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Date: Sun, 12 Sep 2010 12:10:49 -0500
From: Anthony Liguori <anthony@codemonkey.ws>
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Subject: Re: [Qemu-devel] [PATCH 1/3] block: allow migration to work with
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To: Avi Kivity <avi@redhat.com>
Cc: Kevin Wolf <kwolf@redhat.com>, qemu-devel@nongnu.org, Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>, Juan Quintela <quintela@redhat.com>

On 09/12/2010 11:06 AM, Avi Kivity wrote:
>  On 09/12/2010 05:26 PM, Anthony Liguori wrote:
>> On 09/12/2010 08:28 AM, Avi Kivity wrote:
>>>  On 09/12/2010 03:06 PM, Anthony Liguori wrote:
>>>>
>>>> Backing files and logical size shouldn't change during live migration.
>>>
>>> Why not?
>>
>> To make our lives easier.
>
> It means management needs to block volume resize while a live 
> migration takes place.  Since live migration is typically done by the 
> system automatically, while volume resize happens in response to user 
> request, this isn't a good idea.  Both in terms of user experience, 
> and in terms of pushing more complexity to management.

We don't do volume resize today so it's a moot point.

Regards,

Anthony Liguori