From: Paolo Bonzini <pbonzini@redhat.com>
To: Alexandre DERUMIER <aderumier@odiso.com>
Cc: Ceph Devel <ceph-devel@vger.kernel.org>,
qemu-devel <qemu-devel@nongnu.org>
Subject: Re: qemu drive-mirror to rbd storage : no sparse rbd image
Date: Mon, 13 Oct 2014 09:06:01 +0200 [thread overview]
Message-ID: <543B79D9.2000806@redhat.com> (raw)
In-Reply-To: <9fe0fedc-802d-4838-b738-c3d0932eeeda@mailpro>
Il 13/10/2014 08:06, Alexandre DERUMIER ha scritto:
>
> Also, about drive-mirror, I had tried with detect-zeroes with simple qcow2 file,
> and It don't seem to help.
> I'm not sure that detect-zeroes is implement in drive-mirror.
>
> also, the target mirrored volume don't seem to have the detect-zeroes option
>
>
> # info block
> drive-virtio1: /source.qcow2 (qcow2)
> Detect zeroes: on
>
> #du -sh source.qcow2 : 2M
>
> drive-mirror source.qcow2 -> target.qcow2
>
> # info block
> drive-virtio1: /target.qcow2 (qcow2)
>
> #du -sh target.qcow2 : 11G
>
Ah, you're right. We need to add an options field, or use a new
blockdev-mirror command.
Paolo
WARNING: multiple messages have this Message-ID (diff)
From: Paolo Bonzini <pbonzini@redhat.com>
To: Alexandre DERUMIER <aderumier@odiso.com>
Cc: Ceph Devel <ceph-devel@vger.kernel.org>,
qemu-devel <qemu-devel@nongnu.org>
Subject: Re: [Qemu-devel] qemu drive-mirror to rbd storage : no sparse rbd image
Date: Mon, 13 Oct 2014 09:06:01 +0200 [thread overview]
Message-ID: <543B79D9.2000806@redhat.com> (raw)
In-Reply-To: <9fe0fedc-802d-4838-b738-c3d0932eeeda@mailpro>
Il 13/10/2014 08:06, Alexandre DERUMIER ha scritto:
>
> Also, about drive-mirror, I had tried with detect-zeroes with simple qcow2 file,
> and It don't seem to help.
> I'm not sure that detect-zeroes is implement in drive-mirror.
>
> also, the target mirrored volume don't seem to have the detect-zeroes option
>
>
> # info block
> drive-virtio1: /source.qcow2 (qcow2)
> Detect zeroes: on
>
> #du -sh source.qcow2 : 2M
>
> drive-mirror source.qcow2 -> target.qcow2
>
> # info block
> drive-virtio1: /target.qcow2 (qcow2)
>
> #du -sh target.qcow2 : 11G
>
Ah, you're right. We need to add an options field, or use a new
blockdev-mirror command.
Paolo
next prev parent reply other threads:[~2014-10-13 7:06 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <54c55fc6-b12a-42e5-b99d-9752c8a9b19b@mailpro>
2014-10-08 11:15 ` qemu drive-mirror to rbd storage : no sparse rbd image Alexandre DERUMIER
2014-10-08 11:15 ` [Qemu-devel] " Alexandre DERUMIER
2014-10-11 7:01 ` Fam Zheng
2014-10-11 7:01 ` Fam Zheng
2014-10-11 8:00 ` Alexandre DERUMIER
2014-10-11 8:00 ` Alexandre DERUMIER
2014-10-11 8:25 ` Fam Zheng
2014-10-11 8:25 ` Fam Zheng
2014-10-11 8:30 ` Andrey Korolyov
2014-10-11 8:30 ` Andrey Korolyov
2014-10-12 10:02 ` Alexandre DERUMIER
2014-10-12 10:02 ` Alexandre DERUMIER
2014-10-12 10:33 ` Alexandre DERUMIER
2014-10-12 10:33 ` Alexandre DERUMIER
2014-10-12 13:02 ` Paolo Bonzini
2014-10-12 13:02 ` [Qemu-devel] " Paolo Bonzini
2014-10-13 6:06 ` Alexandre DERUMIER
2014-10-13 6:06 ` [Qemu-devel] " Alexandre DERUMIER
2014-10-13 7:06 ` Paolo Bonzini [this message]
2014-10-13 7:06 ` Paolo Bonzini
2014-10-13 8:08 ` Alexandre DERUMIER
2014-10-13 8:08 ` [Qemu-devel] " Alexandre DERUMIER
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