From: Kevin Wolf <kwolf@redhat.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] delvm does not reduce the qcow2 file size
Date: Mon, 15 Oct 2012 16:24:11 +0200 [thread overview]
Message-ID: <507C1C8B.2060205@redhat.com> (raw)
In-Reply-To: <507C0EBC.3030805@redhat.com>
Am 15.10.2012 15:25, schrieb Paolo Bonzini:
> Il 15/10/2012 11:33, Kuniyasu Suzaki ha scritto:
>> Hello,
>>
>> "delvm" is a command to delete a snapshot image in a qcow2 file.
>> However it does not reduce the qcow2 file size.
>
> Note that the file will not grow when new allocations are performed in
> the future.
>
> QEMU should also convert the unused clusters to "holes" in the file
> system, but it doesn't do that yet.
>
>> Is there any method to reduce the qcow2 file size when I delete a snapshot image?
>> should I "convert" the qcow2 file?
>
> I'm not sure what convert does if you have internal snapshots.
It loses the snapshots.
Kevin
next prev parent reply other threads:[~2012-10-15 14:24 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-15 9:33 [Qemu-devel] delvm does not reduce the qcow2 file size Kuniyasu Suzaki
2012-10-15 13:25 ` Paolo Bonzini
2012-10-15 14:24 ` Kevin Wolf [this message]
2012-10-16 6:23 ` Kuniyasu Suzaki
2012-10-16 6:54 ` Paolo Bonzini
2012-10-16 11:06 ` Kuniyasu Suzaki
2012-10-16 11:19 ` Paolo Bonzini
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