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Re: [Qemu-devel] Live Block Migration using Mirroring
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From: |
Paolo Bonzini |
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Subject: |
Re: [Qemu-devel] Live Block Migration using Mirroring |
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Date: |
Mon, 05 Mar 2012 19:05:03 +0100 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:10.0.1) Gecko/20120216 Thunderbird/10.0.1 |
Il 05/03/2012 18:44, Marcelo Tosatti ha scritto:
> OK, can't it be fixed by image streaming on top of a blkmirror device?
> This would avoid a duplicate interface (such as no need to snapshot_blkdev
> to change to final copy).
>
> That is, start image streaming to a blkmirror device so that updates to
> the new snapshot are replicated across target and destination domains.
This works too, but if you don't have a base image, streaming will
"complete" both the source and destination images with zero clusters.
It's just a limitation of the current implementation, of course.
Paolo