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Re: [Qemu-devel] Query regarding qemu dirty bitmap

From: Sanjay Kumar
Subject: Re: [Qemu-devel] Query regarding qemu dirty bitmap
Date: Sat, 5 Nov 2016 23:26:12 -0400

One more question:

4. How to interpret dirty bitmap file or get list of dirty blocks from the
dirty bitmap in version 2.5?

On Sat, Nov 5, 2016 at 9:29 PM, Sanjay Kumar <address@hidden> wrote:

> Hi John,
> Greetings. Hope you have wonderful weekend.
> This is Sanjay Kumar working on a backup and restore solution for KVM.
> The QEMU dirty bitmap QMPs support are awesome.
> I have below queries in regard to that.
> 1. How to integrate these QMPs for external backup application.
>          a) Is there any command to get the list of all the dirty blocks?
>          b) We just want list of dirty blocks, how to get those during
> migration?
> 2. How to create just dirty bitmap on a file? I don't need data and want
> to avoid COW.
> 3. Is there any plan to add query-block-dirty-bitmap command? If yes, then
> in which version it is coming?
> Please reply. Many thanks in advance.
> With best regards,
> Sanjay Kumar

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