Re: [Xen-devel] [RFC V7 3/3] xl snapshot-xxx Design

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Wed, 2014-10-29 at 02:32 -0600, Chun Yan Liu wrote:
> >> >   
> >> > 4. xl snapshot-xxx implementation details  
> >>   
> >> How do these interact with xl create/destroy/shutdown/save/restore?  
> >>   
> >> e.g. does destroying a domain remove any snapshots?  
> >  
> > Since in xl domain is deleted when destroyed/shutdown/save, no state 
> > like previously in xend, created but not started, deleted only when issue 
> > 'delete' command. 
> >  
> > I don't think clearly now about: 
> > how to handle snapshots when destroy/shutdown/save/migrate a domain. 
> > In theory, if a domain is deleted, the snapshots should all be deleted. 
> > But this way, I don't know how much value this operation can bring to 
> > users. 
> > Those snapshot are still usable. One can start a new domain from a 
> > snapshot. 
> > There is memory state (can restore memory, restore config) and disk 
> > snapshot (can restore disk status). 
> >  
> > Do you have any suggestions? 
> 
> As described above, is there any suggestions?

I'm afraid not, it all depends on the usecases I suppose.

Ian.


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