[Qemu-devel] Re: [PATCH 1/3] block: allow migration to work with image files

[Juan Quintela]

Avi Kivity <address@hidden> wrote:
>  On 09/12/2010 03:06 PM, Anthony Liguori wrote:
>>
>> Backing files and logical size shouldn't change during live migration.
>
> Why not?

It is supposed to be the same in both sides O:-)
If you want to extend a disk, you need to told qemu about that.  Either
before or after migration, but not "during" migration.

>
>>
>> But even so, I think the interface make sense.  It's basically, drop
>> anything you have cached that may change during migration.  What
>> needs to be read is dependent on features/format.
>
> Sure.  Certainly as an incremental step.

Later, Juan.