[Sheepdog] Xen?

[MORITA Kazutaka]

At Wed, 12 Oct 2011 07:23:46 +0200,
Frank Matthieß wrote:
> 
> Hello Miles,
> 
> [Miles Fidelman, Mittwoch 12 Oktober 2011 01:09]:
> > That would be cool, but a question:  Why not implement the API as
> > simply a standard disk device interface - the same way that md or
> > lvm appear as standard devices under /dev (or for that matter
> > Vastsky)?  What's the point of tying things so closely to QEMU?
> 
> I think this is a problem of not using the blockdevice from independent 
> hosts. If i recall correctly: One vdi per one vm.

Yes, and QEMU block driver has some useful interfaces for VM disks
(e.g. live snapshot).  If you can accept the restriction (one vdi per
one vm) and don't need some VM specific features, it is no problem to
implement other Sheepdog clients.

Thanks,

Kazutaka