Open Stack

On October 3, 2013 12:44:50 PM Chris Friesen <chris.friesen at windriver.com> 
wrote:
>
> I was wondering if there is any interest in adding an "on_shared_storage" 
> field to the Instance class.  This would be set once at instance creation 
> time and we would then be able to avoid having the admin manually pass it 
> in for the various API calls (evacuate/rebuild_instance/migration/etc.)
>
> It could even be set automatically for the case of booting off block 
> storage, and maybe we add a config flag indicating that a given compute 
> node is using shared storage for its instances.
>
> This would also allow for "nova host-evacuate" to work properly if some of 
> the instances are on unshared storage and some are booting from block 
> storage (which is shared).  As it stands, the host-evacuate command assumes 
> that they're all the same.
>
> Thoughts?
>
> Chris

*What* is on shared storage?

The boot drive?
A snapshot of the running VM?