[pve-devel] savevm tests

[Dietmar Maurer]

> >>But limited (no support for arbitrary snapshot trees)?
> Yes indeed. (But try to do 1000 snapshots with qcow2 ;-)

I never tried that - is it slow? Or what is the problem?
 
> >>IMHO cloning has totally different requirements - we should not mix that.
> Yes/no : we need to snapshot for cloning (at least for
> sheepdog,rbd,nexenta).
>          qcow2 is a little different, as cloning is just an external snapshot.
>          But indeed, for now, working on snapshot is already a big work.
> 
> >>Besides, I just don't know how to implement nexenta snapshot support
> inside kvm.
> >>Do you want to call an external program which uses libpve-storage-perl?
> It's just an soap api. (like for create/delete nexenta volume).

And you want to implement that API twice? Not really an option for me.

> But yes,it's only disk snapshot, it's not possible to save the vmstate memory.

Yes, that is another drawback.