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Re: [Qemu-devel] [PATCH] qemu-img: Add --backing-chain option to info co
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From: |
Eric Blake |
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Subject: |
Re: [Qemu-devel] [PATCH] qemu-img: Add --backing-chain option to info command |
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Date: |
Fri, 12 Oct 2012 08:18:09 -0600 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:15.0) Gecko/20120911 Thunderbird/15.0.1 |
On 10/12/2012 08:09 AM, Stefan Hajnoczi wrote:
> The qemu-img info --backing-chain option enumerates the backing file
> chain. For example, for base.qcow2 <- snap1.qcow2 <- snap2.qcow2 the
> output becomes:
>
> $ qemu-img info --backing-chain snap2.qcow2
> image: snap2.qcow2
> file format: qcow2
> virtual size: 100M (104857600 bytes)
> disk size: 196K
> cluster_size: 65536
> backing file: snap1.qcow2
> backing file format: qcow2
>
> image: snap1.qcow2
> file format: qcow2
> virtual size: 100M (104857600 bytes)
> disk size: 196K
> cluster_size: 65536
> backing file: base.qcow2
> backing file format: qcow2
>
> image: base.qcow2
> file format: qcow2
> virtual size: 100M (104857600 bytes)
> disk size: 136K
> cluster_size: 65536
>
> Signed-off-by: Stefan Hajnoczi <address@hidden>
Very useful.
Reviewed-by: Eric Blake <address@hidden>
--
Eric Blake address@hidden +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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Re: [Qemu-devel] [PATCH] qemu-img: Add --backing-chain option to info command, Kashyap Chamarthy, 2012/10/12