[openstack-dev] [cinder] the ability about list the available volume back-ends and their capabilities

Zhangleiqiang (Trump) zhangleiqiang at huawei.com
Fri Apr 4 08:47:24 UTC 2014


Hi, Mike:

	Thanks for your time and your advice. 
	
	I will contact Avishay in #openstack-cinder tonight.


----------
zhangleiqiang (Trump)

Best Regards


> -----Original Message-----
> From: Mike Perez [mailto:thingee at gmail.com]
> Sent: Friday, April 04, 2014 1:51 AM
> To: OpenStack Development Mailing List (not for usage questions)
> Subject: Re: [openstack-dev] [cinder] the ability about list the available volume
> back-ends and their capabilities
> 
> On 06:11 Thu 03 Apr     , Zhangleiqiang (Trump) wrote:
> > Hi stackers:
> >
> >     I think the ability about list the available volume back-ends, along with
> their capabilities, total capacity, available capacity is useful for admin. For
> example, this can help admin to select a destination for volume migration.
> > But I can't find the cinder api about this ability.
> >
> >     I find a BP about this ability:
> > https://blueprints.launchpad.net/cinder/+spec/list-backends-and-capabi
> > lities But the BP is not approved. Who can tell me the reason?
> 
> Hi Zhangleiqiang,
> 
> I think it's not approved because it has not been set to a series goal by the
> drafter. I don't have permission myself to change the series goal, but I would
> recommend going into the #openstack-cinder IRC channel and ask for the BP to
> be set for the Juno release assuming there is a good approach. We'd also need
> a contributor to take on this task.
> 
> I think it would be good to use the os-hosts extension which can be found in
> cinder.api.contrib.hosts and add the additional response information there. It
> already lists total volume/snapshot count and capacity used [1].
> 
> [1] - http://paste.openstack.org/show/74996
> 
> --
> Mike Perez
> 
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