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Date: Thu, 21 May 2015 16:35:13 +0800
From: Wen Congyang <wency@cn.fujitsu.com>
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Subject: Re: [Qemu-devel] [PATCH COLO v4 01/15] docs: block replication's
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To: Andrey Korolyov <andrey@xdel.ru>, "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Cc: Kevin Wolf <kwolf@redhat.com>, Fam Zheng <famz@redhat.com>, Wen Congyang <ghostwcy@gmail.com>, qemu block <qemu-block@nongnu.org>, Jiang Yunhong <yunhong.jiang@intel.com>, Dong Eddie <eddie.dong@intel.com>, qemu devel <qemu-devel@nongnu.org>, Max Reitz <mreitz@redhat.com>, Lai Jiangshan <laijs@cn.fujitsu.com>, Gonglei <arei.gonglei@huawei.com>, Stefan Hajnoczi <stefanha@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>, Yang Hongyang <yanghy@cn.fujitsu.com>, zhanghailiang <zhang.zhanghailiang@huawei.com>

On 05/21/2015 12:31 AM, Andrey Korolyov wrote:
> On Thu, May 14, 2015 at 6:38 PM, Dr. David Alan Gilbert
> <dgilbert@redhat.com> wrote:
>> * Wen Congyang (ghostwcy@gmail.com) wrote:
>>> At 2015/5/14 19:19, Dr. David Alan Gilbert Wrote:
>>>> One thing I wanted to check I understand;  how much RAM do the active and hidden
>>>> disks use;  lets say during the 1st checkpoint   10MB of disk is written,
>>>> and during hte 2nd checkpoint a different 10MB of the disk is written
>>>> (to different locations on the disk); how big are the active and hidden
>>>> disks in RAM - are they 10MB or 20MB?
>>>
>>> 10MB, we will make active and hidden disks empty when doing checkpoint.
>>
>> Thanks, that's what I was hoping.
>>
>> Dave
>>
>>>
>>> Thanks
>>> Wen Congyang
>> --
>> Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK
>>
> 
> 
> Hello Wen, others,
> 
> are you planning to add raw support for a disk underlying below
> nbd-server (secondary copy in docs) anytime soon?

What do you want? The primary disk and secondary disk can be any
format.

Thanks
Wen Congyang

> 
>