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I'm sorry, my mistake due to my negligence, pls ignore my above reply.
sorry.

On Mon, Feb 2, 2015 at 4:04 PM, Joshua Zhang <joshua.zhang at canonical.com>
wrote:

> 长波，
>       你对oslo比较熟，能帮我看看这个问题吗，
> https://answers.launchpad.net/oslo.config/+question/261550
>
> On Tue, Jan 27, 2015 at 12:13 PM, ChangBo Guo <glongwave at gmail.com> wrote:
>
>> Hi ALL,
>>
>> I have been working on bug 1414432 [1] recently,  I would like do more
>> discussion before further work.
>>
>> I'm talking about libvirt driver( maybe fit for other hypervisor),  there
>> are two kinds of  storages  which are used for  instance's  root_disk.
>> 1) non-shared storage  on each compute nodes
>> 2) shared storage  between compute nodes
>>     2.1 shared  instance_path and  root_disk  (shared everything ike NFS)
>>     2.2 shared  root_disk  without shared instance_path  (shared volume
>> backend like ceph)
>>
>> Current we  check if shared storage or not  in  concrete actions like
>> live-migration,  evacuate,  these need pass instance as argument,
>> I think the value of  hared storage or not should base on compute node,
>> should not base on instance.
>> So do we need new nova configuration option to show compute nodes with
>> shared_storage or not ?
>>
>> benefits:
>>
>>    1) Don't need check for each instance while taking action
>>    2) Can handle similar bug easily like [1] from API level.
>>
>> If yes,
>> some thing like, compute-node-storage-type= [ non-shared |  shared-all |
>> shared-volume ]  or part-shared
>>  In order to support some compute nodes with shared_storage, and others
>> doesn't in one OpenStack development,
>>  another configuration   shared_storage_compute_nodes =[node3, node5]
>>
>> Any thoughts ?
>>
>>
>> [1]https://bugs.launchpad.net/nova/+bug/1414432
>>
>> --
>> ChangBo Guo(gcb)
>>
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>>
>>
>
>
> --
> Best Regards
> Zhang Hua(张华）
> Software Engineer | Canonical
> IRC:  zhhuabj
>



-- 
Best Regards
Zhang Hua(张华）
Software Engineer | Canonical
IRC:  zhhuabj
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