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From: Andrey Korolyov <andrey@xdel.ru>
To: Wen Congyang <wency@cn.fujitsu.com>
Cc: Kevin Wolf <kwolf@redhat.com>,
	Yang Hongyang <yanghy@cn.fujitsu.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>,
	"Dr. David Alan Gilbert" <dgilbert@redhat.com>,
	qemu devel <qemu-devel@nongnu.org>,
	Lai Jiangshan <laijs@cn.fujitsu.com>,
	Gonglei <arei.gonglei@huawei.com>,
	Stefan Hajnoczi <stefanha@redhat.com>,
	Paolo Bonzini <pbonzini@redhat.com>,
	Max Reitz <mreitz@redhat.com>,
	zhanghailiang <zhang.zhanghailiang@huawei.com>
Subject: Re: [Qemu-devel] [PATCH COLO v4 01/15] docs: block replication's description
Date: Thu, 21 May 2015 14:43:41 +0300	[thread overview]
Message-ID: <CABYiri9v_7E9Y3-ebTysSysZ1AfVq=2S6br49unrJYUEkCNEMg@mail.gmail.com> (raw)
In-Reply-To: <555D98C1.9030304@cn.fujitsu.com>

On Thu, May 21, 2015 at 11:35 AM, Wen Congyang <wency@cn.fujitsu.com> wrote:
> 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

Oh, sorry, I misread the statement in the readme yesterday, thought
that the second storage must be in qcow2 format. Over yesterday`s late
hours I had picked 'bottom' patches for 3.10 (seqadj introduction and
nfnetlink improvements) and will play with COLO very soon.

  reply	other threads:[~2015-05-21 11:44 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-05-08  9:15 [Qemu-devel] [PATCH COLO v4 00/15] Block replication for continuous checkpoints Wen Congyang
2015-05-08  9:15 ` [Qemu-devel] [PATCH COLO v4 01/15] docs: block replication's description Wen Congyang
2015-05-14 11:19   ` Dr. David Alan Gilbert
2015-05-14 14:00     ` Wen Congyang
2015-05-14 15:38       ` Dr. David Alan Gilbert
2015-05-20 16:31         ` Andrey Korolyov
2015-05-21  8:35           ` Wen Congyang
2015-05-21 11:43             ` Andrey Korolyov [this message]
2015-05-08  9:15 ` [Qemu-devel] [PATCH COLO v4 02/15] allow writing to the backing file Wen Congyang
2015-05-14  7:16   ` Gonglei
2015-05-14  7:32     ` Wen Congyang
2015-05-08  9:15 ` [Qemu-devel] [PATCH COLO v4 03/15] Allow creating backup jobs when opening BDS Wen Congyang
2015-05-08  9:15 ` [Qemu-devel] [PATCH COLO v4 04/15] block: Parse "backing_reference" option to reference existing BDS Wen Congyang
2015-05-08  9:15 ` [Qemu-devel] [PATCH COLO v4 05/15] Backup: clear all bitmap when doing block checkpoint Wen Congyang
2015-05-08  9:15 ` [Qemu-devel] [PATCH COLO v4 06/15] Don't allow a disk use backing reference target Wen Congyang
2015-05-08  9:15 ` [Qemu-devel] [PATCH COLO v4 07/15] Add new block driver interface to connect/disconnect the remote target Wen Congyang
2015-05-08  9:16 ` [Qemu-devel] [PATCH COLO v4 08/15] NBD client: implement block driver interfaces to connect/disconnect NBD server Wen Congyang
2015-05-14  8:16   ` Gonglei
2015-05-14  8:41     ` Wen Congyang
2015-05-08  9:16 ` [Qemu-devel] [PATCH COLO v4 09/15] Introduce a new -drive option to control whether to connect to remote target Wen Congyang
2015-05-08  9:16 ` [Qemu-devel] [PATCH COLO v4 10/15] NBD client: connect to nbd server later Wen Congyang
2015-05-08  9:16 ` [Qemu-devel] [PATCH COLO v4 11/15] Add new block driver interfaces to control block replication Wen Congyang
2015-05-08  9:16 ` [Qemu-devel] [PATCH COLO v4 12/15] skip nbd_target when starting " Wen Congyang
2015-05-08  9:16 ` [Qemu-devel] [PATCH COLO v4 13/15] quorum: implement block driver interfaces for " Wen Congyang
2015-05-08  9:16 ` [Qemu-devel] [PATCH COLO v4 14/15] quorum: allow ignoring child errors Wen Congyang
2015-05-08  9:16 ` [Qemu-devel] [PATCH COLO v4 15/15] Implement new driver for block replication Wen Congyang
2015-05-14  9:18   ` Gonglei
2015-05-20 19:18 ` [Qemu-devel] [PATCH COLO v4 00/15] Block replication for continuous checkpoints Dr. David Alan Gilbert
2015-05-21  0:50   ` Wen Congyang

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