Re: [Qemu-devel] [RFC 0/8] block: Live backup prototype

[Kevin Wolf]

Am 10.03.2013 um 10:57 hat Dietmar Maurer geschrieben:
> > The difference between this approach and Dietmar's series is that the backup
> > archive format is implemented outside QEMU and runs as a separate program.
> > 
> > This way, management tools like proxmox, oVirt, OpenStack, and others can
> > provide their preferred backup archive formats without modifying QEMU.  
> 
> So you propose that everyone should use another backup format - this is a bad 
> thing because
> it lead to interoperability problems (vendor lock-in?)

Maybe we could consider having the backup tool inside the qemu.git tree
and thus provide a common format that management applications can choose
to use, but still have it implemented outside the qemu process running
the VM.

I'm still not totally against having the VMA writer even inside the qemu
process, but only as an option. The important part for me is being able
to backup into _any_ BlockDriverState.

Kevin