On 11/02/2012 09:18 AM, Kuniyasu Suzaki wrote:
>> 1. Make the original image read-only accessible over NFS.
>> 2. Modify QEMU to create two external snapshot files when the VM is
>> paused for migration (during your fork operation):
>>
>> /host-a/original.qcow2
>> /host-a/new.qcow2 (backing file: /
On 11/02/2012 09:00 AM, Kuniyasu Suzaki wrote:
>> You are not the first to request this - libvirt would also like the
>> ability to have read-only access into the contents of an internal
>> snapshot while the rest of qemu continues to write into the image.
>
> Do you mean that libvirt can change t
Hello Stefan,
From: Stefan Hajnoczi
Subject: Re: [Qemu-devel] live migration which includes previos snapshot
Date: Fri, 2 Nov 2012 11:30:25 +0100
> If you are forking the VM so that there will be two VMs running
> simultaneously, then a single qcow2 file cannot be used.
>
>
Hello Eric,
From: Eric Blake
Subject: Re: [Qemu-devel] live migration which includes previos snapshot
Date: Fri, 02 Nov 2012 07:12:21 -0600
> On 11/02/2012 04:30 AM, Stefan Hajnoczi wrote:
>
> > II. If you want to use internal snapshots in a single qcow2 file, you
> > will n
On 11/02/2012 04:30 AM, Stefan Hajnoczi wrote:
> II. If you want to use internal snapshots in a single qcow2 file, you
> will need to modify QEMU code more:
> 1. Implement BlockDriverState snapshot slave support so a qcow2
> snapshot can be read-only accessed as a BlockDriverState while the
> mast
On Fri, Nov 2, 2012 at 9:24 AM, Kuniyasu Suzaki wrote:
>
> Hello Stefan,
>
> From: Stefan Hajnoczi
> Subject: Re: [Qemu-devel] live migration which includes previos snapshot
> Date: Fri, 2 Nov 2012 08:19:15 +0100
>
>> On Fri, Nov 2, 2012 at 4:15 AM, Kuniyasu S
Hello Stefan,
From: Stefan Hajnoczi
Subject: Re: [Qemu-devel] live migration which includes previos snapshot
Date: Fri, 2 Nov 2012 08:19:15 +0100
> On Fri, Nov 2, 2012 at 4:15 AM, Kuniyasu Suzaki wrote:
> > Can live migration of QEMU include previous snapshot images?
> > I wa
On Fri, Nov 2, 2012 at 4:15 AM, Kuniyasu Suzaki wrote:
> Can live migration of QEMU include previous snapshot images?
> I want to roll back to a previous snapshot image on another machine
> after live migration.
>
> I was thinking Block Migration bring the snapshot images of QCOW2, but
> Block Mig
Hello,
Can live migration of QEMU include previous snapshot images?
I want to roll back to a previous snapshot image on another machine
after live migration.
I was thinking Block Migration bring the snapshot images of QCOW2, but
Block Migration transfers the hard disk image only.
Do I have other
