br>
<br>
<br>
Le 31/05/2013 14:26, Jérôme Gallard a écrit :<br>
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<div dir="ltr">Hi Sylvain,
<div><br>
</div>
<div>Great to know that you found how to solve your
issue.</div>
<div><br>
</div>
<div>Thanks for reporting that you found the Grizzly
doc confusing.</div>
<div>
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).</div>
<div><br>
</div>
<div>Thanks a lot for your remarks,</div>
<div>Jérôme</div>
</div>
<div class="gmail_extra"><br>
<br>
<div class="gmail_quote">On Fri, May 31, 2013 at 1:55 PM,
Sylvain Bauza <span dir="ltr"><<a href="mailto:sylvain.bauza@digimind.com" target="_blank">sylvain.bauza@digimind.com</a>></span>
wrote:<br>
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<div>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.<br>
<br>
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 ?<br>
<br>
Anyway, I'm documenting out the process in my own (new)
blog. Keep tuned, I'll post the URL out there.<br>
<br>
-Sylvain<br>
<br>
<br>
<br>
Le 31/05/2013 11:39, Jérôme Gallard a écrit :<br>
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<div dir="ltr">Hi Sylvain,
<div><br>
</div>
<div>Maybe the folsom documentation for cinder
will help you:</div>
<div><a href="http://docs.openstack.org/folsom/openstack-compute/install/apt/content/osfolubuntu-cinder.html" target="_blank">http://docs.openstack.org/folsom/openstack-compute/install/apt/content/osfolubuntu-cinder.html</a><br>
</div>
<div><br>
</div>
<div><br>
</div>
<div>Regards,</div>
<div>Jérôme</div>
</div>
<div class="gmail_extra"><br>
<br>
<div class="gmail_quote">On Fri, May 31, 2013 at
9:21 AM, Sylvain Bauza <span dir="ltr"><<a href="mailto:sylvain.bauza@digimind.com" target="_blank">sylvain.bauza@digimind.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">Putting openstack-ops@
in the loop :-)<br>
<br>
Le 30/05/2013 17:26, Sylvain Bauza a écrit :
<div>
<div><br>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"> Le
30/05/2013 15:25, Sylvain Bauza a écrit
:<br>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"> Hi,<br>
<br>
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
?<br>
<br>
As per the doc [1], I would say the
answer is no, but could you please
confirm ?<br>
<br>
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).<br>
<br>
Thanks,<br>
-Sylvain<br>
<br>
[1] : <a href="http://docs.openstack.org/grizzly/openstack-block-storage/admin/content/multi_backend.html" target="_blank">http://docs.openstack.org/grizzly/openstack-block-storage/admin/content/multi_backend.html</a><br>
</blockquote>
<br>
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 ?<br>
<br>
[2] : <a href="https://lists.launchpad.net/openstack/msg21825.html" target="_blank">https://lists.launchpad.net/openstack/msg21825.html</a><br>
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