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Re: [Xen-devel] Test report: Migration from 4.1 to 4.2 works

On Fri, 2012-08-31 at 12:30 +0100, Jan Beulich wrote:
> >>> On 31.08.12 at 13:04, Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx> wrote:
> > Migration 4.1 xend -> 4.2 xl
> >   Needs to be done with xl
> >   Stop xend on source, which leaves domain running and manipulable by xl
> >   xl migrate -C /etc/xen/debian.guest.osstest.cfg domain potato-beetle
> >   Works.
> Is that really an acceptable approach? What if you have multiple
> VMs running, and want to migrate just part of them? All the other
> would remain unmanageable at least for the duration of the
> migration(s). (And I also wonder if 4.1's xl is complete/stable
> enough to recommend such an approach as a general mechanism.)

The alternative I suppose would be to:
      * start xend on new host (running 4.2)
      * migrate the domains you want over to the new system
      * stop xend on the new host
      * xl migrate localhost for each domain.


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