Re: [Qemu-devel] The image size of instance VM keeps growing

[Stefan Hajnoczi]

On Wed, May 23, 2012 at 2:11 PM, Michael Tokarev <address@hidden> wrote:
> On 23.05.2012 16:57, Stefan Hajnoczi wrote:
> []
>> However, the qcow2 file should not grow much beyond its virtual disk
>> size.  So if you find the qcow2 is 3G but the virtual disk size is 1G,
>> then there is a bug.  But from what you've posted so far I suspect the
>> guest is simply writing to the disk.
>
> Dont't forget about possible snapshots inside the qcow2 file.  So it
> is quite well possible to have qcow2 file sized much larger than virtual
> disk size :)

Right.  I said this earlier: "(assuming you are not using qcow2
snapshots where the file can grow arbitrarily)"