[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] [PATCH 8/8] docs: add mirroring to live block operation
From: |
Eric Blake |
Subject: |
Re: [Qemu-devel] [PATCH 8/8] docs: add mirroring to live block operations |
Date: |
Fri, 13 Apr 2012 12:05:17 -0600 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:11.0) Gecko/20120329 Thunderbird/11.0.1 |
On 04/13/2012 11:32 AM, Paolo Bonzini wrote:
> Il 13/04/2012 19:09, Eric Blake ha scritto:
>>>> +It is also possible to use raw as the format of the destination image.
>>>> +Converting an image to raw will properly support thin provisioning.
>> Do you need to mention the use of block_job_cancel needed at the point
>> where you are ready to stop qemu from writing into the copy?
>
> No, you need to do this with drive-reopen. Using block_job_cancel will
> report completion, but will leave a race window that can cause to
> corruption in the guest. Do your libvirt patches do that? O:)
They don't in v4 [1], but I'll fix it to do that in v5. Thanks for the
heads up.
[1] https://www.redhat.com/archives/libvir-list/2012-April/msg00330.html
--
Eric Blake address@hidden +1-919-301-3266
Libvirt virtualization library http://libvirt.org
signature.asc
Description: OpenPGP digital signature
[Qemu-devel] [PATCH 7/8] block: add witness argument to drive-reopen, Paolo Bonzini, 2012/04/13
- Re: [Qemu-devel] [PATCH 7/8] block: add witness argument to drive-reopen, Eric Blake, 2012/04/13
- Re: [Qemu-devel] [PATCH 7/8] block: add witness argument to drive-reopen, Paolo Bonzini, 2012/04/16
- Re: [Qemu-devel] [PATCH 7/8] block: add witness argument to drive-reopen, Eric Blake, 2012/04/16
- Re: [Qemu-devel] [PATCH 7/8] block: add witness argument to drive-reopen, Paolo Bonzini, 2012/04/17
- Re: [Qemu-devel] [PATCH 7/8] block: add witness argument to drive-reopen, Eric Blake, 2012/04/17
- Re: [Qemu-devel] [libvirt] [PATCH 7/8] block: add witness argument to drive-reopen, Michal Privoznik, 2012/04/17