openstack team mailing list archive

[Gui Maluf <guimalufb@xxxxxxxxx>]

I think renaming the existent volume to a name that cinder/nova-volume
recognize is enough.

On Thu, Oct 25, 2012 at 8:48 AM, Daniel Vázquez <daniel2d2art@xxxxxxxxx> wrote:
> If we create a volume out of openstack context (it's is not created on
> nova database) only on system level. Can we after add to openstack?
> reformulate ask, Can we add to openstack an existen volumen (it's
> living on nova-volumes group)? I'm not sure on nova-volume create
> command or horizon ... that behavior it will be with existent lv label
> or some other properties.
>
> 2012/10/24 Daniel Vázquez <daniel2d2art@xxxxxxxxx>:
>> Yeah!! Jon, I'm agree with you about organization/separation LVM
>> groups, this is for very very very special situation.
>> Any case if I use nova pattern labeling via logical volumen creation
>> or via renaming label, I hope can switch the content of this custom
>> logical volument to use with openstack, an attach to a VM in future.
>>
>>
>>
>> 2012/10/24 Jonathan Proulx <jon@xxxxxxxxxxxxx>:
>>> On Wed, Oct 24, 2012 at 08:56:26PM +0200, Daniel Vázquez wrote:
>>> :Hi here!
>>> :
>>> :Can we create and use news logical volumes for own/custom use(out of
>>> :openstack) on nova-volumes openstack LVM group, and use it beside
>>> :openstack operational?
>>> :IMO it's LVM and no problem, but it has openstack collateral consequences?
>>>
>>> If you are talking about creating random logical volumes for
>>> non-openstack use in the same volume group nova-volume or cinder is
>>> using to create volumes (lv are in the same vg but don't otherwise
>>> interact), yes you can do that without ocnfusing openstack or having
>>> your volumes trampled.  For example only having one volume group and
>>> using that for operating system partitions as well as volume-<foo>
>>> volumes for cinder
>>>
>>> I don't think it's a particularly good idea from an organizational
>>> standpoint I'd rather have distinct vg's for each purpose so it is
>>> clear which resources are operating system and which are data, but in
>>> my environment (a private computing/research cloud with a small admin
>>> group and 1k users in a few 10's of closely related tenents) it's
>>> probably more an aesthetic than technical choice.  The larger and more
>>> diverse your situation the stronger I'd argue for keeping them in
>>> seperate VGs.
>>>
>>> -Jon
>
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-- 
guilherme \n
\tab maluf