From: Paolo Bonzini <pbonzini@redhat.com>
To: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] Live Block Migration using Mirroring
Date: Tue, 28 Feb 2012 19:02:40 +0100 [thread overview]
Message-ID: <jij4s0$2cb$1@dough.gmane.org> (raw)
In-Reply-To: <453ad5e3-36eb-45bb-8ce0-91ed7611b5fc@zmail16.collab.prod.int.phx2.redhat.com>
Il 28/02/2012 18:46, Federico Simoncelli ha scritto:
> > > Thank you for getting this. Being able to have a bogus backing file
> > > was a bonus but it's not really required for the mirrored live block
> > > migration. We can add the support for switching the backing file in the
> > > drive-reopen part.
> >
> > Wait, it's not really required for oVirt because it creates the
> > snapshot outside QEMU. What about everyone else?
>
> They'll have (as oVirt) two mirrored snapshot pointing at the same
> base. The only difference is that the image is created internally, but
> that's not hard.
Can you detail how you are switching the backing file in the
drive-reopen? Either the BlockDriverState opened by blkmirror, or the
one opened at the end, will have to use the "wrong" backing_file. How
do you arrange for that?
Paolo
next prev parent reply other threads:[~2012-02-28 18:03 UTC|newest]
Thread overview: 95+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-22 17:13 [Qemu-devel] Live Block Migration using Mirroring Federico Simoncelli
2012-02-22 17:13 ` [Qemu-devel] [PATCH 1/3] Add blkmirror block driver Federico Simoncelli
2012-02-23 16:14 ` Stefan Hajnoczi
2012-02-23 16:18 ` Stefan Hajnoczi
2012-02-23 16:20 ` Federico Simoncelli
2012-02-23 16:28 ` Stefan Hajnoczi
2012-02-23 16:51 ` Federico Simoncelli
2012-02-23 16:18 ` Federico Simoncelli
2012-02-27 9:23 ` Stefan Hajnoczi
2012-02-27 11:37 ` Paolo Bonzini
2012-02-27 11:42 ` Stefan Hajnoczi
2012-02-27 11:48 ` Paolo Bonzini
2012-02-27 13:09 ` Stefan Hajnoczi
2012-02-27 13:47 ` Paolo Bonzini
2012-02-27 14:49 ` Stefan Hajnoczi
2012-02-27 14:59 ` Stefan Hajnoczi
2012-02-27 15:08 ` Paolo Bonzini
2012-02-22 17:13 ` [Qemu-devel] [PATCH 2/3] Update the " Federico Simoncelli
2012-02-23 7:18 ` Paolo Bonzini
2012-02-23 9:44 ` Federico Simoncelli
2012-02-23 9:45 ` Paolo Bonzini
2012-02-22 17:13 ` [Qemu-devel] [PATCH 3/3] Add nocreate option to snapshot_blkdev Federico Simoncelli
2012-02-23 7:19 ` Paolo Bonzini
2012-02-23 7:38 ` Paolo Bonzini
2012-02-23 9:39 ` Federico Simoncelli
2012-02-23 9:48 ` Paolo Bonzini
2012-02-23 10:19 ` Federico Simoncelli
2012-02-23 11:30 ` Paolo Bonzini
2012-02-23 15:47 ` [Qemu-devel] Live Block Migration using Mirroring Stefan Hajnoczi
2012-02-23 16:10 ` Federico Simoncelli
2012-02-23 16:35 ` Stefan Hajnoczi
2012-02-23 17:06 ` Federico Simoncelli
2012-02-24 11:37 ` [Qemu-devel] [PATCH 1/2] Add blkmirror block driver Federico Simoncelli
