[Qemu-devel] Re: [PATCH 0/3 v3] Live migration without shared storage

[Jan Kiszka]

address@hidden wrote:
> This series adds support for live migration without shared storage, means 
> copy the storage while migrating. It was tested with KVM. Supports 2 ways 
> to replicate the storage during migration:
>  1. Complete copy of storage to destination 
>  2. Assuming the storage is cow based, copy only the allocated 
>     data, time of the migration will be linear with the amount of allocated 
>     data (user responsibility to verify that the same backend file reside 
>     on src and destination).

For my understanding: Does it require the use of qcow[2] or does it also
work with raw images?

> 
> Live migration will work as follows:
> (qemu) migrate -d tcp:0:4444 # for ordinary live migration
> (qemu) migrate -d -b tcp:0:4444 # for live migration with complete storage 
> copy
> (qemu) migrate -d -i tcp:0:4444 # for live migration with incremental storage 
> copy, storage is cow based.
> 
> The patches are against qemu.git tree

...but without signed-off. Are they RFC for now or do you propose them
for merge?

Jan

PS: I think there are some style issues remaining like tabs or long lines.

-- 
Siemens AG, Corporate Technology, CT SE 2
Corporate Competence Center Embedded Linux