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Sorry , I mean use the NFS driver as the cinder-backup_driver.I see the remotefs code achieve the create_volume_from snapshot[1],in this function the snapshot.status must be available. But before this in the api part, the snapshot.status was changed to the backing_up status[2].Is there something wrong?Can you tell me more about this?Thank you very much.




[1]https://github.com/openstack/cinder/blob/master/cinder/volume/drivers/remotefs.py#L1259
[2]https://github.com/openstack/cinder/blob/master/cinder/backup/api.py#L292
------------------ Original ------------------
From:  "Eric Harney"<eharney at redhat.com>;
Date:  Fri, Nov 2, 2018 10:00 PM
To:  "jsbryant"<jsbryant at electronicjungle.net>; "OpenStack Developmen"<openstack-dev at lists.openstack.org>; 

Subject:  Re: [openstack-dev] [cinder] about use nfs driver to backup the volume snapshot

 
On 11/1/18 4:44 PM, Jay Bryant wrote:
> On Thu, Nov 1, 2018, 10:44 AM Rambo <lijie at unitedstack.com> wrote:
> 
>> Hi,all
>>
>>       Recently, I use the nfs driver as the cinder-backup backend, when I
>> use it to backup the volume snapshot, the result is return the
>> NotImplementedError[1].And the nfs.py doesn't has the
>> create_volume_from_snapshot function. Does the community plan to achieve
>> it which is as nfs as the cinder-backup backend?Can you tell me about
>> this?Thank you very much!
>>
>> Rambo,
> 
> The NFS driver doesn't have full snapshot support. I am not sure if that
> function missing was an oversight or not. I would reach out to Eric Harney
> as he implemented that code.
> 
> Jay
> 

create_volume_from_snapshot is implemented in the NFS driver.  It is in 
the remotefs code that the NFS driver inherits from.

But, I'm not sure I understand what's being asked here -- how is this 
related to using NFS as the backup backend?


>>
>>
>> [1]
>> https://github.com/openstack/cinder/blob/master/cinder/volume/driver.py#L2142
>>
>>
>>
>>
>>
>>
>>
>>
>> Best Regards
>> Rambo

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