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Re: [Qemu-devel] [PATCH 0/3] dataplane: virtio-blk live migration with x
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From: |
Andreas Färber |
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Subject: |
Re: [Qemu-devel] [PATCH 0/3] dataplane: virtio-blk live migration with x-data-plane=on |
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Date: |
Tue, 23 Jul 2013 11:59:33 +0200 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130620 Thunderbird/17.0.7 |
Am 23.07.2013 11:43, schrieb yinyin:
> 在 2013-7-23，下午5:30，Andreas Färber <address@hidden> 写道：
>> Am 23.07.2013 11:19, schrieb yinyin:
>>> during the migration, the source, not the destination, will start
>>> dataplane again....
>>> I think the process of migration with dataplane as follows:
>>> 1. migration begin to start
>>> 2. the migration source stop the dataplane
>>> 3. do migration ...
>>> 4. migration completed, the destination start the dataplane.
>>
>> I can't speak for the dataplane, but in general the source guest is
>> expected to continue working during live migration (that's the "live"
>> part) until it has been fully transferred to the destination.
>
> when dataplane stop, the source guest can continue work, but not use
> dataplane thread.
So how would it do I/O then?
Andreas
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