[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] Re: KVM call minutes for June 8
From: |
Kevin Wolf |
Subject: |
Re: [Qemu-devel] Re: KVM call minutes for June 8 |
Date: |
Thu, 10 Jun 2010 15:08:02 +0200 |
User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.9) Gecko/20100430 Fedora/3.0.4-2.fc12 Thunderbird/3.0.4 |
Am 10.06.2010 14:53, schrieb Anthony Liguori:
> On 06/10/2010 04:43 AM, Kevin Wolf wrote:
>>
>> Huh, why this? Seems I still haven't understood all of qcow2 then... I
>> always thought that there's just a specific offset where VM state
>> starts, but no explicit end.
>>
>
> A live snapshot can last for a very long time. What happens if you need
> to allocate a new block for disk I/O while saving a snapshot?
You allocate it, I guess?
Note that VM state must be virtually contiguous, but not necessarily
physically (virtually = on the virtual hard disk as seen by the guest;
physically = in the image file). It's just not seen by the guest because
it's saved at a high offset that is after the end of the real disk
content, but otherwise it should behave the same as guest data.
Kevin
- [Qemu-devel] KVM call minutes for June 8, Chris Wright, 2010/06/08
- [Qemu-devel] Re: KVM call minutes for June 8, Anthony Liguori, 2010/06/08
- Re: [Qemu-devel] Re: KVM call minutes for June 8, Luiz Capitulino, 2010/06/08
- Re: [Qemu-devel] Re: KVM call minutes for June 8, Anthony Liguori, 2010/06/08
- Re: [Qemu-devel] Re: KVM call minutes for June 8, Luiz Capitulino, 2010/06/09
- Re: [Qemu-devel] Re: KVM call minutes for June 8, Daniel P. Berrange, 2010/06/09
- Re: [Qemu-devel] Re: KVM call minutes for June 8, Anthony Liguori, 2010/06/09
- Re: [Qemu-devel] Re: KVM call minutes for June 8, Daniel P. Berrange, 2010/06/09
- Re: [Qemu-devel] Re: KVM call minutes for June 8, Kevin Wolf, 2010/06/10
- Re: [Qemu-devel] Re: KVM call minutes for June 8, Anthony Liguori, 2010/06/10
- Re: [Qemu-devel] Re: KVM call minutes for June 8,
Kevin Wolf <=
- Re: [Qemu-devel] Re: KVM call minutes for June 8, Avi Kivity, 2010/06/10
- Re: [Qemu-devel] Re: KVM call minutes for June 8, Kevin Wolf, 2010/06/10
- Re: [Qemu-devel] Re: KVM call minutes for June 8, Anthony Liguori, 2010/06/10
- Re: [Qemu-devel] Re: KVM call minutes for June 8, Luiz Capitulino, 2010/06/11
- Re: [Qemu-devel] Re: KVM call minutes for June 8, Anthony Liguori, 2010/06/11
- Re: [Qemu-devel] Re: KVM call minutes for June 8, Anthony Liguori, 2010/06/09