[openstack-dev] [nova] Do any hyperviors allow disk reduction as part of resize ?
philip.day at hp.com
Wed Jun 18 11:05:01 UTC 2014
> -----Original Message-----
> From: Russell Bryant [mailto:rbryant at redhat.com]
> Sent: 17 June 2014 15:57
> To: OpenStack Development Mailing List (not for usage questions)
> Subject: Re: [openstack-dev] [nova] Do any hyperviors allow disk reduction
> as part of resize ?
> On 06/17/2014 10:43 AM, Richard W.M. Jones wrote:
> > On Fri, Jun 13, 2014 at 06:12:16AM -0400, Aryeh Friedman wrote:
> >> Theoretically impossible to reduce disk unless you have some really
> >> nasty guest additions.
> > True for live resizing.
> > For "dead" resizing, libguestfs + virt-resize can do it. Although I
> > wouldn't necessarily recommend it. In almost all cases where someone
> > wants to shrink a disk, IMHO it is better to sparsify it instead (ie.
> > virt-sparsify).
> FWIW, the resize operation in OpenStack is a dead one.
Dead as in "not supported in V3" ?
How does that map into the plans to implement V2.1 on top of V3 ?
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