>>Ah, you're right. We need to add an options field, or use a new
>>blockdev-mirror command.
Ok, thanks. Can't help to implement this, but I'll glad to help for testing.
- Mail original -
De: "Paolo Bonzini"
À: "Alexandre DERUMIER"
Cc: "Ceph Devel" , "qemu-devel"
Envoyé: Lundi 13 O
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 det
>>Lack of bdrv_co_write_zeroes is why detect-zeroes does not work.
>>
>>Lack of bdrv_get_block_status is why sparse->sparse does not work
>>without detect-zeroes.
Ok, thanks Paolo !
Both are missing in rbd block driver. @ceph-devel . Could it be possible to
implement them ?
Also, about drive-
Il 08/10/2014 13:15, Alexandre DERUMIER ha scritto:
> Hi,
>
> I'm currently planning to migrate our storage to ceph/rbd through qemu
> drive-mirror
>
> and It seem that drive-mirror with rbd block driver, don't create a sparse
> image. (all zeros are copied to the target rbd).
>
> Also note, t
2s to convert the empty file
(because it's skipping zero block), and drive mirror take around 5min.
- Mail original -
De: "Fam Zheng"
À: "Alexandre DERUMIER"
Cc: "qemu-devel" , "Ceph Devel"
Envoyé: Samedi 11 Octobre 2014 10:25:35
Objet: Re:
ph Devel"
Envoyé: Samedi 11 Octobre 2014 10:30:40
Objet: Re: [Qemu-devel] qemu drive-mirror to rbd storage : no sparse rbd image
On Sat, Oct 11, 2014 at 12:25 PM, Fam Zheng wrote:
> On Sat, 10/11 10:00, Alexandre DERUMIER wrote:
>> >>What is the source format? If the zero cluste
On Sat, Oct 11, 2014 at 12:25 PM, Fam Zheng wrote:
> On Sat, 10/11 10:00, Alexandre DERUMIER wrote:
>> >>What is the source format? If the zero clusters are actually unallocated
>> >>in the
>> >>source image, drive-mirror will not write those clusters either. I.e. with
>> >>"drive-mirror sync=top
On Sat, 10/11 10:00, Alexandre DERUMIER wrote:
> >>What is the source format? If the zero clusters are actually unallocated in
> >>the
> >>source image, drive-mirror will not write those clusters either. I.e. with
> >>"drive-mirror sync=top", both source and target should have the same
> >>"qemu-
t;Fam Zheng"
À: "Alexandre DERUMIER"
Cc: "qemu-devel" , "Ceph Devel"
Envoyé: Samedi 11 Octobre 2014 09:01:18
Objet: Re: [Qemu-devel] qemu drive-mirror to rbd storage : no sparse rbd image
On Wed, 10/08 13:15, Alexandre DERUMIER wrote:
> Hi,
>
> I&#
On Wed, 10/08 13:15, Alexandre DERUMIER wrote:
> Hi,
>
> I'm currently planning to migrate our storage to ceph/rbd through qemu
> drive-mirror
>
> and It seem that drive-mirror with rbd block driver, don't create a sparse
> image. (all zeros are copied to the target rbd).
>
> Also note, that i
Hi,
I'm currently planning to migrate our storage to ceph/rbd through qemu
drive-mirror
and It seem that drive-mirror with rbd block driver, don't create a sparse
image. (all zeros are copied to the target rbd).
Also note, that it's working fine with "qemu-img convert" , the rbd volume is
spa
11 matches
Mail list logo
