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On Thu, 6 Jun 2013, Day, Phil wrote:

> Hi Scott,
>
> Just to be clear I'm not proposing that we change the current approach to having a shared backing file with a FS in it as part of this change.  I agree that would need wider discussion in a separate thread,  and probably took us down a bit of a rat hole by talking about the issues with that.

But why couple ephemeral and root size?  Thats what I'm missing.
If you dont do that, then I understand everything (i think).

https://blueprints.launchpad.net/nova/+spec/variable-size-root-disk
doesn't seem to have any justification for that.  It seems orthogonal to
me.