Re: migration and snapshots.

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On Sat, Jan 02, 2010 at 03:40:01PM -0800, J Nb wrote:
> Thanks.
> 
> It seems this is post 3.4 release.. any plans on getting these for older version ? (may be a question for xen-devel forum.)
> 

Yeah, blktap2 is only in xen-unstable.hg, not in xen-3.4-testing.hg. 
blktap2 will be part of upcoming Xen 4.0 release.

I believe the patches should apply to xen 3.4 aswell:
http://markmail.org/message/dqcil5uyigwlk2sr#query:+page:1+mid:ihjbbiicmegssg5v+state:results

-- Pasi

> What about KVM ? Is there a plan to get this in to qemu / kvm ? Also, make it available to older versions of qemu/kvm.
> 
> Just trying to see how this important feature can be used by people currently (which are using xen and kvm from their distros.)
> 
> -nb
> 
> 
> --- On Fri, 1/1/10, Pasi Kärkkäinen <pasik@xxxxxx> wrote:
> 
> > From: Pasi Kärkkäinen <pasik@xxxxxx>
> > Subject: Re: migration and snapshots.
> > To: "J Nb" <j_nwb@xxxxxxxxx>
> > Cc: "kvm" <kvm@xxxxxxxxxxxxxxx>
> > Date: Friday, January 1, 2010, 9:12 AM
> > On Wed, Dec 30, 2009 at 10:55:34AM
> > -0800, J Nb wrote:
> > > What would be a good storage topology for allowing for
> > migration as well as support snapshots (for backup)
> > > 
> > > Would love to hear recommendations as well as details
> > on setup that people are using. (I am assuming that this is
> > possible.)
> > > 
> > > Here is my current understanding..
> > > 
> > > LVM -- Snapshots but not shared.
> > > CLVM -- shared but no snapshots. (yet)
> > > NFS/GFS -- Shared FS but no snapshots 
> > > 
> > > 
> > > qcow2 files and VHD file supports snapshots... but VHD
> > is not yet available in Xen or KVM.
> > > 
> > 
> > blktap2 backend in Xen supports VHD.
> > 
> > See: http://markmail.org/message/dqcil5uyigwlk2sr
> > 
> > -- Pasi
> > 
> > 
> 
> 
> 
> 
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