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Re: [Qemu-devel] [PATCH v4 0/8] block: drive-backup live backup command
From: |
Richard W.M. Jones |
Subject: |
Re: [Qemu-devel] [PATCH v4 0/8] block: drive-backup live backup command |
Date: |
Sun, 19 May 2013 20:41:03 +0100 |
User-agent: |
Mutt/1.5.20 (2009-12-10) |
On Sun, May 19, 2013 at 09:30:46PM +0200, Paolo Bonzini wrote:
> Il 19/05/2013 18:47, Richard W.M. Jones ha scritto:
> >> >
> >> > More advanced users may wish to make the target an NBD URL. The NBD
> >> > server
> >> > listening on the other side can process the backup writes any way it
> >> > wishes. I
> >> > previously posted an RFC series with a backup server that streamed
> >> > Dietmar's
> >> > VMA backup archive format.
> > I'm guessing the answer is no, but thought I would ask: Is there
> > any way to use this to do point-in-time inspection of guests?
>
> Almost, and even for an atomic copy of multiple disks. All that is left
> is to create the copy with the disk as a backing file, and switch the
> backing file at the end of the copy. It is a very simple change on top
> of these patches.
Cool news. I look forward to this :-)
Rich.
--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
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- [Qemu-devel] [PATCH v4 4/8] qemu-iotests: add 055 drive-backup test case, (continued)
- [Qemu-devel] [PATCH v4 4/8] qemu-iotests: add 055 drive-backup test case, Stefan Hajnoczi, 2013/05/16
- [Qemu-devel] [PATCH v4 1/8] block: add bdrv_add_before_write_notifier(), Stefan Hajnoczi, 2013/05/16
- [Qemu-devel] [PATCH v4 6/8] blockdev: add DriveBackup transaction, Stefan Hajnoczi, 2013/05/16
- [Qemu-devel] [PATCH v4 8/8] qemu-iotests: test 'drive-backup' transaction in 055, Stefan Hajnoczi, 2013/05/16
- Re: [Qemu-devel] [PATCH v4 0/8] block: drive-backup live backup command, Richard W.M. Jones, 2013/05/19
- Re: [Qemu-devel] [PATCH v4 0/8] block: drive-backup live backup command, Kevin Wolf, 2013/05/22