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For example, We have lots of flavor, the root disk vary from 20G to 
100G, memory vary from 512M to 16384M. Some times user want to create a 
instance with low memory but huge root disk. But there are no limit of 
root disk, so I want to find some quotas of these two.

On the other hand, a flavor contains memory, disk, ephemeral, swap, 
vcpus. Just memory and vcpu have quota. And we have quota of instance 
count. Besides some guy want to add flavor-specific-instance-quotas, 
that is awesome. So I think add quota for disk, ephemeral and even swap 
will be good, which make quota system more powerful, complete.

On 2013年04月15日 14:49, Lloyd Dewolf wrote:
> Correct, there are quotas on number of volumes and total size.
>
> I hadn't really thought on it before that flavors in combination with
> quotas you can restrict other resources more strictly than storage,
> though generally that seems to make sense.
>
> Could you explain your use case?
>
>
> On Sun, Apr 14, 2013 at 11:33 PM, Tian Gao <gtt116 at gmail.com> wrote:
>> There is quota of volumes in cinder, but I need quota of root disk, and
>> ephemeral disk. I think these two quota should be stay in nova rathen in
>> cinder. is it right?
>>
>>
>> On 2013年04月15日 14:25, Lloyd Dewolf wrote:
>>> On Sun, Apr 14, 2013 at 11:16 PM, Tian Gao <gtt116 at gmail.com> wrote:
>>>> Hi all,
>>>>
>>>> I found these are quotas of swap, CPU, and so on. But I don't find quota
>>>> of
>>>> root disk, and ephemeral disk. Is that deliberate? or just maybe a
>>>> forgetting?
>>> There are... what release and configuration of OpenStack are you
>>> using? -- possibly check out the Cinder API as well.
>>>
>>> https://ask.openstack.org/ might be another good forum for your
>>> question as it allows fleshing out the details iteratively.
>>>
>>> Cheers,
>>> --
>>> @lloyddewolf
>>> http://www.pistoncloud.com/
>>
>
>
> --
> --
> @lloyddewolf
> http://www.pistoncloud.com/