[sheepdog-users] Erasure coding and qemu-img

[Liu Yuan]

On Mon, Oct 28, 2013 at 08:57:11PM +0000, Andrew J. Hobbs wrote:
> I don't mind using dog vdi write from a raw file if that's the chosen 
> method.
> 
> There isn't a lot of existing documentation on proper usage of vdi 
> write/read or using vdi backup/restore that I can find at the moment.
> 
> 
> On 10/28/2013 04:15 PM, Valerio Pachera wrote:
> > 2013/10/28 Andrew J. Hobbs <ajhobbs at desu.edu>:
> >>   Is there a way to
> >> specify you want an erasure encoded vdi when using 'qemu-img convert' to
> >> convert a saved qcow2 image back into a vdi?
> > I was wondering the same.
> > I think you can "import" a raw file by 'dog vdi write' on an existing vdi.
> > But I always store disk in qcow2 format to save space...
> 

Add options to official QEMU might be a longer process. I'll try to add erasure
support for 'qemu-img convert' later on. Once it is done, I'll document on how
to use it on our wiki.

Thanks
Yuan