Open Stack

So is there any blueprint for this feature?

Best Regards
-- Ray


On Tue, Oct 29, 2013 at 1:48 PM, Razique Mahroua
<razique.mahroua at gmail.com>wrote:

> That’s is, OpenStack is not aware yet of the backend that servers the
> /var/lib/nova/instances directory ; not that I’m aware of :)
> - Razique
>
> On Oct 28, 2013, at 22:35, Ray Sun <xiaoquqi at gmail.com> wrote:
>
> Thanks for all your response.
>
> So libvirt can support ISCSI LUN, but OpenStack didn't provide such
> options yet?
>
> Best Regards
> -- Ray
>
>
> On Tue, Oct 29, 2013 at 1:11 AM, Razique Mahroua <
> razique.mahroua at gmail.com> wrote:
>
>> The only thing is that you need to create the volumes on your ISCSI
>> backend first, so libvirt can use them, otherwise as a shared storage,
>> works fine. ISCSI always gave me nice speeds compared to NFS
>>
>> On Oct 28, 2013, at 10:04, Chris Friesen <chris.friesen at windriver.com>
>> wrote:
>>
>> > That works for one client.  How do you synchronize access between
>> multiple clients?
>> >
>> > Also, for iSCSI it looks like libvirt can't create/delete volumes, that
>> needs to be done on the server.
>> >
>> > Chris
>> >
>> > On 10/28/2013 10:49 AM, Razique Mahroua wrote:
>> >> Libvrit does support ISCSI LUN as backends, meaning you can mount the
>> ISCSI block on every compute node and you should be fine
>> >> - Razique
>> >>
>> >> On Oct 28, 2013, at 8:54, Chris Friesen <chris.friesen at windriver.com>
>> wrote:
>> >>
>> >>> On 10/28/2013 09:35 AM, Ray Sun wrote:
>> >>>> Daniel,
>> >>>> Thanks for you response. But I am still confusing about use a iscsi
>> >>>> device, if I want to use it as shared storage, first I need to
>> attach to
>> >>>> a node as a block storage, then I mount it to other compute nodes
>> using
>> >>>> NFS. The problem is that this will make a big lost on performance.
>> >>>> Currently nova already support to create a new VM on ceph RBD, but
>> why
>> >>>> we can not create it on a block storage?
>> >>>
>> >>> ceph and NFS are both designed for simultaneous access by multiple
>> clients.
>> >>>
>> >>> iSCSI is not.
>> >>>
>> >>> Chris
>> >>>
>> >>>
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>>
>>
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