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Re: [Qemu-devel] Online image backup
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From: |
Fabrice Bellard |
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Subject: |
Re: [Qemu-devel] Online image backup |
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Date: |
Wed, 21 Nov 2007 00:02:16 +0100 |
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User-agent: |
Thunderbird 1.5.0.9 (X11/20070212) |
Matteo Bertini wrote:
> Hello everyone,
>
> is there any support for an online image backup? Or some direction to
> have it?
>
> Imagine I have an emulated server. How can I make an online backup of
> the server state?
>
> If I'm right in the actual design this is very hard.
>
> Or there are some image internals update rules that permit a consistent
> copy possible?
It should not be difficult provided the VM is using the QEMU qcow2 image
format (doing a backup can be seen as a kind of snapshot).
Fabrice.