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xen-devel
Re: [Xen-devel] Fw: Re: migration and snapshots / Xen blktap2 support
On Sat, Jan 02, 2010 at 03:44:03PM -0800, J Nb wrote:
> >From the thread it looks like it made it in post 3.4.
>
> Can this be made available to Xen in existing distros ? (RHEL/SLES)
> So that people can reliably use it ?
>
I don't know if there are plans to backport blktap2 to
xen-3.4-testing.hg. Maybe Keir can comment more.
The patches that were applied to xen-unstable in May 2009 should be easy
to apply to xen-3.4-testing.hg aswell.. I think.
I think Citrix XenServer and Xen Cloud Platform (XCP) are going to use
blktap2.. with Xen 3.4.
> Also, it is not clear (to me) if this is done for PV or HVM or both ?
>
I believe it's for both PV and HVM, just like the first generation blktap is.
-- Pasi
> Thanks
> -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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> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-devel
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