2012-02-24 11:37 ` [Qemu-devel] [PATCH 2/2] Add the blockdev-reopen and blockdev-migrate commands Federico Simoncelli
2012-02-24 12:03 ` Kevin Wolf
2012-02-24 12:12 ` Federico Simoncelli
2012-02-24 13:11 ` Paolo Bonzini
2012-02-24 17:04 ` Luiz Capitulino
2012-02-27 14:57 ` Markus Armbruster
2012-02-24 16:49 ` [Qemu-devel] [PATCH 1/2 v2] Add blkmirror block driver Federico Simoncelli
2012-02-24 17:02 ` Eric Blake
2012-02-24 17:15 ` Federico Simoncelli
2012-02-24 18:49 ` Paolo Bonzini
2012-02-24 18:17 ` Luiz Capitulino
2012-02-27 9:17 ` Federico Simoncelli
2012-02-24 16:49 ` [Qemu-devel] [PATCH 2/2 v2] Add the blockdev-reopen and blockdev-migrate commands Federico Simoncelli
2012-02-24 17:46 ` Eric Blake
2012-02-24 18:57 ` Paolo Bonzini
2012-02-24 19:37 ` Eric Blake
2012-02-24 19:01 ` Luiz Capitulino
2012-02-24 19:40 ` Eric Blake
2012-02-24 20:26 ` Luiz Capitulino
2012-02-24 22:46 ` Eric Blake
2012-02-24 20:32 ` Paolo Bonzini
2012-02-24 20:36 ` Luiz Capitulino
2012-02-24 21:05 ` Paolo Bonzini
2012-02-24 22:30 ` Eric Blake
2012-02-25 6:47 ` Paolo Bonzini
2012-02-27 11:29 ` Federico Simoncelli
2012-02-27 12:12 ` Luiz Capitulino
2012-02-27 12:49 ` Paolo Bonzini
2012-02-27 13:06 ` Luiz Capitulino
2012-02-27 14:39 ` [Qemu-devel] drive transactions (was Re: [PATCH 2/2 v2] Add the blockdev-reopen and blockdev-migrate commands) Paolo Bonzini
2012-02-27 14:46 ` Anthony Liguori
2012-02-27 14:54 ` Paolo Bonzini
2012-02-27 14:59 ` Anthony Liguori
2012-02-27 15:03 ` Paolo Bonzini
2012-02-27 15:06 ` Anthony Liguori
2012-02-27 15:17 ` Kevin Wolf
2012-02-27 15:24 ` Anthony Liguori
2012-02-27 16:51 ` Paolo Bonzini
2012-02-27 16:58 ` Anthony Liguori
2012-02-27 17:06 ` Paolo Bonzini
2012-02-27 16:33 ` Federico Simoncelli
2012-02-27 16:41 ` Paolo Bonzini
2012-02-27 16:42 ` Anthony Liguori
2012-02-27 16:50 ` Federico Simoncelli
2012-02-27 16:53 ` Anthony Liguori
2012-02-27 16:54 ` Paolo Bonzini
2012-02-27 16:59 ` Anthony Liguori
2012-02-27 17:37 ` Luiz Capitulino
2012-02-28 15:47 ` [Qemu-devel] Live Block Migration using Mirroring Stefan Hajnoczi
2012-02-28 17:15 ` Federico Simoncelli
2012-02-28 17:36 ` Paolo Bonzini
2012-02-28 17:46 ` Federico Simoncelli
2012-02-28 18:02 ` Paolo Bonzini [this message]
2012-02-28 18:21 ` Federico Simoncelli
2012-02-28 17:26 ` Paolo Bonzini
2012-02-29 12:28 ` [Qemu-devel] [PATCHv3] Add blkmirror block driver Federico Simoncelli
2012-02-29 13:02 ` Federico Simoncelli
2012-02-29 17:01 ` [Qemu-devel] [PATCHv4] " Federico Simoncelli
2012-03-05 16:59 ` [Qemu-devel] Live Block Migration using Mirroring Marcelo Tosatti
2012-03-05 17:20 ` Eric Blake
2012-03-05 17:44 ` Marcelo Tosatti
2012-03-05 18:05 ` Paolo Bonzini
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