Hi cinder team: We met a problem about backup create recently. The backup can be created from volumes or snapshots. In the both cases, the volume' s status is set to 'backing-up'.
But as I know, when users create backup with snapshots, the volume is not used(Correct me if I'm wrong). So why the volume's status is changed ? Should it keep available? It's a little strange that the volume is "backing-up" but actually only the snapshot is used for backup creation. the volume in "backing-up" means that it can't be used for some other actions. Such as: attach, delete, export to image, extend, create from volume, create backup from volume and so on. So is there any reason we changed the volume' status here? Or is there any third part driver need the volume's status must be "backing-up" when create backup from snapshots? Thanks!
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