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Re: [Qemu-devel] [PATCH COLO v3 01/14] docs: block replication's descrip
From: |
Stefan Hajnoczi |
Subject: |
Re: [Qemu-devel] [PATCH COLO v3 01/14] docs: block replication's description |
Date: |
Thu, 30 Apr 2015 15:56:44 +0100 |
User-agent: |
Mutt/1.5.23 (2014-03-12) |
On Wed, Apr 29, 2015 at 04:37:49PM +0800, Gonglei wrote:
> On 2015/4/29 16:29, Paolo Bonzini wrote:
> >
> >
> > On 27/04/2015 11:37, Stefan Hajnoczi wrote:
> >>>> But it's only for the failover case. Quorum (or a new
> >>>> block/colo.c driver or filter) is fine for normal colo
> >>>> operation.
> >> Perhaps this patch series should mirror the Secondary's disk to a
> >> Backup Secondary so that the system can be protected very quickly
> >> after failover.
> >>
> >> I think anyone serious about fault tolerance would deploy a Backup
> >> Secondary, otherwise the system cannot survive two failures
> >> unless a human administrator is lucky/fast enough to set up a new
> >> Secondary.
> >
> > Let's do one thing at a time. Otherwise nothing of this is going to
> > be ever completed...
> >
> Yes, and the continuous backup feature is on our TODO list. We hope
> this series (including basic functions and COLO framework) can be
> upstream first.
That's fine, I just wanted to make sure you have the issue in mind.
Stefan
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- Re: [Qemu-devel] [PATCH COLO v3 01/14] docs: block replication's description, (continued)
- Re: [Qemu-devel] [PATCH COLO v3 01/14] docs: block replication's description, Wen Congyang, 2015/04/24
- Re: [Qemu-devel] [PATCH COLO v3 01/14] docs: block replication's description, Dr. David Alan Gilbert, 2015/04/24
- Re: [Qemu-devel] [PATCH COLO v3 01/14] docs: block replication's description, Paolo Bonzini, 2015/04/24
- Re: [Qemu-devel] [PATCH COLO v3 01/14] docs: block replication's description, Wen Congyang, 2015/04/24
- Re: [Qemu-devel] [PATCH COLO v3 01/14] docs: block replication's description, Paolo Bonzini, 2015/04/24
- Re: [Qemu-devel] [PATCH COLO v3 01/14] docs: block replication's description, Wen Congyang, 2015/04/24
- Re: [Qemu-devel] [PATCH COLO v3 01/14] docs: block replication's description, Paolo Bonzini, 2015/04/24
- Re: [Qemu-devel] [PATCH COLO v3 01/14] docs: block replication's description, Stefan Hajnoczi, 2015/04/27
- Re: [Qemu-devel] [PATCH COLO v3 01/14] docs: block replication's description, Paolo Bonzini, 2015/04/29
- Re: [Qemu-devel] [PATCH COLO v3 01/14] docs: block replication's description, Gonglei, 2015/04/29
- Re: [Qemu-devel] [PATCH COLO v3 01/14] docs: block replication's description,
Stefan Hajnoczi <=
- Re: [Qemu-devel] [Qemu-block] [PATCH COLO v3 01/14] docs: block replication's description, Stefan Hajnoczi, 2015/04/22
- Re: [Qemu-devel] [Qemu-block] [PATCH COLO v3 01/14] docs: block replication's description, Wen Congyang, 2015/04/22
Re: [Qemu-devel] [PATCH COLO v3 01/14] docs: block replication's description, Dr. David Alan Gilbert, 2015/04/22
[Qemu-devel] [PATCH COLO v3 06/14] NBD client: implement block driver interfaces for block replication, Wen Congyang, 2015/04/03
[Qemu-devel] [PATCH COLO v3 05/14] quorum: implement block driver interfaces for block replication, Wen Congyang, 2015/04/03
[Qemu-devel] [PATCH COLO v3 04/14] Add new block driver interfaces to control block replication, Wen Congyang, 2015/04/03
[Qemu-devel] [PATCH COLO v3 07/14] allow writing to the backing file, Wen Congyang, 2015/04/03
[Qemu-devel] [PATCH COLO v3 03/14] NBD client: connect to nbd server later, Wen Congyang, 2015/04/03
[Qemu-devel] [PATCH COLO v3 08/14] Allow creating backup jobs when opening BDS, Wen Congyang, 2015/04/03